CINXE.COM

<!DOCTYPE html> <html lang="en-US" class="no-js"> <head> <meta charset="UTF-8"><script type="text/javascript">(window.NREUM||(NREUM={})).init={privacy:{cookies_enabled:true},ajax:{deny_list:["bam.eu01.nr-data.net"]},distributed_tracing:{enabled:true}};(window.NREUM||(NREUM={})).loader_config={agentID:"212354677",accountID:"3196970",trustKey:"3196970",xpid:"VwcOV19UCBACVVNRAgUCUlc=",licenseKey:"NRJS-0940f7eaf4cb46e1cfe",applicationID:"212354543"};;/*! For license information please see nr-loader-spa-1.274.0.min.js.LICENSE.txt */ (()=>{var e,t,r={8122:(e,t,r)=>{"use strict";r.d(t,{a:()=>i});var n=r(944);function i(e,t){try{if(!e||"object"!=typeof e)return(0,n.R)(3);if(!t||"object"!=typeof t)return(0,n.R)(4);const r=Object.create(Object.getPrototypeOf(t),Object.getOwnPropertyDescriptors(t)),o=0===Object.keys(r).length?e:r;for(let a in o)if(void 0!==e[a])try{if(null===e[a]){r[a]=null;continue}Array.isArray(e[a])&&Array.isArray(t[a])?r[a]=Array.from(new Set([...e[a],...t[a]])):"object"==typeof e[a]&&"object"==typeof t[a]?r[a]=i(e[a],t[a]):r[a]=e[a]}catch(e){(0,n.R)(1,e)}return r}catch(e){(0,n.R)(2,e)}}},2555:(e,t,r)=>{"use strict";r.d(t,{Vp:()=>c,fn:()=>s,x1:()=>u});var n=r(384),i=r(8122);const o={beacon:n.NT.beacon,errorBeacon:n.NT.errorBeacon,licenseKey:void 0,applicationID:void 0,sa:void 0,queueTime:void 0,applicationTime:void 0,ttGuid:void 0,user:void 0,account:void 0,product:void 0,extra:void 0,jsAttributes:{},userAttributes:void 0,atts:void 0,transactionName:void 0,tNamePlain:void 0},a={};function s(e){try{const t=c(e);return!!t.licenseKey&&!!t.errorBeacon&&!!t.applicationID}catch(e){return!1}}function c(e){if(!e)throw new Error("All info objects require an agent identifier!");if(!a[e])throw new Error("Info for ".concat(e," was never set"));return a[e]}function u(e,t){if(!e)throw new Error("All info objects require an agent identifier!");a[e]=(0,i.a)(t,o);const r=(0,n.nY)(e);r&&(r.info=a[e])}},9417:(e,t,r)=>{"use strict";r.d(t,{D0:()=>h,gD:()=>g,xN:()=>p});var n=r(993);const i=e=>{if(!e||"string"!=typeof e)return!1;try{document.createDocumentFragment().querySelector(e)}catch{return!1}return!0};var o=r(2614),a=r(944),s=r(384),c=r(8122);const u="[data-nr-mask]",d=()=>{const e={mask_selector:"*",block_selector:"[data-nr-block]",mask_input_options:{color:!1,date:!1,"datetime-local":!1,email:!1,month:!1,number:!1,range:!1,search:!1,tel:!1,text:!1,time:!1,url:!1,week:!1,textarea:!1,select:!1,password:!0}};return{ajax:{deny_list:void 0,block_internal:!0,enabled:!0,harvestTimeSeconds:10,autoStart:!0},distributed_tracing:{enabled:void 0,exclude_newrelic_header:void 0,cors_use_newrelic_header:void 0,cors_use_tracecontext_headers:void 0,allowed_origins:void 0},feature_flags:[],generic_events:{enabled:!0,harvestTimeSeconds:30,autoStart:!0},harvest:{tooManyRequestsDelay:60},jserrors:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},logging:{enabled:!0,harvestTimeSeconds:10,autoStart:!0,level:n.p_.INFO},metrics:{enabled:!0,autoStart:!0},obfuscate:void 0,page_action:{enabled:!0},page_view_event:{enabled:!0,autoStart:!0},page_view_timing:{enabled:!0,harvestTimeSeconds:30,autoStart:!0},performance:{capture_marks:!1,capture_measures:!1},privacy:{cookies_enabled:!0},proxy:{assets:void 0,beacon:void 0},session:{expiresMs:o.wk,inactiveMs:o.BB},session_replay:{autoStart:!0,enabled:!1,harvestTimeSeconds:60,preload:!1,sampling_rate:10,error_sampling_rate:100,collect_fonts:!1,inline_images:!1,fix_stylesheets:!0,mask_all_inputs:!0,get mask_text_selector(){return e.mask_selector},set mask_text_selector(t){i(t)?e.mask_selector="".concat(t,",").concat(u):""===t||null===t?e.mask_selector=u:(0,a.R)(5,t)},get block_class(){return"nr-block"},get ignore_class(){return"nr-ignore"},get mask_text_class(){return"nr-mask"},get block_selector(){return e.block_selector},set block_selector(t){i(t)?e.block_selector+=",".concat(t):""!==t&&(0,a.R)(6,t)},get mask_input_options(){return e.mask_input_options},set mask_input_options(t){t&&"object"==typeof t?e.mask_input_options={...t,password:!0}:(0,a.R)(7,t)}},session_trace:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},soft_navigations:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},spa:{enabled:!0,harvestTimeSeconds:10,autoStart:!0},ssl:void 0,user_actions:{enabled:!0}}},l={},f="All configuration objects require an agent identifier!";function h(e){if(!e)throw new Error(f);if(!l[e])throw new Error("Configuration for ".concat(e," was never set"));return l[e]}function p(e,t){if(!e)throw new Error(f);l[e]=(0,c.a)(t,d());const r=(0,s.nY)(e);r&&(r.init=l[e])}function g(e,t){if(!e)throw new Error(f);var r=h(e);if(r){for(var n=t.split("."),i=0;i<n.length-1;i++)if("object"!=typeof(r=r[n[i]]))return;r=r[n[n.length-1]]}return r}},5603:(e,t,r)=>{"use strict";r.d(t,{a:()=>c,o:()=>s});var n=r(384),i=r(8122);const o={accountID:void 0,trustKey:void 0,agentID:void 0,licenseKey:void 0,applicationID:void 0,xpid:void 0},a={};function s(e){if(!e)throw new Error("All loader-config objects require an agent identifier!");if(!a[e])throw new Error("LoaderConfig for ".concat(e," was never set"));return a[e]}function c(e,t){if(!e)throw new Error("All loader-config objects require an agent identifier!");a[e]=(0,i.a)(t,o);const r=(0,n.nY)(e);r&&(r.loader_config=a[e])}},3371:(e,t,r)=>{"use strict";r.d(t,{V:()=>f,f:()=>l});var n=r(8122),i=r(384),o=r(6154),a=r(9324);let s=0;const c={buildEnv:a.F3,distMethod:a.Xs,version:a.xv,originTime:o.WN},u={customTransaction:void 0,disabled:!1,isolatedBacklog:!1,loaderType:void 0,maxBytes:3e4,onerror:void 0,ptid:void 0,releaseIds:{},appMetadata:{},session:void 0,denyList:void 0,timeKeeper:void 0,obfuscator:void 0},d={};function l(e){if(!e)throw new Error("All runtime objects require an agent identifier!");if(!d[e])throw new Error("Runtime for ".concat(e," was never set"));return d[e]}function f(e,t){if(!e)throw new Error("All runtime objects require an agent identifier!");d[e]={...(0,n.a)(t,u),...c},Object.hasOwnProperty.call(d[e],"harvestCount")||Object.defineProperty(d[e],"harvestCount",{get:()=>++s});const r=(0,i.nY)(e);r&&(r.runtime=d[e])}},9324:(e,t,r)=>{"use strict";r.d(t,{F3:()=>i,Xs:()=>o,Yq:()=>a,xv:()=>n});const n="1.274.0",i="PROD",o="CDN",a="^2.0.0-alpha.17"},6154:(e,t,r)=>{"use strict";r.d(t,{A4:()=>s,OF:()=>d,RI:()=>i,WN:()=>h,bv:()=>o,gm:()=>a,lR:()=>f,m:()=>u,mw:()=>c,sb:()=>l});var n=r(1863);const i="undefined"!=typeof window&&!!window.document,o="undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self.navigator instanceof WorkerNavigator||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis.navigator instanceof WorkerNavigator),a=i?window:"undefined"!=typeof WorkerGlobalScope&&("undefined"!=typeof self&&self instanceof WorkerGlobalScope&&self||"undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope&&globalThis),s="complete"===a?.document?.readyState,c=Boolean("hidden"===a?.document?.visibilityState),u=""+a?.location,d=/iPad|iPhone|iPod/.test(a.navigator?.userAgent),l=d&&"undefined"==typeof SharedWorker,f=(()=>{const e=a.navigator?.userAgent?.match(/Firefox[/\s](\d+\.\d+)/);return Array.isArray(e)&&e.length>=2?+e[1]:0})(),h=Date.now()-(0,n.t)()},7295:(e,t,r)=>{"use strict";r.d(t,{Xv:()=>a,gX:()=>i,iW:()=>o});var n=[];function i(e){if(!e||o(e))return!1;if(0===n.length)return!0;for(var t=0;t<n.length;t++){var r=n[t];if("*"===r.hostname)return!1;if(s(r.hostname,e.hostname)&&c(r.pathname,e.pathname))return!1}return!0}function o(e){return void 0===e.hostname}function a(e){if(n=[],e&&e.length)for(var t=0;t<e.length;t++){let r=e[t];if(!r)continue;0===r.indexOf("http://")?r=r.substring(7):0===r.indexOf("https://")&&(r=r.substring(8));const i=r.indexOf("/");let o,a;i>0?(o=r.substring(0,i),a=r.substring(i)):(o=r,a="");let[s]=o.split(":");n.push({hostname:s,pathname:a})}}function s(e,t){return!(e.length>t.length)&&t.indexOf(e)===t.length-e.length}function c(e,t){return 0===e.indexOf("/")&&(e=e.substring(1)),0===t.indexOf("/")&&(t=t.substring(1)),""===e||e===t}},1687:(e,t,r)=>{"use strict";r.d(t,{Ak:()=>c,Ze:()=>l,x3:()=>u});var n=r(7836),i=r(3606),o=r(860),a=r(2646);const s={};function c(e,t){const r={staged:!1,priority:o.P3[t]||0};d(e),s[e].get(t)||s[e].set(t,r)}function u(e,t){e&&s[e]&&(s[e].get(t)&&s[e].delete(t),h(e,t,!1),s[e].size&&f(e))}function d(e){if(!e)throw new Error("agentIdentifier required");s[e]||(s[e]=new Map)}function l(e="",t="feature",r=!1){if(d(e),!e||!s[e].get(t)||r)return h(e,t);s[e].get(t).staged=!0,f(e)}function f(e){const t=Array.from(s[e]);t.every((([e,t])=>t.staged))&&(t.sort(((e,t)=>e[1].priority-t[1].priority)),t.forEach((([t])=>{s[e].delete(t),h(e,t)})))}function h(e,t,r=!0){const o=e?n.ee.get(e):n.ee,s=i.i.handlers;if(!o.aborted&&o.backlog&&s){if(r){const e=o.backlog[t],r=s[t];if(r){for(let t=0;e&&t<e.length;++t)p(e[t],r);Object.entries(r).forEach((([e,t])=>{Object.values(t||{}).forEach((t=>{t[0]?.on&&t[0]?.context()instanceof a.y&&t[0].on(e,t[1])}))}))}}o.isolatedBacklog||delete s[t],o.backlog[t]=null,o.emit("drain-"+t,[])}}function p(e,t){var r=e[1];Object.values(t[r]||{}).forEach((t=>{var r=e[0];if(t[0]===r){var n=t[1],i=e[3],o=e[2];n.apply(i,o)}}))}},7836:(e,t,r)=>{"use strict";r.d(t,{P:()=>c,ee:()=>u});var n=r(384),i=r(8990),o=r(3371),a=r(2646),s=r(5607);const c="nr@context:".concat(s.W),u=function e(t,r){var n={},s={},d={},l=!1;try{l=16===r.length&&(0,o.f)(r).isolatedBacklog}catch(e){}var f={on:p,addEventListener:p,removeEventListener:function(e,t){var r=n[e];if(!r)return;for(var i=0;i<r.length;i++)r[i]===t&&r.splice(i,1)},emit:function(e,r,n,i,o){!1!==o&&(o=!0);if(u.aborted&&!i)return;t&&o&&t.emit(e,r,n);for(var a=h(n),c=g(e),d=c.length,l=0;l<d;l++)c[l].apply(a,r);var p=v()[s[e]];p&&p.push([f,e,r,a]);return a},get:m,listeners:g,context:h,buffer:function(e,t){const r=v();if(t=t||"feature",f.aborted)return;Object.entries(e||{}).forEach((([e,n])=>{s[n]=t,t in r||(r[t]=[])}))},abort:function(){f._aborted=!0,Object.keys(f.backlog).forEach((e=>{delete f.backlog[e]}))},isBuffering:function(e){return!!v()[s[e]]},debugId:r,backlog:l?{}:t&&"object"==typeof t.backlog?t.backlog:{},isolatedBacklog:l};return Object.defineProperty(f,"aborted",{get:()=>{let e=f._aborted||!1;return e||(t&&(e=t.aborted),e)}}),f;function h(e){return e&&e instanceof a.y?e:e?(0,i.I)(e,c,(()=>new a.y(c))):new a.y(c)}function p(e,t){n[e]=g(e).concat(t)}function g(e){return n[e]||[]}function m(t){return d[t]=d[t]||e(f,t)}function v(){return f.backlog}}(void 0,"globalEE"),d=(0,n.Zm)();d.ee||(d.ee=u)},2646:(e,t,r)=>{"use strict";r.d(t,{y:()=>n});class n{constructor(e){this.contextId=e}}},9908:(e,t,r)=>{"use strict";r.d(t,{d:()=>n,p:()=>i});var n=r(7836).ee.get("handle");function i(e,t,r,i,o){o?(o.buffer([e],i),o.emit(e,t,r)):(n.buffer([e],i),n.emit(e,t,r))}},3606:(e,t,r)=>{"use strict";r.d(t,{i:()=>o});var n=r(9908);o.on=a;var i=o.handlers={};function o(e,t,r,o){a(o||n.d,i,e,t,r)}function a(e,t,r,i,o){o||(o="feature"),e||(e=n.d);var a=t[o]=t[o]||{};(a[r]=a[r]||[]).push([e,i])}},3878:(e,t,r)=>{"use strict";function n(e,t){return{capture:e,passive:!1,signal:t}}function i(e,t,r=!1,i){window.addEventListener(e,t,n(r,i))}function o(e,t,r=!1,i){document.addEventListener(e,t,n(r,i))}r.d(t,{DD:()=>o,jT:()=>n,sp:()=>i})},5607:(e,t,r)=>{"use strict";r.d(t,{W:()=>n});const n=(0,r(9566).bz)()},9566:(e,t,r)=>{"use strict";r.d(t,{LA:()=>s,ZF:()=>c,bz:()=>a,el:()=>u});var n=r(6154);const i="xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx";function o(e,t){return e?15&e[t]:16*Math.random()|0}function a(){const e=n.gm?.crypto||n.gm?.msCrypto;let t,r=0;return e&&e.getRandomValues&&(t=e.getRandomValues(new Uint8Array(30))),i.split("").map((e=>"x"===e?o(t,r++).toString(16):"y"===e?(3&o()|8).toString(16):e)).join("")}function s(e){const t=n.gm?.crypto||n.gm?.msCrypto;let r,i=0;t&&t.getRandomValues&&(r=t.getRandomValues(new Uint8Array(e)));const a=[];for(var s=0;s<e;s++)a.push(o(r,i++).toString(16));return a.join("")}function c(){return s(16)}function u(){return s(32)}},2614:(e,t,r)=>{"use strict";r.d(t,{BB:()=>a,H3:()=>n,g:()=>u,iL:()=>c,tS:()=>s,uh:()=>i,wk:()=>o});const n="NRBA",i="SESSION",o=144e5,a=18e5,s={STARTED:"session-started",PAUSE:"session-pause",RESET:"session-reset",RESUME:"session-resume",UPDATE:"session-update"},c={SAME_TAB:"same-tab",CROSS_TAB:"cross-tab"},u={OFF:0,FULL:1,ERROR:2}},1863:(e,t,r)=>{"use strict";function n(){return Math.floor(performance.now())}r.d(t,{t:()=>n})},7485:(e,t,r)=>{"use strict";r.d(t,{D:()=>i});var n=r(6154);function i(e){if(0===(e||"").indexOf("data:"))return{protocol:"data"};try{const t=new URL(e,location.href),r={port:t.port,hostname:t.hostname,pathname:t.pathname,search:t.search,protocol:t.protocol.slice(0,t.protocol.indexOf(":")),sameOrigin:t.protocol===n.gm?.location?.protocol&&t.host===n.gm?.location?.host};return r.port&&""!==r.port||("http:"===t.protocol&&(r.port="80"),"https:"===t.protocol&&(r.port="443")),r.pathname&&""!==r.pathname?r.pathname.startsWith("/")||(r.pathname="/".concat(r.pathname)):r.pathname="/",r}catch(e){return{}}}},944:(e,t,r)=>{"use strict";function n(e,t){"function"==typeof console.debug&&console.debug("New Relic Warning: https://github.com/newrelic/newrelic-browser-agent/blob/main/docs/warning-codes.md#".concat(e),t)}r.d(t,{R:()=>n})},5284:(e,t,r)=>{"use strict";r.d(t,{t:()=>c,B:()=>s});var n=r(7836),i=r(6154);const o="newrelic";const a=new Set,s={};function c(e,t){const r=n.ee.get(t);s[t]??={},e&&"object"==typeof e&&(a.has(t)||(r.emit("rumresp",[e]),s[t]=e,a.add(t),function(e={}){try{i.gm.dispatchEvent(new CustomEvent(o,{detail:e}))}catch(e){}}({loaded:!0})))}},8990:(e,t,r)=>{"use strict";r.d(t,{I:()=>i});var n=Object.prototype.hasOwnProperty;function i(e,t,r){if(n.call(e,t))return e[t];var i=r();if(Object.defineProperty&&Object.keys)try{return Object.defineProperty(e,t,{value:i,writable:!0,enumerable:!1}),i}catch(e){}return e[t]=i,i}},6389:(e,t,r)=>{"use strict";function n(e,t=500,r={}){const n=r?.leading||!1;let i;return(...r)=>{n&&void 0===i&&(e.apply(this,r),i=setTimeout((()=>{i=clearTimeout(i)}),t)),n||(clearTimeout(i),i=setTimeout((()=>{e.apply(this,r)}),t))}}function i(e){let t=!1;return(...r)=>{t||(t=!0,e.apply(this,r))}}r.d(t,{J:()=>i,s:()=>n})},3304:(e,t,r)=>{"use strict";r.d(t,{A:()=>o});var n=r(7836);const i=()=>{const e=new WeakSet;return(t,r)=>{if("object"==typeof r&&null!==r){if(e.has(r))return;e.add(r)}return r}};function o(e){try{return JSON.stringify(e,i())??""}catch(e){try{n.ee.emit("internal-error",[e])}catch(e){}return""}}},5289:(e,t,r)=>{"use strict";r.d(t,{GG:()=>o,sB:()=>a});var n=r(3878);function i(){return"undefined"==typeof document||"complete"===document.readyState}function o(e,t){if(i())return e();(0,n.sp)("load",e,t)}function a(e){if(i())return e();(0,n.DD)("DOMContentLoaded",e)}},384:(e,t,r)=>{"use strict";r.d(t,{NT:()=>o,US:()=>d,Zm:()=>a,bQ:()=>c,dV:()=>s,nY:()=>u,pV:()=>l});var n=r(6154),i=r(1863);const o={beacon:"bam.nr-data.net",errorBeacon:"bam.nr-data.net"};function a(){return n.gm.NREUM||(n.gm.NREUM={}),void 0===n.gm.newrelic&&(n.gm.newrelic=n.gm.NREUM),n.gm.NREUM}function s(){let e=a();return e.o||(e.o={ST:n.gm.setTimeout,SI:n.gm.setImmediate,CT:n.gm.clearTimeout,XHR:n.gm.XMLHttpRequest,REQ:n.gm.Request,EV:n.gm.Event,PR:n.gm.Promise,MO:n.gm.MutationObserver,FETCH:n.gm.fetch,WS:n.gm.WebSocket}),e}function c(e,t){let r=a();r.initializedAgents??={},t.initializedAt={ms:(0,i.t)(),date:new Date},r.initializedAgents[e]=t}function u(e){let t=a();return t.initializedAgents?.[e]}function d(e,t){a()[e]=t}function l(){return function(){let e=a();const t=e.info||{};e.info={beacon:o.beacon,errorBeacon:o.errorBeacon,...t}}(),function(){let e=a();const t=e.init||{};e.init={...t}}(),s(),function(){let e=a();const t=e.loader_config||{};e.loader_config={...t}}(),a()}},2843:(e,t,r)=>{"use strict";r.d(t,{u:()=>i});var n=r(3878);function i(e,t=!1,r,i){(0,n.DD)("visibilitychange",(function(){if(t)return void("hidden"===document.visibilityState&&e());e(document.visibilityState)}),r,i)}},8139:(e,t,r)=>{"use strict";r.d(t,{u:()=>f});var n=r(7836),i=r(3434),o=r(8990),a=r(6154);const s={},c=a.gm.XMLHttpRequest,u="addEventListener",d="removeEventListener",l="nr@wrapped:".concat(n.P);function f(e){var t=function(e){return(e||n.ee).get("events")}(e);if(s[t.debugId]++)return t;s[t.debugId]=1;var r=(0,i.YM)(t,!0);function f(e){r.inPlace(e,[u,d],"-",p)}function p(e,t){return e[1]}return"getPrototypeOf"in Object&&(a.RI&&h(document,f),h(a.gm,f),h(c.prototype,f)),t.on(u+"-start",(function(e,t){var n=e[1];if(null!==n&&("function"==typeof n||"object"==typeof n)){var i=(0,o.I)(n,l,(function(){var e={object:function(){if("function"!=typeof n.handleEvent)return;return n.handleEvent.apply(n,arguments)},function:n}[typeof n];return e?r(e,"fn-",null,e.name||"anonymous"):n}));this.wrapped=e[1]=i}})),t.on(d+"-start",(function(e){e[1]=this.wrapped||e[1]})),t}function h(e,t,...r){let n=e;for(;"object"==typeof n&&!Object.prototype.hasOwnProperty.call(n,u);)n=Object.getPrototypeOf(n);n&&t(n,...r)}},3434:(e,t,r)=>{"use strict";r.d(t,{Jt:()=>o,YM:()=>c});var n=r(7836),i=r(5607);const o="nr@original:".concat(i.W);var a=Object.prototype.hasOwnProperty,s=!1;function c(e,t){return e||(e=n.ee),r.inPlace=function(e,t,n,i,o){n||(n="");const a="-"===n.charAt(0);for(let s=0;s<t.length;s++){const c=t[s],u=e[c];d(u)||(e[c]=r(u,a?c+n:n,i,c,o))}},r.flag=o,r;function r(t,r,n,s,c){return d(t)?t:(r||(r=""),nrWrapper[o]=t,function(e,t,r){if(Object.defineProperty&&Object.keys)try{return Object.keys(e).forEach((function(r){Object.defineProperty(t,r,{get:function(){return e[r]},set:function(t){return e[r]=t,t}})})),t}catch(e){u([e],r)}for(var n in e)a.call(e,n)&&(t[n]=e[n])}(t,nrWrapper,e),nrWrapper);function nrWrapper(){var o,a,d,l;try{a=this,o=[...arguments],d="function"==typeof n?n(o,a):n||{}}catch(t){u([t,"",[o,a,s],d],e)}i(r+"start",[o,a,s],d,c);try{return l=t.apply(a,o)}catch(e){throw i(r+"err",[o,a,e],d,c),e}finally{i(r+"end",[o,a,l],d,c)}}}function i(r,n,i,o){if(!s||t){var a=s;s=!0;try{e.emit(r,n,i,t,o)}catch(t){u([t,r,n,i],e)}s=a}}}function u(e,t){t||(t=n.ee);try{t.emit("internal-error",e)}catch(e){}}function d(e){return!(e&&"function"==typeof e&&e.apply&&!e[o])}},9300:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.ajax},3333:(e,t,r)=>{"use strict";r.d(t,{TZ:()=>n,Zp:()=>i,mq:()=>s,nf:()=>a,qN:()=>o});const n=r(860).K7.genericEvents,i=["auxclick","click","copy","keydown","paste","scrollend"],o=["focus","blur"],a=4,s=1e3},6774:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.jserrors},993:(e,t,r)=>{"use strict";r.d(t,{ET:()=>o,TZ:()=>a,p_:()=>i});var n=r(860);const i={ERROR:"ERROR",WARN:"WARN",INFO:"INFO",DEBUG:"DEBUG",TRACE:"TRACE"},o="log",a=n.K7.logging},3785:(e,t,r)=>{"use strict";r.d(t,{R:()=>c,b:()=>u});var n=r(9908),i=r(1863),o=r(860),a=r(3969),s=r(993);function c(e,t,r={},c=s.p_.INFO){(0,n.p)(a.xV,["API/logging/".concat(c.toLowerCase(),"/called")],void 0,o.K7.metrics,e),(0,n.p)(s.ET,[(0,i.t)(),t,r,c],void 0,o.K7.logging,e)}function u(e){return"string"==typeof e&&Object.values(s.p_).some((t=>t===e.toUpperCase().trim()))}},3969:(e,t,r)=>{"use strict";r.d(t,{TZ:()=>n,XG:()=>s,rs:()=>i,xV:()=>a,z_:()=>o});const n=r(860).K7.metrics,i="sm",o="cm",a="storeSupportabilityMetrics",s="storeEventMetrics"},6630:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewEvent},782:(e,t,r)=>{"use strict";r.d(t,{T:()=>n});const n=r(860).K7.pageViewTiming},6344:(e,t,r)=>{"use strict";r.d(t,{BB:()=>d,G4:()=>o,Qb:()=>l,TZ:()=>i,Ug:()=>a,_s:()=>s,bc:()=>u,yP:()=>c});var n=r(2614);const i=r(860).K7.sessionReplay,o={RECORD:"recordReplay",PAUSE:"pauseReplay",REPLAY_RUNNING:"replayRunning",ERROR_DURING_REPLAY:"errorDuringReplay"},a=.12,s={DomContentLoaded:0,Load:1,FullSnapshot:2,IncrementalSnapshot:3,Meta:4,Custom:5},c={[n.g.ERROR]:15e3,[n.g.FULL]:3e5,[n.g.OFF]:0},u={RESET:{message:"Session was reset",sm:"Reset"},IMPORT:{message:"Recorder failed to import",sm:"Import"},TOO_MANY:{message:"429: Too Many Requests",sm:"Too-Many"},TOO_BIG:{message:"Payload was too large",sm:"Too-Big"},CROSS_TAB:{message:"Session Entity was set to OFF on another tab",sm:"Cross-Tab"},ENTITLEMENTS:{message:"Session Replay is not allowed and will not be started",sm:"Entitlement"}},d=5e3,l={API:"api"}},5270:(e,t,r)=>{"use strict";r.d(t,{Aw:()=>c,CT:()=>u,SR:()=>s});var n=r(384),i=r(9417),o=r(7767),a=r(6154);function s(e){return!!(0,n.dV)().o.MO&&(0,o.V)(e)&&!0===(0,i.gD)(e,"session_trace.enabled")}function c(e){return!0===(0,i.gD)(e,"session_replay.preload")&&s(e)}function u(e,t){const r=t.correctAbsoluteTimestamp(e);return{originalTimestamp:e,correctedTimestamp:r,timestampDiff:e-r,originTime:a.WN,correctedOriginTime:t.correctedOriginTime,originTimeDiff:Math.floor(a.WN-t.correctedOriginTime)}}},3738:(e,t,r)=>{"use strict";r.d(t,{He:()=>i,Kp:()=>s,Lc:()=>u,Rz:()=>d,TZ:()=>n,bD:()=>o,d3:()=>a,jx:()=>l,uP:()=>c});const n=r(860).K7.sessionTrace,i="bstResource",o="resource",a="-start",s="-end",c="fn"+a,u="fn"+s,d="pushState",l=1e3},3962:(e,t,r)=>{"use strict";r.d(t,{AM:()=>o,O2:()=>s,Qu:()=>c,TZ:()=>a,ih:()=>u,tC:()=>i});var n=r(860);const i=["click","keydown","submit"],o="api",a=n.K7.softNav,s={INITIAL_PAGE_LOAD:"",ROUTE_CHANGE:1,UNSPECIFIED:2},c={INTERACTION:1,AJAX:2,CUSTOM_END:3,CUSTOM_TRACER:4},u={IP:"in progress",FIN:"finished",CAN:"cancelled"}},7378:(e,t,r)=>{"use strict";r.d(t,{$p:()=>x,BR:()=>b,Kp:()=>R,L3:()=>y,Lc:()=>c,NC:()=>o,SG:()=>d,TZ:()=>i,U6:()=>p,UT:()=>m,d3:()=>w,dT:()=>f,e5:()=>A,gx:()=>v,l9:()=>l,oW:()=>h,op:()=>g,rw:()=>u,tH:()=>E,uP:()=>s,wW:()=>T,xq:()=>a});var n=r(384);const i=r(860).K7.spa,o=["click","submit","keypress","keydown","keyup","change"],a=999,s="fn-start",c="fn-end",u="cb-start",d="api-ixn-",l="remaining",f="interaction",h="spaNode",p="jsonpNode",g="fetch-start",m="fetch-done",v="fetch-body-",b="jsonp-end",y=(0,n.dV)().o.ST,w="-start",R="-end",x="-body",T="cb"+R,A="jsTime",E="fetch"},4234:(e,t,r)=>{"use strict";r.d(t,{W:()=>o});var n=r(7836),i=r(1687);class o{constructor(e,t){this.agentIdentifier=e,this.ee=n.ee.get(e),this.featureName=t,this.blocked=!1}deregisterDrain(){(0,i.x3)(this.agentIdentifier,this.featureName)}}},7767:(e,t,r)=>{"use strict";r.d(t,{V:()=>o});var n=r(9417),i=r(6154);const o=e=>i.RI&&!0===(0,n.gD)(e,"privacy.cookies_enabled")},425:(e,t,r)=>{"use strict";r.d(t,{j:()=>j});var n=r(860),i=r(2555),o=r(3371),a=r(9908),s=r(7836),c=r(1687),u=r(5289),d=r(6154),l=r(944),f=r(3969),h=r(384),p=r(6344);const g=["setErrorHandler","finished","addToTrace","addRelease","addPageAction","setCurrentRouteName","setPageViewName","setCustomAttribute","interaction","noticeError","setUserId","setApplicationVersion","start",p.G4.RECORD,p.G4.PAUSE,"log","wrapLogger"],m=["setErrorHandler","finished","addToTrace","addRelease"];var v=r(1863),b=r(2614),y=r(993),w=r(3785),R=r(2646),x=r(3434);function T(e,t,r,n){if("object"!=typeof t||!t||"string"!=typeof r||!r||"function"!=typeof t[r])return(0,l.R)(29);const i=function(e){return(e||s.ee).get("logger")}(e),o=(0,x.YM)(i),a=new R.y(s.P);return a.level=n.level,a.customAttributes=n.customAttributes,o.inPlace(t,[r],"wrap-logger-",a),i}function A(){const e=(0,h.pV)();g.forEach((t=>{e[t]=(...r)=>function(t,...r){let n=[];return Object.values(e.initializedAgents).forEach((e=>{e&&e.api?e.exposed&&e.api[t]&&n.push(e.api[t](...r)):(0,l.R)(38,t)})),n.length>1?n:n[0]}(t,...r)}))}const E={};var S=r(9417),N=r(5603),O=r(5284);const _=e=>{const t=e.startsWith("http");e+="/",r.p=t?e:"https://"+e};let I=!1;function j(e,t={},g,R){let{init:x,info:j,loader_config:P,runtime:C={},exposed:k=!0}=t;C.loaderType=g;const L=(0,h.pV)();j||(x=L.init,j=L.info,P=L.loader_config),(0,S.xN)(e.agentIdentifier,x||{}),(0,N.a)(e.agentIdentifier,P||{}),j.jsAttributes??={},d.bv&&(j.jsAttributes.isWorker=!0),(0,i.x1)(e.agentIdentifier,j);const H=(0,S.D0)(e.agentIdentifier),D=[j.beacon,j.errorBeacon];I||(H.proxy.assets&&(_(H.proxy.assets),D.push(H.proxy.assets)),H.proxy.beacon&&D.push(H.proxy.beacon),A(),(0,h.US)("activatedFeatures",O.B),e.runSoftNavOverSpa&&=!0===H.soft_navigations.enabled&&H.feature_flags.includes("soft_nav")),C.denyList=[...H.ajax.deny_list||[],...H.ajax.block_internal?D:[]],C.ptid=e.agentIdentifier,(0,o.V)(e.agentIdentifier,C),e.ee=s.ee.get(e.agentIdentifier),void 0===e.api&&(e.api=function(e,t,h=!1){t||(0,c.Ak)(e,"api");const g={};var R=s.ee.get(e),x=R.get("tracer");E[e]=b.g.OFF,R.on(p.G4.REPLAY_RUNNING,(t=>{E[e]=t}));var A="api-",S=A+"ixn-";function N(t,r,n,o){const a=(0,i.Vp)(e);return null===r?delete a.jsAttributes[t]:(0,i.x1)(e,{...a,jsAttributes:{...a.jsAttributes,[t]:r}}),I(A,n,!0,o||null===r?"session":void 0)(t,r)}function O(){}g.log=function(e,{customAttributes:t={},level:r=y.p_.INFO}={}){(0,a.p)(f.xV,["API/log/called"],void 0,n.K7.metrics,R),(0,w.R)(R,e,t,r)},g.wrapLogger=(e,t,{customAttributes:r={},level:i=y.p_.INFO}={})=>{(0,a.p)(f.xV,["API/wrapLogger/called"],void 0,n.K7.metrics,R),T(R,e,t,{customAttributes:r,level:i})},m.forEach((e=>{g[e]=I(A,e,!0,"api")})),g.addPageAction=I(A,"addPageAction",!0,n.K7.genericEvents),g.setPageViewName=function(t,r){if("string"==typeof t)return"/"!==t.charAt(0)&&(t="/"+t),(0,o.f)(e).customTransaction=(r||"http://custom.transaction")+t,I(A,"setPageViewName",!0)()},g.setCustomAttribute=function(e,t,r=!1){if("string"==typeof e){if(["string","number","boolean"].includes(typeof t)||null===t)return N(e,t,"setCustomAttribute",r);(0,l.R)(40,typeof t)}else(0,l.R)(39,typeof e)},g.setUserId=function(e){if("string"==typeof e||null===e)return N("enduser.id",e,"setUserId",!0);(0,l.R)(41,typeof e)},g.setApplicationVersion=function(e){if("string"==typeof e||null===e)return N("application.version",e,"setApplicationVersion",!1);(0,l.R)(42,typeof e)},g.start=()=>{try{(0,a.p)(f.xV,["API/start/called"],void 0,n.K7.metrics,R),R.emit("manual-start-all")}catch(e){(0,l.R)(23,e)}},g[p.G4.RECORD]=function(){(0,a.p)(f.xV,["API/recordReplay/called"],void 0,n.K7.metrics,R),(0,a.p)(p.G4.RECORD,[],void 0,n.K7.sessionReplay,R)},g[p.G4.PAUSE]=function(){(0,a.p)(f.xV,["API/pauseReplay/called"],void 0,n.K7.metrics,R),(0,a.p)(p.G4.PAUSE,[],void 0,n.K7.sessionReplay,R)},g.interaction=function(e){return(new O).get("object"==typeof e?e:{})};const _=O.prototype={createTracer:function(e,t){var r={},i=this,o="function"==typeof t;return(0,a.p)(f.xV,["API/createTracer/called"],void 0,n.K7.metrics,R),h||(0,a.p)(S+"tracer",[(0,v.t)(),e,r],i,n.K7.spa,R),function(){if(x.emit((o?"":"no-")+"fn-start",[(0,v.t)(),i,o],r),o)try{return t.apply(this,arguments)}catch(e){const t="string"==typeof e?new Error(e):e;throw x.emit("fn-err",[arguments,this,t],r),t}finally{x.emit("fn-end",[(0,v.t)()],r)}}}};function I(e,t,r,i){return function(){return(0,a.p)(f.xV,["API/"+t+"/called"],void 0,n.K7.metrics,R),i&&(0,a.p)(e+t,[(0,v.t)(),...arguments],r?null:this,i,R),r?void 0:this}}function j(){r.e(478).then(r.bind(r,8778)).then((({setAPI:t})=>{t(e),(0,c.Ze)(e,"api")})).catch((e=>{(0,l.R)(27,e),R.abort()}))}return["actionText","setName","setAttribute","save","ignore","onEnd","getContext","end","get"].forEach((e=>{_[e]=I(S,e,void 0,h?n.K7.softNav:n.K7.spa)})),g.setCurrentRouteName=h?I(S,"routeName",void 0,n.K7.softNav):I(A,"routeName",!0,n.K7.spa),g.noticeError=function(t,r){"string"==typeof t&&(t=new Error(t)),(0,a.p)(f.xV,["API/noticeError/called"],void 0,n.K7.metrics,R),(0,a.p)("err",[t,(0,v.t)(),!1,r,!!E[e]],void 0,n.K7.jserrors,R)},d.RI?(0,u.GG)((()=>j()),!0):j(),g}(e.agentIdentifier,R,e.runSoftNavOverSpa)),void 0===e.exposed&&(e.exposed=k),I=!0}},8374:(e,t,r)=>{r.nc=(()=>{try{return document?.currentScript?.nonce}catch(e){}return""})()},860:(e,t,r)=>{"use strict";r.d(t,{$J:()=>o,K7:()=>n,P3:()=>i});const n={ajax:"ajax",genericEvents:"generic_events",jserrors:"jserrors",logging:"logging",metrics:"metrics",pageAction:"page_action",pageViewEvent:"page_view_event",pageViewTiming:"page_view_timing",sessionReplay:"session_replay",sessionTrace:"session_trace",softNav:"soft_navigations",spa:"spa"},i={[n.pageViewEvent]:1,[n.pageViewTiming]:2,[n.metrics]:3,[n.jserrors]:4,[n.spa]:5,[n.ajax]:6,[n.sessionTrace]:7,[n.softNav]:8,[n.sessionReplay]:9,[n.logging]:10,[n.genericEvents]:11},o={[n.pageViewTiming]:"events",[n.ajax]:"events",[n.spa]:"events",[n.softNav]:"events",[n.metrics]:"jserrors",[n.jserrors]:"jserrors",[n.sessionTrace]:"browser/blobs",[n.sessionReplay]:"browser/blobs",[n.logging]:"browser/logs",[n.genericEvents]:"ins"}}},n={};function i(e){var t=n[e];if(void 0!==t)return t.exports;var o=n[e]={exports:{}};return r[e](o,o.exports,i),o.exports}i.m=r,i.d=(e,t)=>{for(var r in t)i.o(t,r)&&!i.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},i.f={},i.e=e=>Promise.all(Object.keys(i.f).reduce(((t,r)=>(i.f[r](e,t),t)),[])),i.u=e=>({212:"nr-spa-compressor",249:"nr-spa-recorder",478:"nr-spa"}[e]+"-1.274.0.min.js"),i.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),e={},t="NRBA-1.274.0.PROD:",i.l=(r,n,o,a)=>{if(e[r])e[r].push(n);else{var s,c;if(void 0!==o)for(var u=document.getElementsByTagName("script"),d=0;d<u.length;d++){var l=u[d];if(l.getAttribute("src")==r||l.getAttribute("data-webpack")==t+o){s=l;break}}if(!s){c=!0;var f={478:"sha512-1vUqEfJPB8Pihje9mv5CfYgkitO1FWcS+UQb84DbXqP8oYctRv4/lzl/MzNLPlRhcY1WVDBGL20I8vm6s2VV7g==",249:"sha512-Y/BeZAh6VSTmUtUNmS5XdyKxL92s30Fyyj8xVW76HSPxcKItL4+x2+kGMZc8pMJnUpZDz1L4eftZQAJh3D8NnA==",212:"sha512-Gn2tQ3qog5Yhrx/gRutkSTYPp+7nkKFt4/mIXg99LxcNpMDAYJZDBYmAACdoHNM86+iq1F3cBcQotFNzjIX8bw=="};(s=document.createElement("script")).charset="utf-8",s.timeout=120,i.nc&&s.setAttribute("nonce",i.nc),s.setAttribute("data-webpack",t+o),s.src=r,0!==s.src.indexOf(window.location.origin+"/")&&(s.crossOrigin="anonymous"),f[a]&&(s.integrity=f[a])}e[r]=[n];var h=(t,n)=>{s.onerror=s.onload=null,clearTimeout(p);var i=e[r];if(delete e[r],s.parentNode&&s.parentNode.removeChild(s),i&&i.forEach((e=>e(n))),t)return t(n)},p=setTimeout(h.bind(null,void 0,{type:"timeout",target:s}),12e4);s.onerror=h.bind(null,s.onerror),s.onload=h.bind(null,s.onload),c&&document.head.appendChild(s)}},i.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.p="https://js-agent.newrelic.com/",(()=>{var e={38:0,788:0};i.f.j=(t,r)=>{var n=i.o(e,t)?e[t]:void 0;if(0!==n)if(n)r.push(n[2]);else{var o=new Promise(((r,i)=>n=e[t]=[r,i]));r.push(n[2]=o);var a=i.p+i.u(t),s=new Error;i.l(a,(r=>{if(i.o(e,t)&&(0!==(n=e[t])&&(e[t]=void 0),n)){var o=r&&("load"===r.type?"missing":r.type),a=r&&r.target&&r.target.src;s.message="Loading chunk "+t+" failed.\n("+o+": "+a+")",s.name="ChunkLoadError",s.type=o,s.request=a,n[1](s)}}),"chunk-"+t,t)}};var t=(t,r)=>{var n,o,[a,s,c]=r,u=0;if(a.some((t=>0!==e[t]))){for(n in s)i.o(s,n)&&(i.m[n]=s[n]);if(c)c(i)}for(t&&t(r);u<a.length;u++)o=a[u],i.o(e,o)&&e[o]&&e[o][0](),e[o]=0},r=self["webpackChunk:NRBA-1.274.0.PROD"]=self["webpackChunk:NRBA-1.274.0.PROD"]||[];r.forEach(t.bind(null,0)),r.push=t.bind(null,r.push.bind(r))})(),(()=>{"use strict";i(8374);var e=i(944),t=i(6344),r=i(9566);class n{agentIdentifier;constructor(e=(0,r.LA)(16)){this.agentIdentifier=e}#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}addPageAction(e,t){return this.#e("addPageAction",e,t)}setPageViewName(e,t){return this.#e("setPageViewName",e,t)}setCustomAttribute(e,t,r){return this.#e("setCustomAttribute",e,t,r)}noticeError(e,t){return this.#e("noticeError",e,t)}setUserId(e){return this.#e("setUserId",e)}setApplicationVersion(e){return this.#e("setApplicationVersion",e)}setErrorHandler(e){return this.#e("setErrorHandler",e)}addRelease(e,t){return this.#e("addRelease",e,t)}log(e,t){return this.#e("log",e,t)}}class o extends n{#e(t,...r){if("function"==typeof this.api?.[t])return this.api[t](...r);(0,e.R)(35,t)}start(){return this.#e("start")}finished(e){return this.#e("finished",e)}recordReplay(){return this.#e(t.G4.RECORD)}pauseReplay(){return this.#e(t.G4.PAUSE)}addToTrace(e){return this.#e("addToTrace",e)}setCurrentRouteName(e){return this.#e("setCurrentRouteName",e)}interaction(){return this.#e("interaction")}wrapLogger(e,t,r){return this.#e("wrapLogger",e,t,r)}}var a=i(860),s=i(9417);const c=Object.values(a.K7);function u(e){const t={};return c.forEach((r=>{t[r]=function(e,t){return!0===(0,s.gD)(t,"".concat(e,".enabled"))}(r,e)})),t}var d=i(425);var l=i(1687),f=i(4234),h=i(5289),p=i(6154),g=i(5270),m=i(7767),v=i(6389);class b extends f.W{constructor(e,t,r=!0){super(e.agentIdentifier,t),this.auto=r,this.abortHandler=void 0,this.featAggregate=void 0,this.onAggregateImported=void 0,!1===e.init[this.featureName].autoStart&&(this.auto=!1),this.auto?(0,l.Ak)(e.agentIdentifier,t):this.ee.on("manual-start-all",(0,v.J)((()=>{(0,l.Ak)(e.agentIdentifier,this.featureName),this.auto=!0,this.importAggregator(e)})))}importAggregator(t,r={}){if(this.featAggregate||!this.auto)return;let n;this.onAggregateImported=new Promise((e=>{n=e}));const o=async()=>{let o;try{if((0,m.V)(this.agentIdentifier)){const{setupAgentSession:e}=await i.e(478).then(i.bind(i,6526));o=e(t)}}catch(t){(0,e.R)(20,t),this.ee.emit("internal-error",[t]),this.featureName===a.K7.sessionReplay&&this.abortHandler?.()}try{if(t.sharedAggregator)await t.sharedAggregator;else{t.sharedAggregator=i.e(478).then(i.bind(i,9337));const{EventAggregator:e}=await t.sharedAggregator;t.sharedAggregator=new e}if(!this.#t(this.featureName,o))return(0,l.Ze)(this.agentIdentifier,this.featureName),void n(!1);const{lazyFeatureLoader:e}=await i.e(478).then(i.bind(i,6103)),{Aggregate:a}=await e(this.featureName,"aggregate");this.featAggregate=new a(t,r),n(!0)}catch(t){(0,e.R)(34,t),this.abortHandler?.(),(0,l.Ze)(this.agentIdentifier,this.featureName,!0),n(!1),this.ee&&this.ee.abort()}};p.RI?(0,h.GG)((()=>o()),!0):o()}#t(e,t){switch(e){case a.K7.sessionReplay:return(0,g.SR)(this.agentIdentifier)&&!!t;case a.K7.sessionTrace:return!!t;default:return!0}}}var y=i(6630);class w extends b{static featureName=y.T;constructor(e,t=!0){super(e,y.T,t),this.importAggregator(e)}}var R=i(384);var x=i(9908),T=i(2843),A=i(3878),E=i(782),S=i(1863);class N extends b{static featureName=E.T;constructor(e,t=!0){super(e,E.T,t),p.RI&&((0,T.u)((()=>(0,x.p)("docHidden",[(0,S.t)()],void 0,E.T,this.ee)),!0),(0,A.sp)("pagehide",(()=>(0,x.p)("winPagehide",[(0,S.t)()],void 0,E.T,this.ee))),this.importAggregator(e))}}var O=i(3969);class _ extends b{static featureName=O.TZ;constructor(e,t=!0){super(e,O.TZ,t),this.importAggregator(e)}}var I=i(6774),j=i(3304);class P{constructor(e,t,r,n,i){this.name="UncaughtError",this.message="string"==typeof e?e:(0,j.A)(e),this.sourceURL=t,this.line=r,this.column=n,this.__newrelic=i}}function C(e){return H(e)?e:new P(void 0!==e?.message?e.message:e,e?.filename||e?.sourceURL,e?.lineno||e?.line,e?.colno||e?.col,e?.__newrelic)}function k(e){const t="Unhandled Promise Rejection";if(!e?.reason)return;if(H(e.reason))try{return e.reason.message=t+": "+e.reason.message,C(e.reason)}catch(t){return C(e.reason)}const r=C(e.reason);return r.message=t+": "+r?.message,r}function L(e){if(e.error instanceof SyntaxError&&!/:\d+$/.test(e.error.stack?.trim())){const t=new P(e.message,e.filename,e.lineno,e.colno,e.error.__newrelic);return t.name=SyntaxError.name,t}return H(e.error)?e.error:C(e)}function H(e){return e instanceof Error&&!!e.stack}class D extends b{static featureName=I.T;#r=!1;constructor(e,r=!0){super(e,I.T,r);try{this.removeOnAbort=new AbortController}catch(e){}this.ee.on("internal-error",(e=>{this.abortHandler&&(0,x.p)("ierr",[C(e),(0,S.t)(),!0,{},this.#r],void 0,this.featureName,this.ee)})),this.ee.on(t.G4.REPLAY_RUNNING,(e=>{this.#r=e})),p.gm.addEventListener("unhandledrejection",(e=>{this.abortHandler&&(0,x.p)("err",[k(e),(0,S.t)(),!1,{unhandledPromiseRejection:1},this.#r],void 0,this.featureName,this.ee)}),(0,A.jT)(!1,this.removeOnAbort?.signal)),p.gm.addEventListener("error",(e=>{this.abortHandler&&(0,x.p)("err",[L(e),(0,S.t)(),!1,{},this.#r],void 0,this.featureName,this.ee)}),(0,A.jT)(!1,this.removeOnAbort?.signal)),this.abortHandler=this.#n,this.importAggregator(e)}#n(){this.removeOnAbort?.abort(),this.abortHandler=void 0}}var M=i(8990);let K=1;const U="nr@id";function V(e){const t=typeof e;return!e||"object"!==t&&"function"!==t?-1:e===p.gm?0:(0,M.I)(e,U,(function(){return K++}))}function G(e){if("string"==typeof e&&e.length)return e.length;if("object"==typeof e){if("undefined"!=typeof ArrayBuffer&&e instanceof ArrayBuffer&&e.byteLength)return e.byteLength;if("undefined"!=typeof Blob&&e instanceof Blob&&e.size)return e.size;if(!("undefined"!=typeof FormData&&e instanceof FormData))try{return(0,j.A)(e).length}catch(e){return}}}var F=i(8139),B=i(7836),W=i(3434);const z={},q=["open","send"];function Z(t){var r=t||B.ee;const n=function(e){return(e||B.ee).get("xhr")}(r);if(z[n.debugId]++)return n;z[n.debugId]=1,(0,F.u)(r);var i=(0,W.YM)(n),o=p.gm.XMLHttpRequest,a=p.gm.MutationObserver,s=p.gm.Promise,c=p.gm.setInterval,u="readystatechange",d=["onload","onerror","onabort","onloadstart","onloadend","onprogress","ontimeout"],l=[],f=p.gm.XMLHttpRequest=function(t){const r=new o(t),a=n.context(r);try{n.emit("new-xhr",[r],a),r.addEventListener(u,(s=a,function(){var e=this;e.readyState>3&&!s.resolved&&(s.resolved=!0,n.emit("xhr-resolved",[],e)),i.inPlace(e,d,"fn-",y)}),(0,A.jT)(!1))}catch(t){(0,e.R)(15,t);try{n.emit("internal-error",[t])}catch(e){}}var s;return r};function h(e,t){i.inPlace(t,["onreadystatechange"],"fn-",y)}if(function(e,t){for(var r in e)t[r]=e[r]}(o,f),f.prototype=o.prototype,i.inPlace(f.prototype,q,"-xhr-",y),n.on("send-xhr-start",(function(e,t){h(e,t),function(e){l.push(e),a&&(g?g.then(b):c?c(b):(m=-m,v.data=m))}(t)})),n.on("open-xhr-start",h),a){var g=s&&s.resolve();if(!c&&!s){var m=1,v=document.createTextNode(m);new a(b).observe(v,{characterData:!0})}}else r.on("fn-end",(function(e){e[0]&&e[0].type===u||b()}));function b(){for(var e=0;e<l.length;e++)h(0,l[e]);l.length&&(l=[])}function y(e,t){return t}return n}var Y="fetch-",X=Y+"body-",J=["arrayBuffer","blob","json","text","formData"],Q=p.gm.Request,ee=p.gm.Response,te="prototype";const re={};function ne(e){const t=function(e){return(e||B.ee).get("fetch")}(e);if(!(Q&&ee&&p.gm.fetch))return t;if(re[t.debugId]++)return t;function r(e,r,n){var i=e[r];"function"==typeof i&&(e[r]=function(){var e,r=[...arguments],o={};t.emit(n+"before-start",[r],o),o[B.P]&&o[B.P].dt&&(e=o[B.P].dt);var a=i.apply(this,r);return t.emit(n+"start",[r,e],a),a.then((function(e){return t.emit(n+"end",[null,e],a),e}),(function(e){throw t.emit(n+"end",[e],a),e}))})}return re[t.debugId]=1,J.forEach((e=>{r(Q[te],e,X),r(ee[te],e,X)})),r(p.gm,"fetch",Y),t.on(Y+"end",(function(e,r){var n=this;if(r){var i=r.headers.get("content-length");null!==i&&(n.rxSize=i),t.emit(Y+"done",[null,r],n)}else t.emit(Y+"done",[e],n)})),t}var ie=i(7485),oe=i(5603);class ae{constructor(e){this.agentIdentifier=e}generateTracePayload(e){if(!this.shouldGenerateTrace(e))return null;var t=(0,oe.o)(this.agentIdentifier);if(!t)return null;var n=(t.accountID||"").toString()||null,i=(t.agentID||"").toString()||null,o=(t.trustKey||"").toString()||null;if(!n||!i)return null;var a=(0,r.ZF)(),s=(0,r.el)(),c=Date.now(),u={spanId:a,traceId:s,timestamp:c};return(e.sameOrigin||this.isAllowedOrigin(e)&&this.useTraceContextHeadersForCors())&&(u.traceContextParentHeader=this.generateTraceContextParentHeader(a,s),u.traceContextStateHeader=this.generateTraceContextStateHeader(a,c,n,i,o)),(e.sameOrigin&&!this.excludeNewrelicHeader()||!e.sameOrigin&&this.isAllowedOrigin(e)&&this.useNewrelicHeaderForCors())&&(u.newrelicHeader=this.generateTraceHeader(a,s,c,n,i,o)),u}generateTraceContextParentHeader(e,t){return"00-"+t+"-"+e+"-01"}generateTraceContextStateHeader(e,t,r,n,i){return i+"@nr=0-1-"+r+"-"+n+"-"+e+"----"+t}generateTraceHeader(e,t,r,n,i,o){if(!("function"==typeof p.gm?.btoa))return null;var a={v:[0,1],d:{ty:"Browser",ac:n,ap:i,id:e,tr:t,ti:r}};return o&&n!==o&&(a.d.tk=o),btoa((0,j.A)(a))}shouldGenerateTrace(e){return this.isDtEnabled()&&this.isAllowedOrigin(e)}isAllowedOrigin(e){var t=!1,r={};if((0,s.gD)(this.agentIdentifier,"distributed_tracing")&&(r=(0,s.D0)(this.agentIdentifier).distributed_tracing),e.sameOrigin)t=!0;else if(r.allowed_origins instanceof Array)for(var n=0;n<r.allowed_origins.length;n++){var i=(0,ie.D)(r.allowed_origins[n]);if(e.hostname===i.hostname&&e.protocol===i.protocol&&e.port===i.port){t=!0;break}}return t}isDtEnabled(){var e=(0,s.gD)(this.agentIdentifier,"distributed_tracing");return!!e&&!!e.enabled}excludeNewrelicHeader(){var e=(0,s.gD)(this.agentIdentifier,"distributed_tracing");return!!e&&!!e.exclude_newrelic_header}useNewrelicHeaderForCors(){var e=(0,s.gD)(this.agentIdentifier,"distributed_tracing");return!!e&&!1!==e.cors_use_newrelic_header}useTraceContextHeadersForCors(){var e=(0,s.gD)(this.agentIdentifier,"distributed_tracing");return!!e&&!!e.cors_use_tracecontext_headers}}var se=i(9300),ce=i(7295),ue=["load","error","abort","timeout"],de=ue.length,le=(0,R.dV)().o.REQ,fe=(0,R.dV)().o.XHR;class he extends b{static featureName=se.T;constructor(e,t=!0){super(e,se.T,t),this.dt=new ae(e.agentIdentifier),this.handler=(e,t,r,n)=>(0,x.p)(e,t,r,n,this.ee);try{const e={xmlhttprequest:"xhr",fetch:"fetch",beacon:"beacon"};p.gm?.performance?.getEntriesByType("resource").forEach((t=>{if(t.initiatorType in e&&0!==t.responseStatus){const r={status:t.responseStatus},n={rxSize:t.transferSize,duration:Math.floor(t.duration),cbTime:0};pe(r,t.name),this.handler("xhr",[r,n,t.startTime,t.responseEnd,e[t.initiatorType]],void 0,a.K7.ajax)}}))}catch(e){}ne(this.ee),Z(this.ee),function(e,t,r,n){function i(e){var t=this;t.totalCbs=0,t.called=0,t.cbTime=0,t.end=R,t.ended=!1,t.xhrGuids={},t.lastSize=null,t.loadCaptureCalled=!1,t.params=this.params||{},t.metrics=this.metrics||{},e.addEventListener("load",(function(r){T(t,e)}),(0,A.jT)(!1)),p.lR||e.addEventListener("progress",(function(e){t.lastSize=e.loaded}),(0,A.jT)(!1))}function o(e){this.params={method:e[0]},pe(this,e[1]),this.metrics={}}function s(t,r){e.loader_config.xpid&&this.sameOrigin&&r.setRequestHeader("X-NewRelic-ID",e.loader_config.xpid);var i=n.generateTracePayload(this.parsedOrigin);if(i){var o=!1;i.newrelicHeader&&(r.setRequestHeader("newrelic",i.newrelicHeader),o=!0),i.traceContextParentHeader&&(r.setRequestHeader("traceparent",i.traceContextParentHeader),i.traceContextStateHeader&&r.setRequestHeader("tracestate",i.traceContextStateHeader),o=!0),o&&(this.dt=i)}}function c(e,r){var n=this.metrics,i=e[0],o=this;if(n&&i){var a=G(i);a&&(n.txSize=a)}this.startTime=(0,S.t)(),this.body=i,this.listener=function(e){try{"abort"!==e.type||o.loadCaptureCalled||(o.params.aborted=!0),("load"!==e.type||o.called===o.totalCbs&&(o.onloadCalled||"function"!=typeof r.onload)&&"function"==typeof o.end)&&o.end(r)}catch(e){try{t.emit("internal-error",[e])}catch(e){}}};for(var s=0;s<de;s++)r.addEventListener(ue[s],this.listener,(0,A.jT)(!1))}function u(e,t,r){this.cbTime+=e,t?this.onloadCalled=!0:this.called+=1,this.called!==this.totalCbs||!this.onloadCalled&&"function"==typeof r.onload||"function"!=typeof this.end||this.end(r)}function d(e,t){var r=""+V(e)+!!t;this.xhrGuids&&!this.xhrGuids[r]&&(this.xhrGuids[r]=!0,this.totalCbs+=1)}function l(e,t){var r=""+V(e)+!!t;this.xhrGuids&&this.xhrGuids[r]&&(delete this.xhrGuids[r],this.totalCbs-=1)}function f(){this.endTime=(0,S.t)()}function h(e,r){r instanceof fe&&"load"===e[0]&&t.emit("xhr-load-added",[e[1],e[2]],r)}function g(e,r){r instanceof fe&&"load"===e[0]&&t.emit("xhr-load-removed",[e[1],e[2]],r)}function m(e,t,r){t instanceof fe&&("onload"===r&&(this.onload=!0),("load"===(e[0]&&e[0].type)||this.onload)&&(this.xhrCbStart=(0,S.t)()))}function v(e,r){this.xhrCbStart&&t.emit("xhr-cb-time",[(0,S.t)()-this.xhrCbStart,this.onload,r],r)}function b(e){var t,r=e[1]||{};if("string"==typeof e[0]?0===(t=e[0]).length&&p.RI&&(t=""+p.gm.location.href):e[0]&&e[0].url?t=e[0].url:p.gm?.URL&&e[0]&&e[0]instanceof URL?t=e[0].href:"function"==typeof e[0].toString&&(t=e[0].toString()),"string"==typeof t&&0!==t.length){t&&(this.parsedOrigin=(0,ie.D)(t),this.sameOrigin=this.parsedOrigin.sameOrigin);var i=n.generateTracePayload(this.parsedOrigin);if(i&&(i.newrelicHeader||i.traceContextParentHeader))if(e[0]&&e[0].headers)s(e[0].headers,i)&&(this.dt=i);else{var o={};for(var a in r)o[a]=r[a];o.headers=new Headers(r.headers||{}),s(o.headers,i)&&(this.dt=i),e.length>1?e[1]=o:e.push(o)}}function s(e,t){var r=!1;return t.newrelicHeader&&(e.set("newrelic",t.newrelicHeader),r=!0),t.traceContextParentHeader&&(e.set("traceparent",t.traceContextParentHeader),t.traceContextStateHeader&&e.set("tracestate",t.traceContextStateHeader),r=!0),r}}function y(e,t){this.params={},this.metrics={},this.startTime=(0,S.t)(),this.dt=t,e.length>=1&&(this.target=e[0]),e.length>=2&&(this.opts=e[1]);var r,n=this.opts||{},i=this.target;"string"==typeof i?r=i:"object"==typeof i&&i instanceof le?r=i.url:p.gm?.URL&&"object"==typeof i&&i instanceof URL&&(r=i.href),pe(this,r);var o=(""+(i&&i instanceof le&&i.method||n.method||"GET")).toUpperCase();this.params.method=o,this.body=n.body,this.txSize=G(n.body)||0}function w(e,t){if(this.endTime=(0,S.t)(),this.params||(this.params={}),(0,ce.iW)(this.params))return;let n;this.params.status=t?t.status:0,"string"==typeof this.rxSize&&this.rxSize.length>0&&(n=+this.rxSize);const i={txSize:this.txSize,rxSize:n,duration:(0,S.t)()-this.startTime};r("xhr",[this.params,i,this.startTime,this.endTime,"fetch"],this,a.K7.ajax)}function R(e){const t=this.params,n=this.metrics;if(!this.ended){this.ended=!0;for(let t=0;t<de;t++)e.removeEventListener(ue[t],this.listener,!1);t.aborted||(0,ce.iW)(t)||(n.duration=(0,S.t)()-this.startTime,this.loadCazptureCalled||4!==e.readyState?null==t.status&&(t.status=0):T(this,e),n.cbTime=this.cbTime,r("xhr",[t,n,this.startTime,this.endTime,"xhr"],this,a.K7.ajax))}}function T(e,r){e.params.status=r.status;var n=function(e,t){var r=e.responseType;return"json"===r&&null!==t?t:"arraybuffer"===r||"blob"===r||"json"===r?G(e.response):"text"===r||""===r||void 0===r?G(e.responseText):void 0}(r,e.lastSize);if(n&&(e.metrics.rxSize=n),e.sameOrigin){var i=r.getResponseHeader("X-NewRelic-App-Data");i&&((0,x.p)(O.rs,["Ajax/CrossApplicationTracing/Header/Seen"],void 0,a.K7.metrics,t),e.params.cat=i.split(", ").pop())}e.loadCaptureCalled=!0}t.on("new-xhr",i),t.on("open-xhr-start",o),t.on("open-xhr-end",s),t.on("send-xhr-start",c),t.on("xhr-cb-time",u),t.on("xhr-load-added",d),t.on("xhr-load-removed",l),t.on("xhr-resolved",f),t.on("addEventListener-end",h),t.on("removeEventListener-end",g),t.on("fn-end",v),t.on("fetch-before-start",b),t.on("fetch-start",y),t.on("fn-start",m),t.on("fetch-done",w)}(e,this.ee,this.handler,this.dt),this.importAggregator(e)}}function pe(e,t){var r=(0,ie.D)(t),n=e.params||e;n.hostname=r.hostname,n.port=r.port,n.protocol=r.protocol,n.host=r.hostname+":"+r.port,n.pathname=r.pathname,e.parsedOrigin=r,e.sameOrigin=r.sameOrigin}const ge={},me=["pushState","replaceState"];function ve(e){const t=function(e){return(e||B.ee).get("history")}(e);return!p.RI||ge[t.debugId]++||(ge[t.debugId]=1,(0,W.YM)(t).inPlace(window.history,me,"-")),t}var be=i(3738);const{He:ye,bD:we,d3:Re,Kp:xe,TZ:Te,Lc:Ae,uP:Ee,Rz:Se}=be;class Ne extends b{static featureName=Te;constructor(e,t=!0){super(e,Te,t);if(!(0,m.V)(this.agentIdentifier))return void this.deregisterDrain();const r=this.ee;let n;ve(r),this.eventsEE=(0,F.u)(r),this.eventsEE.on(Ee,(function(e,t){this.bstStart=(0,S.t)()})),this.eventsEE.on(Ae,(function(e,t){(0,x.p)("bst",[e[0],t,this.bstStart,(0,S.t)()],void 0,a.K7.sessionTrace,r)})),r.on(Se+Re,(function(e){this.time=(0,S.t)(),this.startPath=location.pathname+location.hash})),r.on(Se+xe,(function(e){(0,x.p)("bstHist",[location.pathname+location.hash,this.startPath,this.time],void 0,a.K7.sessionTrace,r)}));try{n=new PerformanceObserver((e=>{const t=e.getEntries();(0,x.p)(ye,[t],void 0,a.K7.sessionTrace,r)})),n.observe({type:we,buffered:!0})}catch(e){}this.importAggregator(e,{resourceObserver:n})}}var Oe=i(2614);class _e extends b{static featureName=t.TZ;#i;#o;constructor(e,r=!0){let n;super(e,t.TZ,r),this.replayRunning=!1,this.#o=e;try{n=JSON.parse(localStorage.getItem("".concat(Oe.H3,"_").concat(Oe.uh)))}catch(e){}(0,g.SR)(e.agentIdentifier)&&this.ee.on(t.G4.RECORD,(()=>this.#a())),this.#s(n)?(this.#i=n?.sessionReplayMode,this.#c()):this.importAggregator(e),this.ee.on("err",(e=>{this.replayRunning&&(this.errorNoticed=!0,(0,x.p)(t.G4.ERROR_DURING_REPLAY,[e],void 0,this.featureName,this.ee))})),this.ee.on(t.G4.REPLAY_RUNNING,(e=>{this.replayRunning=e}))}#s(e){return e&&(e.sessionReplayMode===Oe.g.FULL||e.sessionReplayMode===Oe.g.ERROR)||(0,g.Aw)(this.agentIdentifier)}#u=!1;async#c(e){if(!this.#u){this.#u=!0;try{const{Recorder:t}=await Promise.all([i.e(478),i.e(249)]).then(i.bind(i,8589));this.recorder??=new t({mode:this.#i,agentIdentifier:this.agentIdentifier,trigger:e,ee:this.ee}),this.recorder.startRecording(),this.abortHandler=this.recorder.stopRecording}catch(e){}this.importAggregator(this.#o,{recorder:this.recorder,errorNoticed:this.errorNoticed})}}#a(){this.featAggregate?this.featAggregate.mode!==Oe.g.FULL&&this.featAggregate.initializeRecording(Oe.g.FULL,!0):(this.#i=Oe.g.FULL,this.#c(t.Qb.API),this.recorder&&this.recorder.parent.mode!==Oe.g.FULL&&(this.recorder.parent.mode=Oe.g.FULL,this.recorder.stopRecording(),this.recorder.startRecording(),this.abortHandler=this.recorder.stopRecording))}}var Ie=i(3962);class je extends b{static featureName=Ie.TZ;constructor(e,t=!0){if(super(e,Ie.TZ,t),!p.RI||!(0,R.dV)().o.MO)return;const r=ve(this.ee);Ie.tC.forEach((e=>{(0,A.sp)(e,(e=>{a(e)}),!0)}));const n=()=>(0,x.p)("newURL",[(0,S.t)(),""+window.location],void 0,this.featureName,this.ee);r.on("pushState-end",n),r.on("replaceState-end",n);try{this.removeOnAbort=new AbortController}catch(e){}(0,A.sp)("popstate",(e=>(0,x.p)("newURL",[e.timeStamp,""+window.location],void 0,this.featureName,this.ee)),!0,this.removeOnAbort?.signal);let i=!1;const o=new((0,R.dV)().o.MO)(((e,t)=>{i||(i=!0,requestAnimationFrame((()=>{(0,x.p)("newDom",[(0,S.t)()],void 0,this.featureName,this.ee),i=!1})))})),a=(0,v.s)((e=>{(0,x.p)("newUIEvent",[e],void 0,this.featureName,this.ee),o.observe(document.body,{attributes:!0,childList:!0,subtree:!0,characterData:!0})}),100,{leading:!0});this.abortHandler=function(){this.removeOnAbort?.abort(),o.disconnect(),this.abortHandler=void 0},this.importAggregator(e,{domObserver:o})}}var Pe=i(7378);const Ce={},ke=["appendChild","insertBefore","replaceChild"];function Le(e){const t=function(e){return(e||B.ee).get("jsonp")}(e);if(!p.RI||Ce[t.debugId])return t;Ce[t.debugId]=!0;var r=(0,W.YM)(t),n=/[?&](?:callback|cb)=([^&#]+)/,i=/(.*)\.([^.]+)/,o=/^(\w+)(\.|$)(.*)$/;function a(e,t){if(!e)return t;const r=e.match(o),n=r[1];return a(r[3],t[n])}return r.inPlace(Node.prototype,ke,"dom-"),t.on("dom-start",(function(e){!function(e){if(!e||"string"!=typeof e.nodeName||"script"!==e.nodeName.toLowerCase())return;if("function"!=typeof e.addEventListener)return;var o=(s=e.src,c=s.match(n),c?c[1]:null);var s,c;if(!o)return;var u=function(e){var t=e.match(i);if(t&&t.length>=3)return{key:t[2],parent:a(t[1],window)};return{key:e,parent:window}}(o);if("function"!=typeof u.parent[u.key])return;var d={};function l(){t.emit("jsonp-end",[],d),e.removeEventListener("load",l,(0,A.jT)(!1)),e.removeEventListener("error",f,(0,A.jT)(!1))}function f(){t.emit("jsonp-error",[],d),t.emit("jsonp-end",[],d),e.removeEventListener("load",l,(0,A.jT)(!1)),e.removeEventListener("error",f,(0,A.jT)(!1))}r.inPlace(u.parent,[u.key],"cb-",d),e.addEventListener("load",l,(0,A.jT)(!1)),e.addEventListener("error",f,(0,A.jT)(!1)),t.emit("new-jsonp",[e.src],d)}(e[0])})),t}const He={};function De(e){const t=function(e){return(e||B.ee).get("promise")}(e);if(He[t.debugId])return t;He[t.debugId]=!0;var r=t.context,n=(0,W.YM)(t),i=p.gm.Promise;return i&&function(){function e(r){var o=t.context(),a=n(r,"executor-",o,null,!1);const s=Reflect.construct(i,[a],e);return t.context(s).getCtx=function(){return o},s}p.gm.Promise=e,Object.defineProperty(e,"name",{value:"Promise"}),e.toString=function(){return i.toString()},Object.setPrototypeOf(e,i),["all","race"].forEach((function(r){const n=i[r];e[r]=function(e){let i=!1;[...e||[]].forEach((e=>{this.resolve(e).then(a("all"===r),a(!1))}));const o=n.apply(this,arguments);return o;function a(e){return function(){t.emit("propagate",[null,!i],o,!1,!1),i=i||!e}}}})),["resolve","reject"].forEach((function(r){const n=i[r];e[r]=function(e){const r=n.apply(this,arguments);return e!==r&&t.emit("propagate",[e,!0],r,!1,!1),r}})),e.prototype=i.prototype;const o=i.prototype.then;i.prototype.then=function(...e){var i=this,a=r(i);a.promise=i,e[0]=n(e[0],"cb-",a,null,!1),e[1]=n(e[1],"cb-",a,null,!1);const s=o.apply(this,e);return a.nextPromise=s,t.emit("propagate",[i,!0],s,!1,!1),s},i.prototype.then[W.Jt]=o,t.on("executor-start",(function(e){e[0]=n(e[0],"resolve-",this,null,!1),e[1]=n(e[1],"resolve-",this,null,!1)})),t.on("executor-err",(function(e,t,r){e[1](r)})),t.on("cb-end",(function(e,r,n){t.emit("propagate",[n,!0],this.nextPromise,!1,!1)})),t.on("propagate",(function(e,r,n){this.getCtx&&!r||(this.getCtx=function(){if(e instanceof Promise)var r=t.context(e);return r&&r.getCtx?r.getCtx():this})}))}(),t}const Me={},Ke="setTimeout",Ue="setInterval",Ve="clearTimeout",Ge="-start",Fe=[Ke,"setImmediate",Ue,Ve,"clearImmediate"];function Be(e){const t=function(e){return(e||B.ee).get("timer")}(e);if(Me[t.debugId]++)return t;Me[t.debugId]=1;var r=(0,W.YM)(t);return r.inPlace(p.gm,Fe.slice(0,2),Ke+"-"),r.inPlace(p.gm,Fe.slice(2,3),Ue+"-"),r.inPlace(p.gm,Fe.slice(3),Ve+"-"),t.on(Ue+Ge,(function(e,t,n){e[0]=r(e[0],"fn-",null,n)})),t.on(Ke+Ge,(function(e,t,n){this.method=n,this.timerDuration=isNaN(e[1])?0:+e[1],e[0]=r(e[0],"fn-",this,n)})),t}const We={};function ze(e){const t=function(e){return(e||B.ee).get("mutation")}(e);if(!p.RI||We[t.debugId])return t;We[t.debugId]=!0;var r=(0,W.YM)(t),n=p.gm.MutationObserver;return n&&(window.MutationObserver=function(e){return this instanceof n?new n(r(e,"fn-")):n.apply(this,arguments)},MutationObserver.prototype=n.prototype),t}const{TZ:qe,d3:Ze,Kp:Ye,$p:Xe,wW:Je,e5:Qe,tH:$e,uP:et,rw:tt,Lc:rt}=Pe;class nt extends b{static featureName=qe;constructor(e,t=!0){if(super(e,qe,t),!p.RI)return;try{this.removeOnAbort=new AbortController}catch(e){}let r,n=0;const i=this.ee.get("tracer"),o=Le(this.ee),a=De(this.ee),s=Be(this.ee),c=Z(this.ee),u=this.ee.get("events"),d=ne(this.ee),l=ve(this.ee),f=ze(this.ee);function h(e,t){l.emit("newURL",[""+window.location,t])}function g(){n++,r=window.location.hash,this[et]=(0,S.t)()}function m(){n--,window.location.hash!==r&&h(0,!0);var e=(0,S.t)();this[Qe]=~~this[Qe]+e-this[et],this[rt]=e}function v(e,t){e.on(t,(function(){this[t]=(0,S.t)()}))}this.ee.on(et,g),a.on(tt,g),o.on(tt,g),this.ee.on(rt,m),a.on(Je,m),o.on(Je,m),this.ee.on("fn-err",((...t)=>{t[2]?.__newrelic?.[e.agentIdentifier]||(0,x.p)("function-err",[...t],void 0,this.featureName,this.ee)})),this.ee.buffer([et,rt,"xhr-resolved"],this.featureName),u.buffer([et],this.featureName),s.buffer(["setTimeout"+Ye,"clearTimeout"+Ze,et],this.featureName),c.buffer([et,"new-xhr","send-xhr"+Ze],this.featureName),d.buffer([$e+Ze,$e+"-done",$e+Xe+Ze,$e+Xe+Ye],this.featureName),l.buffer(["newURL"],this.featureName),f.buffer([et],this.featureName),a.buffer(["propagate",tt,Je,"executor-err","resolve"+Ze],this.featureName),i.buffer([et,"no-"+et],this.featureName),o.buffer(["new-jsonp","cb-start","jsonp-error","jsonp-end"],this.featureName),v(d,$e+Ze),v(d,$e+"-done"),v(o,"new-jsonp"),v(o,"jsonp-end"),v(o,"cb-start"),l.on("pushState-end",h),l.on("replaceState-end",h),window.addEventListener("hashchange",h,(0,A.jT)(!0,this.removeOnAbort?.signal)),window.addEventListener("load",h,(0,A.jT)(!0,this.removeOnAbort?.signal)),window.addEventListener("popstate",(function(){h(0,n>1)}),(0,A.jT)(!0,this.removeOnAbort?.signal)),this.abortHandler=this.#n,this.importAggregator(e)}#n(){this.removeOnAbort?.abort(),this.abortHandler=void 0}}var it=i(3333);class ot extends b{static featureName=it.TZ;constructor(e,t=!0){super(e,it.TZ,t);const r=[e.init.page_action.enabled,e.init.performance.capture_marks,e.init.performance.capture_measures,e.init.user_actions.enabled];p.RI&&e.init.user_actions.enabled&&(it.Zp.forEach((e=>(0,A.sp)(e,(e=>(0,x.p)("ua",[e],void 0,this.featureName,this.ee)),!0))),it.qN.forEach((e=>(0,A.sp)(e,(e=>(0,x.p)("ua",[e],void 0,this.featureName,this.ee)))))),r.some((e=>e))?this.importAggregator(e):this.deregisterDrain()}}var at=i(993),st=i(3785);class ct extends b{static featureName=at.TZ;constructor(e,t=!0){super(e,at.TZ,t);const r=this.ee;this.ee.on("wrap-logger-end",(function([e]){const{level:t,customAttributes:n}=this;(0,st.R)(r,e,n,t)})),this.importAggregator(e)}}new class extends o{constructor(t,r){super(r),p.gm?(this.features={},(0,R.bQ)(this.agentIdentifier,this),this.desiredFeatures=new Set(t.features||[]),this.desiredFeatures.add(w),this.runSoftNavOverSpa=[...this.desiredFeatures].some((e=>e.featureName===a.K7.softNav)),(0,d.j)(this,t,t.loaderType||"agent"),this.run()):(0,e.R)(21)}get config(){return{info:this.info,init:this.init,loader_config:this.loader_config,runtime:this.runtime}}run(){try{const t=u(this.agentIdentifier),r=[...this.desiredFeatures];r.sort(((e,t)=>a.P3[e.featureName]-a.P3[t.featureName])),r.forEach((r=>{if(!t[r.featureName]&&r.featureName!==a.K7.pageViewEvent)return;if(this.runSoftNavOverSpa&&r.featureName===a.K7.spa)return;if(!this.runSoftNavOverSpa&&r.featureName===a.K7.softNav)return;const n=function(e){switch(e){case a.K7.ajax:return[a.K7.jserrors];case a.K7.sessionTrace:return[a.K7.ajax,a.K7.pageViewEvent];case a.K7.sessionReplay:return[a.K7.sessionTrace];case a.K7.pageViewTiming:return[a.K7.pageViewEvent];default:return[]}}(r.featureName).filter((e=>!(e in this.features)));n.length>0&&(0,e.R)(36,{targetFeature:r.featureName,missingDependencies:n}),this.features[r.featureName]=new r(this)}))}catch(t){(0,e.R)(22,t);for(const e in this.features)this.features[e].abortHandler?.();const r=(0,R.Zm)();delete r.initializedAgents[this.agentIdentifier]?.api,delete r.initializedAgents[this.agentIdentifier]?.features,delete this.sharedAggregator;return r.ee.get(this.agentIdentifier).abort(),!1}}}({features:[he,w,N,Ne,_e,_,D,ot,ct,je,nt],loaderType:"spa"})})()})();</script> <meta name="viewport" content="width=device-width, initial-scale=1" /> <link rel="preload" href="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/fonts/ivar/AlfredSerifText-Regular.woff2" as="font" type="font/woff2" crossorigin="anonymous"> <link rel="preload" href="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/fonts/alfred/AlfredSans-Regular.woff2" as="font" type="font/woff2" crossorigin="anonymous"> <link rel="profile" href="http://gmpg.org/xfn/11"> <script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script> <meta name='robots' content='index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1' />  <title>Nobel Prize in Physics 1955 - Presentation Speech - NobelPrize.org</title> <meta property="og:locale" content="en_US" /> <meta property="og:type" content="website" /> <meta property="og:site_name" content="NobelPrize.org" /> <meta name="twitter:card" content="summary_large_image" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebSite","@id":"https://www.nobelprize.org/#website","url":"https://www.nobelprize.org/","name":"NobelPrize.org","description":"The official website of the Nobel Prize","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://www.nobelprize.org/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"}]}</script>  <link rel='dns-prefetch' href='//www.nobelprize.org' /> <link rel='dns-prefetch' href='//stats.wp.com' /> <link rel='stylesheet' id='mediaelement-css' href='https://www.nobelprize.org/wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css?ver=4.2.17' type='text/css' media='all' /> <link rel='stylesheet' id='wp-mediaelement-css' href='https://www.nobelprize.org/wp-includes/js/mediaelement/wp-mediaelement.min.css?ver=6.6.2' type='text/css' media='all' /> <style id='jetpack-sharing-buttons-style-inline-css' type='text/css'> .jetpack-sharing-buttons__services-list{display:flex;flex-direction:row;flex-wrap:wrap;gap:0;list-style-type:none;margin:5px;padding:0}.jetpack-sharing-buttons__services-list.has-small-icon-size{font-size:12px}.jetpack-sharing-buttons__services-list.has-normal-icon-size{font-size:16px}.jetpack-sharing-buttons__services-list.has-large-icon-size{font-size:24px}.jetpack-sharing-buttons__services-list.has-huge-icon-size{font-size:36px}@media print{.jetpack-sharing-buttons__services-list{display:none!important}}.editor-styles-wrapper .wp-block-jetpack-sharing-buttons{gap:0;padding-inline-start:0}ul.jetpack-sharing-buttons__services-list.has-background{padding:1.25em 2.375em} </style> <style id='global-styles-inline-css' type='text/css'> :root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #2e2a25;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--color--black-400: #969492;--wp--preset--color--grey-500: #8a8a8d;--wp--preset--color--grey-400: #c8c8c8;--wp--preset--color--grey-100: #f1f1f1;--wp--preset--color--nobel-gold: #cc9b40;--wp--preset--color--nobel-pale: #f2f0ee;--wp--preset--color--nobel-smoke: #f9f5ed;--wp--preset--color--blue-700: #004b87;--wp--preset--color--blue-500: #3880c3;--wp--preset--color--blue-400: #a0c5d8;--wp--preset--color--blue-300: #c2ced9;--wp--preset--color--blue-100: #ebf2f8;--wp--preset--color--red: #bc1836;--wp--preset--color--green-100: #eaefed;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.682), 20px);--wp--preset--font-size--large: clamp(22.041px, 1.378rem + ((1vw - 3.2px) * 1.586), 36px);--wp--preset--font-size--x-large: clamp(25.014px, 1.563rem + ((1vw - 3.2px) * 1.93), 42px);--wp--preset--font-size--14: 0.875rem;--wp--preset--font-size--15: clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.115), 0.938rem);--wp--preset--font-size--16: clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.227), 1rem);--wp--preset--font-size--18: clamp(0.875rem, 0.875rem + ((1vw - 0.2rem) * 0.455), 1.125rem);--wp--preset--font-size--22: clamp(0.915rem, 0.915rem + ((1vw - 0.2rem) * 0.836), 1.375rem);--wp--preset--font-size--24: clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.938), 1.5rem);--wp--preset--font-size--32: clamp(1.5rem, 1.5rem + ((1vw - 0.2rem) * 0.909), 2rem);--wp--preset--font-size--48: clamp(2rem, 2rem + ((1vw - 0.2rem) * 1.818), 3rem);--wp--preset--font-size--100: clamp(4rem, 4rem + ((1vw - 0.2rem) * 4.091), 6.25rem);--wp--preset--font-family--primary: 'Alfred Sans Regular', 'Helvetica Neue', 'Arial', sans-serif;--wp--preset--font-family--secondary: 'Alfred Serif Regular', 'Times', 'Times New Roman', serif;--wp--preset--spacing--20: 0.5rem;--wp--preset--spacing--30: 1rem;--wp--preset--spacing--40: 1.25rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2rem;--wp--preset--spacing--70: 2.5rem;--wp--preset--spacing--80: 3rem;--wp--preset--spacing--10: 0.25rem;--wp--preset--spacing--90: 3.5rem;--wp--preset--spacing--100: 4rem;--wp--preset--spacing--110: 4.5rem;--wp--preset--spacing--120: 5rem;--wp--preset--spacing--130: 5.5rem;--wp--preset--spacing--140: 6rem;--wp--preset--spacing--150: 6.5rem;--wp--preset--spacing--160: 7rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);--wp--custom--image-ratio--regular: 3/2;--wp--custom--image-ratio--landscape: 16/9;--wp--custom--image-ratio--portrait: 2/3;--wp--custom--line-height--xs: 1;--wp--custom--line-height--s: 1.125;--wp--custom--line-height--sm: 1.25;--wp--custom--line-height--m: 1.3;--wp--custom--line-height--l: 1.4;--wp--custom--line-height--xl: 1.5;--wp--custom--font-variant--heading--1--font-size: var(--wp--preset--font-size--48);--wp--custom--font-variant--heading--1--line-height: var(--wp--custom--line-height--xs);--wp--custom--font-variant--heading--1--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--heading--2--font-size: var(--wp--preset--font-size--32);--wp--custom--font-variant--heading--2--line-height: var(--wp--custom--line-height--s);--wp--custom--font-variant--heading--2--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--heading--3--font-size: var(--wp--preset--font-size--24);--wp--custom--font-variant--heading--3--line-height: var(--wp--custom--line-height--s);--wp--custom--font-variant--heading--3--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--heading--4--font-size: var(--wp--preset--font-size--18);--wp--custom--font-variant--heading--4--line-height: var(--wp--custom--line-height--sm);--wp--custom--font-variant--heading--4--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--heading--5--font-size: var(--wp--preset--font-size--16);--wp--custom--font-variant--heading--5--line-height: var(--wp--custom--line-height--m);--wp--custom--font-variant--heading--5--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--heading--6--font-size: var(--wp--preset--font-size--15);--wp--custom--font-variant--heading--6--line-height: var(--wp--custom--line-height--xl);--wp--custom--font-variant--heading--6--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--paragraph--xsmall--font-size: var(--wp--preset--font-size--14);--wp--custom--font-variant--paragraph--xsmall--line-height: var(--wp--custom--line-height--l);--wp--custom--font-variant--paragraph--xsmall--font-family: var(--wp--preset--font-family--secondary);--wp--custom--font-variant--paragraph--small--font-size: var(--wp--preset--font-size--16);--wp--custom--font-variant--paragraph--small--line-height: var(--wp--custom--line-height--l);--wp--custom--font-variant--paragraph--small--font-family: var(--wp--preset--font-family--secondary);--wp--custom--font-variant--paragraph--medium--font-size: var(--wp--preset--font-size--18);--wp--custom--font-variant--paragraph--medium--line-height: var(--wp--custom--line-height--m);--wp--custom--font-variant--paragraph--medium--font-family: var(--wp--preset--font-family--secondary);--wp--custom--font-variant--paragraph--large--font-size: var(--wp--preset--font-size--22);--wp--custom--font-variant--paragraph--large--line-height: var(--wp--custom--line-height--m);--wp--custom--font-variant--paragraph--large--font-family: var(--wp--preset--font-family--secondary);--wp--custom--font-variant--button--small--font-size: var(--wp--preset--font-size--14);--wp--custom--font-variant--button--small--line-height: var(--wp--custom--line-height--sm);--wp--custom--font-variant--button--small--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--button--large--font-size: var(--wp--preset--font-size--16);--wp--custom--font-variant--button--large--line-height: var(--wp--custom--line-height--sm);--wp--custom--font-variant--button--large--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--info--counters--font-size: var(--wp--preset--font-size--100);--wp--custom--font-variant--info--counters--line-height: var(--wp--custom--line-height--xs);--wp--custom--font-variant--info--counters--font-family: var(--wp--preset--font-family--primary);--wp--custom--font-variant--info--legal--font-size: var(--wp--preset--font-size--14);--wp--custom--font-variant--info--legal--line-height: var(--wp--custom--line-height--l);--wp--custom--font-variant--info--legal--font-family: var(--wp--preset--font-family--primary);}.wp-block-nobel-prize-queried-content{--wp--preset--color--grey-100: #f1f1f1;--wp--preset--color--nobel-pale: #f2f0ee;--wp--preset--color--nobel-smoke: #f9f5ed;--wp--preset--color--blue-100: #ebf2f8;--wp--preset--color--green-100: #eaefed;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-400-color{color: var(--wp--preset--color--black-400) !important;}.has-grey-500-color{color: var(--wp--preset--color--grey-500) !important;}.has-grey-400-color{color: var(--wp--preset--color--grey-400) !important;}.has-grey-100-color{color: var(--wp--preset--color--grey-100) !important;}.has-nobel-gold-color{color: var(--wp--preset--color--nobel-gold) !important;}.has-nobel-pale-color{color: var(--wp--preset--color--nobel-pale) !important;}.has-nobel-smoke-color{color: var(--wp--preset--color--nobel-smoke) !important;}.has-blue-700-color{color: var(--wp--preset--color--blue-700) !important;}.has-blue-500-color{color: var(--wp--preset--color--blue-500) !important;}.has-blue-400-color{color: var(--wp--preset--color--blue-400) !important;}.has-blue-300-color{color: var(--wp--preset--color--blue-300) !important;}.has-blue-100-color{color: var(--wp--preset--color--blue-100) !important;}.has-red-color{color: var(--wp--preset--color--red) !important;}.has-green-100-color{color: var(--wp--preset--color--green-100) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-400-background-color{background-color: var(--wp--preset--color--black-400) !important;}.has-grey-500-background-color{background-color: var(--wp--preset--color--grey-500) !important;}.has-grey-400-background-color{background-color: var(--wp--preset--color--grey-400) !important;}.has-grey-100-background-color{background-color: var(--wp--preset--color--grey-100) !important;}.has-nobel-gold-background-color{background-color: var(--wp--preset--color--nobel-gold) !important;}.has-nobel-pale-background-color{background-color: var(--wp--preset--color--nobel-pale) !important;}.has-nobel-smoke-background-color{background-color: var(--wp--preset--color--nobel-smoke) !important;}.has-blue-700-background-color{background-color: var(--wp--preset--color--blue-700) !important;}.has-blue-500-background-color{background-color: var(--wp--preset--color--blue-500) !important;}.has-blue-400-background-color{background-color: var(--wp--preset--color--blue-400) !important;}.has-blue-300-background-color{background-color: var(--wp--preset--color--blue-300) !important;}.has-blue-100-background-color{background-color: var(--wp--preset--color--blue-100) !important;}.has-red-background-color{background-color: var(--wp--preset--color--red) !important;}.has-green-100-background-color{background-color: var(--wp--preset--color--green-100) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-400-border-color{border-color: var(--wp--preset--color--black-400) !important;}.has-grey-500-border-color{border-color: var(--wp--preset--color--grey-500) !important;}.has-grey-400-border-color{border-color: var(--wp--preset--color--grey-400) !important;}.has-grey-100-border-color{border-color: var(--wp--preset--color--grey-100) !important;}.has-nobel-gold-border-color{border-color: var(--wp--preset--color--nobel-gold) !important;}.has-nobel-pale-border-color{border-color: var(--wp--preset--color--nobel-pale) !important;}.has-nobel-smoke-border-color{border-color: var(--wp--preset--color--nobel-smoke) !important;}.has-blue-700-border-color{border-color: var(--wp--preset--color--blue-700) !important;}.has-blue-500-border-color{border-color: var(--wp--preset--color--blue-500) !important;}.has-blue-400-border-color{border-color: var(--wp--preset--color--blue-400) !important;}.has-blue-300-border-color{border-color: var(--wp--preset--color--blue-300) !important;}.has-blue-100-border-color{border-color: var(--wp--preset--color--blue-100) !important;}.has-red-border-color{border-color: var(--wp--preset--color--red) !important;}.has-green-100-border-color{border-color: var(--wp--preset--color--green-100) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;}.has-14-font-size{font-size: var(--wp--preset--font-size--14) !important;}.has-15-font-size{font-size: var(--wp--preset--font-size--15) !important;}.has-16-font-size{font-size: var(--wp--preset--font-size--16) !important;}.has-18-font-size{font-size: var(--wp--preset--font-size--18) !important;}.has-22-font-size{font-size: var(--wp--preset--font-size--22) !important;}.has-24-font-size{font-size: var(--wp--preset--font-size--24) !important;}.has-32-font-size{font-size: var(--wp--preset--font-size--32) !important;}.has-48-font-size{font-size: var(--wp--preset--font-size--48) !important;}.has-100-font-size{font-size: var(--wp--preset--font-size--100) !important;}.has-primary-font-family{font-family: var(--wp--preset--font-family--primary) !important;}.has-secondary-font-family{font-family: var(--wp--preset--font-family--secondary) !important;}.wp-block-nobel-prize-queried-content.has-grey-100-color{color: var(--wp--preset--color--grey-100) !important;}.wp-block-nobel-prize-queried-content.has-nobel-pale-color{color: var(--wp--preset--color--nobel-pale) !important;}.wp-block-nobel-prize-queried-content.has-nobel-smoke-color{color: var(--wp--preset--color--nobel-smoke) !important;}.wp-block-nobel-prize-queried-content.has-blue-100-color{color: var(--wp--preset--color--blue-100) !important;}.wp-block-nobel-prize-queried-content.has-green-100-color{color: var(--wp--preset--color--green-100) !important;}.wp-block-nobel-prize-queried-content.has-grey-100-background-color{background-color: var(--wp--preset--color--grey-100) !important;}.wp-block-nobel-prize-queried-content.has-nobel-pale-background-color{background-color: var(--wp--preset--color--nobel-pale) !important;}.wp-block-nobel-prize-queried-content.has-nobel-smoke-background-color{background-color: var(--wp--preset--color--nobel-smoke) !important;}.wp-block-nobel-prize-queried-content.has-blue-100-background-color{background-color: var(--wp--preset--color--blue-100) !important;}.wp-block-nobel-prize-queried-content.has-green-100-background-color{background-color: var(--wp--preset--color--green-100) !important;}.wp-block-nobel-prize-queried-content.has-grey-100-border-color{border-color: var(--wp--preset--color--grey-100) !important;}.wp-block-nobel-prize-queried-content.has-nobel-pale-border-color{border-color: var(--wp--preset--color--nobel-pale) !important;}.wp-block-nobel-prize-queried-content.has-nobel-smoke-border-color{border-color: var(--wp--preset--color--nobel-smoke) !important;}.wp-block-nobel-prize-queried-content.has-blue-100-border-color{border-color: var(--wp--preset--color--blue-100) !important;}.wp-block-nobel-prize-queried-content.has-green-100-border-color{border-color: var(--wp--preset--color--green-100) !important;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} :root :where(.wp-block-pullquote){font-size: clamp(0.984em, 0.984rem + ((1vw - 0.2em) * 0.938), 1.5em);line-height: 1.6;} </style> <link rel='stylesheet' id='nobelprize_block_library_admin-css' href='https://www.nobelprize.org/wp-content/plugins/nobelprize-block-library/dist/css/frontend.css?ver=9af3caa4ba4635a79486' type='text/css' media='all' /> <link rel='stylesheet' id='styles-css' href='https://www.nobelprize.org/wp-content/themes/nobelprize/dist/css/frontend.css?ver=0fc4ea04d626abf846ed' type='text/css' media='all' /> <script type="text/javascript" id="loadjs-js-extra"> /* <![CDATA[ */ var fallback = {"path":"\/var\/www\/html\/wp-content\/themes\/nobelprize\/\/assets\/js\/frontend\/lib\/respimg\/ls.respimg.min.js"}; /* ]]> */ </script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/js/frontend/lib/loadjs.js?ver=1732293022" id="loadjs-js"></script> <style>img#wpstats{display:none}</style> <link type="text/plain" rel="author" href="https://www.nobelprize.org/wp-content/themes/nobelprize/humans.txt" /> <script> window.VIDEOJS_NO_BASE_THEME = true; window.VIDEOJS_NO_DYNAMIC_STYLE = true; </script>  <script type="text/javascript" src="https://cdn.cookielaw.org/consent/d75760b8-7732-445e-9a87-2de3e237d0fe/OtAutoBlock.js"></script> <script src="https://cdn.cookielaw.org/scripttemplates/otSDKStub.js" type="text/javascript" charset="UTF-8" data-domain-script="d75760b8-7732-445e-9a87-2de3e237d0fe"></script> <script type="text/javascript"> function OptanonWrapper() { } </script>   <script type="text/javascript">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-WDHZ8W5');</script>   <meta name="twitter:title" content="The Nobel Prize in Physics 1955"> <meta itemprop="name" content="The Nobel Prize in Physics 1955" /> <meta property="og:title" content="The Nobel Prize in Physics 1955" />   <meta name="twitter:description" content="The Nobel Prize in Physics 1955 was divided equally between Willis Eugene Lamb "for his discoveries concerning the fine structure of the hydrogen spectrum" and Polykarp Kusch "for his precision determination of the magnetic moment of the electron""> <meta itemprop="description" content="The Nobel Prize in Physics 1955 was divided equally between Willis Eugene Lamb "for his discoveries concerning the fine structure of the hydrogen spectrum" and Polykarp Kusch "for his precision determination of the magnetic moment of the electron"" /> <meta property="og:description" content="The Nobel Prize in Physics 1955 was divided equally between Willis Eugene Lamb "for his discoveries concerning the fine structure of the hydrogen spectrum" and Polykarp Kusch "for his precision determination of the magnetic moment of the electron"" />   <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:image" content="https://www.nobelprize.org/images/lamb-13107-landscape-medium.jpg" /> <meta itemprop="image" content="https://www.nobelprize.org/images/lamb-13107-landscape-medium.jpg" /> <meta property="og:image" content="https://www.nobelprize.org/images/lamb-13107-landscape-medium.jpg" /> <meta property="og:image" content="https://www.nobelprize.org/images/kusch-13106-landscape-medium.jpg" />  <meta property="og:url" content="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" /> <link rel="icon" href="https://www.nobelprize.org/uploads/2018/08/Nobel-favicon-50x50.png" sizes="32x32" /> <link rel="icon" href="https://www.nobelprize.org/uploads/2018/08/Nobel-favicon-232x232.png" sizes="192x192" /> <link rel="apple-touch-icon" href="https://www.nobelprize.org/uploads/2018/08/Nobel-favicon-188x188.png" /> <meta name="msapplication-TileImage" content="https://www.nobelprize.org/uploads/2018/08/Nobel-favicon.png" /> <style type="text/css" id="wp-custom-css"> .summit-event-nav .prizes-nav-top-tier li:last-of-type { border-right: 0; } .ot-sdk-show-settings:hover, .ot-sdk-show-settings { background-color: #CEA152 !important; border-color: #CEA152 !important; color: #FFFFFF !important; } </style> </head> <body class="prize-content-type ">  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-WDHZ8W5" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>   <a class="skip-link screen-reader-text" href="#content"> Skip to content </a> <header class="site-header js-site-header" role="banner" itemscope="itemscope" itemtype="http://schema.org/WPHeader"> <div class="site-header__wrapper container"> <div class="site-banner" itemscope itemtype="http://schema.org/Organization"> <div class="site-banner-logo" itemscope itemtype="http://schema.org/Organization"> <h1 class="site-logo" itemprop="logo"> <a itemprop="url" href="https://www.nobelprize.org" name="top" aria-label="The Nobel Prize"> <svg class="site-logo-icon site-logo-icon--big" xmlns="http://www.w3.org/2000/svg" width="77" height="60" fill="none" viewBox="0 0 77 60"><path d="M25.298 1.997h-4.631v14.66h-2.21V1.997h-4.674V0h11.515v1.997ZM42.126 0v16.657h-2.21V8.711h-9.179v7.946h-2.21V0h2.21v6.714h9.179V0h2.21Zm14.617 16.657V14.66h-7.691V8.711h7.011V6.714h-7.011V1.997h7.564V0h-9.731v16.657h9.858Zm-43.045 5.014V38.33h-1.53L2.225 25.41v12.918H.1V21.67h1.7l9.773 12.578V21.671h2.125Zm12.025-.34c-4.801 0-8.71 3.867-8.71 8.669 0 4.802 3.909 8.669 8.71 8.669 4.802 0 8.711-3.867 8.711-8.669 0-4.802-3.91-8.669-8.71-8.669Zm.043 2.083c3.527 0 6.459 2.932 6.459 6.586 0 3.654-2.932 6.586-6.46 6.586-3.526 0-6.458-2.932-6.458-6.586 0-3.654 2.932-6.586 6.459-6.586Zm23.116 9.943c0 2.932-2.125 4.972-5.227 4.972h-5.779V21.67h5.27c3.059 0 4.971 1.53 4.971 3.995 0 1.614-.85 2.89-2.252 3.527 1.87.68 3.017 2.167 3.017 4.164Zm-8.796-9.73v4.8h3.06c1.53 0 2.846-.934 2.846-2.506 0-1.573-1.232-2.295-2.847-2.295h-3.06Zm6.629 9.772c0-1.87-1.445-3.017-3.145-3.017h-3.484v6.034h3.484c1.7-.042 3.145-1.147 3.145-3.017Zm15.467 4.93V36.33h-7.649v-5.949h7.012v-1.997h-7.012V23.67h7.564V21.67h-9.773V38.33h9.858ZM76.29 36.33v1.998h-9.731V21.67h2.21v14.66h7.52Zm-65.057 15.85c2.89 0 4.93-1.784 4.93-4.419 0-2.592-2.04-4.42-4.972-4.42H5.41V60h2.21v-7.819h3.612Zm0-6.841c1.615 0 2.72.892 2.72 2.422 0 1.53-1.105 2.422-2.72 2.422H7.621V45.34h3.612Zm12.11 6.756h-1.742V60h-2.21V43.343h5.78c2.89 0 4.929 1.742 4.929 4.376 0 2.423-1.742 4.08-4.25 4.335l6.035 7.904H29.25l-5.906-7.862ZM21.602 50.1h3.612c1.657 0 2.72-.85 2.72-2.38 0-1.53-1.105-2.38-2.72-2.38h-3.612v4.76Zm15.17-6.756h-2.21V60h2.21V43.343Zm3.442 14.915L49.86 45.34h-8.71v-1.997h11.557v1.614l-9.73 13.046h9.985V60H40.213v-1.742ZM66.304 60v-1.997h-7.691v-5.95h7.011v-1.996h-7.011V45.34h7.564v-1.997h-9.731V60h9.858Z"/></svg> <svg class="site-logo-icon site-logo-icon--small" xmlns="http://www.w3.org/2000/svg" width="171" height="16" fill="none" viewBox="0 0 171 16"><path d="M10.3 2.222H6.256v12.684H4.344V2.222H.3V.494h9.963v1.728h.037ZM24.822.494v14.412H22.91V8.03h-7.94v6.875h-1.913V.494h1.912v5.809h7.941V.494h1.912Zm12.61 12.684v1.728h-8.53V.494h8.42v1.728h-6.544v4.081h6.066v1.728h-6.066v5.147h6.654ZM57.322.494v14.412h-1.324L47.397 3.729v11.177h-1.839V.494h1.47l8.457 10.883V.494h1.838ZM60.19 7.7c0-4.154 3.382-7.5 7.537-7.5 4.154 0 7.536 3.346 7.536 7.5s-3.382 7.5-7.537 7.5c-4.154 0-7.536-3.346-7.536-7.5Zm13.162 0c0-3.162-2.537-5.699-5.589-5.699-3.051 0-5.588 2.537-5.588 5.699s2.537 5.699 5.588 5.699c3.052 0 5.588-2.537 5.588-5.699Zm14.411 2.904c0 2.537-1.838 4.302-4.522 4.302h-5.037V.494h4.56c2.646 0 4.3 1.324 4.3 3.456 0 1.397-.735 2.5-1.948 3.051 1.655.589 2.647 1.875 2.647 3.603Zm-7.61-8.419V6.34H82.8c1.324 0 2.463-.81 2.463-2.17 0-1.36-1.066-1.985-2.463-1.985h-2.647Zm5.735 8.456c0-1.617-1.25-2.61-2.72-2.61h-3.015v5.22h3.015c1.47-.036 2.72-.992 2.72-2.61Zm13.383 2.537v1.728h-8.53V.494h8.42v1.728h-6.545v4.081h6.103v1.728h-6.066v5.147h6.618Zm12.206 0v1.728h-8.42V.494h1.912v12.684h6.508Zm15.514-8.86c0 2.28-1.765 3.823-4.265 3.823h-3.125v6.765h-1.911V.494h5c2.537 0 4.301 1.581 4.301 3.824Zm-1.912 0c0-1.324-.955-2.096-2.353-2.096h-3.125v4.191h3.125c1.398 0 2.353-.772 2.353-2.095Zm8.089 3.75h-1.508v6.838h-1.911V.494h5c2.5 0 4.264 1.507 4.264 3.787 0 2.095-1.507 3.53-3.676 3.75l5.22 6.838h-2.279l-5.11-6.801Zm-1.471-1.728h3.125c1.434 0 2.353-.736 2.353-2.06 0-1.323-.956-2.058-2.353-2.058h-3.125V6.34ZM142.91.494h1.912v14.412h-1.912V.494ZM147.8 13.4l8.346-11.177h-7.537V.494h10v1.397l-8.419 11.287h8.639v1.728H147.8v-1.508Zm22.537-.221v1.728h-8.53V.494h8.42v1.728h-6.545v4.081h6.067v1.728h-6.067v5.147h6.655Z"/></svg> </a> </h1> </div> <div class="mobile-actions"> <div class="mobile-search"> <button type="button" id="search-mobile-trigger-js" aria-controls="header-search-form" aria-expanded="false"> <svg class="search-open" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" role="img" aria-labelledby="desktop-search-title"> <title id="desktop-search-title">Open the search menu</title> <path fill="#2E2A25" d="m19.6 21-6.3-6.3A6.096 6.096 0 0 1 9.5 16c-1.817 0-3.354-.63-4.612-1.887C3.629 12.854 3 11.317 3 9.5c0-1.817.63-3.354 1.888-4.612C6.146 3.629 7.683 3 9.5 3c1.817 0 3.354.63 4.613 1.888C15.37 6.146 16 7.683 16 9.5a6.096 6.096 0 0 1-1.3 3.8l6.3 6.3-1.4 1.4ZM9.5 14c1.25 0 2.313-.438 3.188-1.313C13.562 11.813 14 10.75 14 9.5c0-1.25-.438-2.313-1.313-3.188C11.813 5.438 10.75 5 9.5 5c-1.25 0-2.313.438-3.188 1.313S5 8.25 5 9.5c0 1.25.438 2.313 1.313 3.188C7.188 13.562 8.25 14 9.5 14Z"/> </svg> <svg class="search-close" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="#2E2A25" role="img" aria-labelledby="desktop-search-title"> <title id="desktop-search-title">Close the search menu</title> <path d="M6.4 19 5 17.6l5.6-5.6L5 6.4 6.4 5l5.6 5.6L17.6 5 19 6.4 13.4 12l5.6 5.6-1.4 1.4-5.6-5.6L6.4 19Z"/> </svg> </button>  <noscript> <a id="mobile-close-js" class="toggle-close" href="#"> <span>Close Mobile Menu</span> </a> </noscript> </div> <div class="mobile-nav"> <button type="button" id="mobile-nav-js" class="toggle" aria-controls="main-navigation-js" aria-expanded="false"> <span> Toggle Mobile Menu </span> </button> </div> </div> </div> <nav id="main-navigation-js" class="site-main-navigation" role="navigation" itemscope="itemscope" itemtype="http://schema.org/SiteNavigationElement" aria-label="Main menu" aria-hidden="true"> <ul id="menu-header_top" class="main-menu" role="menu"><li id="menu-item-28259" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-28259" role="menuitem"><a href="/prizes/">Nobel Prizes & laureates</a> <ul class="sub-menu" role="menu" aria-hidden="true"> <li id="menu-item-175174" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-175174" role="menuitem"><a href="/prizes/lists/all-nobel-prizes/">All Nobel Prizes</a></li> <li id="menu-item-222451" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-222451" role="menuitem"><a href="https://www.nobelprize.org/all-nobel-prizes-2024/">All Nobel Prizes 2024</a></li> <li id="menu-item-48853" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48853" role="menuitem"><a href="/prizes/physics/">Physics prize</a></li> <li id="menu-item-48854" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48854" role="menuitem"><a href="/prizes/chemistry/">Chemistry prize</a></li> <li id="menu-item-48855" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48855" role="menuitem"><a href="/prizes/medicine/">Medicine prize</a></li> <li id="menu-item-48856" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48856" role="menuitem"><a href="/prizes/literature/">Literature prize</a></li> <li id="menu-item-48857" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48857" role="menuitem"><a href="/prizes/peace/">Peace prize</a></li> <li id="menu-item-48858" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-48858" role="menuitem"><a href="/prizes/economic-sciences/">Prize in economic sciences</a></li> </ul> </li> <li id="menu-item-28260" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-28260" role="menuitem"><a href="/about/">About</a> <ul class="sub-menu" role="menu" aria-hidden="true"> <li id="menu-item-43405" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43405" role="menuitem"><a href="/about-the-nobel-prize/">About the prize</a></li> <li id="menu-item-43408" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43408" role="menuitem"><a href="/alfred-nobel">Alfred Nobel</a></li> <li id="menu-item-43407" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43407" role="menuitem"><a href="/about/nobel-prize-award-ceremonies/">Award ceremonies</a></li> <li id="menu-item-43409" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43409" role="menuitem"><a href="/nomination">Nomination</a></li> <li id="menu-item-43406" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-43406" role="menuitem"><a href="/the-nobel-prize-organisation">Organisation</a></li> </ul> </li> <li id="menu-item-28261" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28261" role="menuitem"><a href="/stories/">Stories</a></li> <li id="menu-item-28262" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28262" role="menuitem"><a href="/educational/">Educational</a></li> <li id="menu-item-219562" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-219562" role="menuitem"><a href="/events-museums/">Events & museums</a></li> <li role="menuitem" class="searchform"> <button type="button" id="search-trigger-js" aria-controls="header-search-form" aria-expanded="false"> <svg class="search-open" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewbox="0 0 24 24" fill="none" role="img" aria-labelledby="desktop-search-title"> <title id="desktop-search-title">Open the search menu</title> <path fill="#2E2A25" d="m19.6 21-6.3-6.3A6.096 6.096 0 0 1 9.5 16c-1.817 0-3.354-.63-4.612-1.887C3.629 12.854 3 11.317 3 9.5c0-1.817.63-3.354 1.888-4.612C6.146 3.629 7.683 3 9.5 3c1.817 0 3.354.63 4.613 1.888C15.37 6.146 16 7.683 16 9.5a6.096 6.096 0 0 1-1.3 3.8l6.3 6.3-1.4 1.4ZM9.5 14c1.25 0 2.313-.438 3.188-1.313C13.562 11.813 14 10.75 14 9.5c0-1.25-.438-2.313-1.313-3.188C11.813 5.438 10.75 5 9.5 5c-1.25 0-2.313.438-3.188 1.313S5 8.25 5 9.5c0 1.25.438 2.313 1.313 3.188C7.188 13.562 8.25 14 9.5 14Z"></path> </svg> <svg class="search-close" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="#2E2A25" role="img" aria-labelledby="desktop-search-title"> <title id="desktop-search-title">Close the search menu</title> <path d="M6.4 19 5 17.6l5.6-5.6L5 6.4 6.4 5l5.6 5.6L17.6 5 19 6.4 13.4 12l5.6 5.6-1.4 1.4-5.6-5.6L6.4 19Z"></path> </svg> </button> </li> </ul> </nav> </div> <div id="header-search-form" class="header-search-form js-header-search-form" aria-hidden="true"> <div class="container"> <form class="searchform -header" method="GET" action="/search/" > <label for="search-form-input-header" class="screen-reader-text"> Header Search </label> <input type="search" class="input" name="s" id="search-form-input-header" placeholder="Enter your search here" value="" required> <button type="submit"> <svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" fill="#2E2A25" role="img" aria-labelledby="submit-search-title-header -header"> <title id="submit-search-title-header">Submit a search term</title> <path d="m19.6 21-6.3-6.3A6.096 6.096 0 0 1 9.5 16c-1.817 0-3.354-.63-4.612-1.887C3.629 12.854 3 11.317 3 9.5c0-1.817.63-3.354 1.888-4.612C6.146 3.629 7.683 3 9.5 3c1.817 0 3.354.63 4.613 1.888C15.37 6.146 16 7.683 16 9.5a6.096 6.096 0 0 1-1.3 3.8l6.3 6.3-1.4 1.4ZM9.5 14c1.25 0 2.313-.438 3.188-1.313C13.562 11.813 14 10.75 14 9.5c0-1.25-.438-2.313-1.313-3.188C11.813 5.438 10.75 5 9.5 5c-1.25 0-2.313.438-3.188 1.313S5 8.25 5 9.5c0 1.25.438 2.313 1.313 3.188C7.188 13.562 8.25 14 9.5 14Z"/> </svg> </button> </form> </div> </div> </header> <main id="content" role="main" class="nobel-content"> <noscript id="noscript-list"> <h3> Enhanced Page Navigation </h3> <ol> <li> <a href="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" title="Nobel Prize in Physics 1955 - Presentation Speech" data-related="0" > Nobel Prize in Physics 1955 - Presentation Speech </a> </li> <li> <a href="https://www.nobelprize.org/prizes/physics/1955/summary/" title="The Nobel Prize in Physics 1955" data-related="0" > The Nobel Prize in Physics 1955 </a> </li> <li> <a href="https://www.nobelprize.org/prizes/physics/1955/award-video/" title="The Nobel Prize Award Ceremony 1955" data-related="1" > The Nobel Prize Award Ceremony 1955 </a> </li> </ol> </noscript> <div id="pjax-well" class="container page-content-area"> <div class="pjax-container"> <section class="page-section biographical"> <aside class="page-aside border-top"> <header class="header"> <h5 class="heading"> <a href="https://www.nobelprize.org/prizes/physics/1955/summary/"> The Nobel Prize in Physics 1955 </a> </h5> </header> <nav class="aside-navigation aside-navigation--desktop" aria-label="In Page Navigation"> <ul class="aside-navigation__list"><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/1955/summary/" aria-current="false" > Summary </a> </li><li class="aside-navigation__list-item">Laureates<ul class="aside-navigation__list"><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/1955/lamb/facts/" aria-current="false" > Willis E. Lamb </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/1955/kusch/facts/" aria-current="false" > Polykarp Kusch </a> </li></ul></li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/1955/award-video/" aria-current="false" > Award ceremony video </a> </li><li class="aside-navigation__list-item"> <a href="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" aria-current="page" > Presentation Speech </a> </li></ul></nav> <footer class="footer"> <div class="share-this"> <h6 class="heading"> Share this </h6> <ul class="socialicons" aria-label="Social sharing links"> <li class="socialicon" data-social="facebook"> <a href="https://www.facebook.com/sharer.php?u=https%3A%2F%2Fwww.nobelprize.org%2Fprizes%2Fphysics%2F1955%2Fceremony-speech%2F&t=Award+ceremony+speech" data-target="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" target="_blank" rel="noreferrer" > <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path d="M14.526 34h-3.96A4.572 4.572 0 0 1 6 29.43V10.57C6 8.051 8.051 6 10.571 6H29.43A4.577 4.577 0 0 1 34 10.57v18.854c0 2.52-2.051 4.57-4.571 4.57h-3.492a.573.573 0 0 1-.571-.571V22.305c0-.314.257-.571.571-.571h2.229l.405-3.228h-2.634a.573.573 0 0 1-.571-.571v-3.28c0-.314.257-.57.571-.57h2.709v-3.229h-4.892a1.62 1.62 0 0 0-1.617 1.617v5.462a.573.573 0 0 1-.571.571h-2.709v3.228h2.709c.314 0 .571.257.571.571v11.118a.59.59 0 0 1-.166.406c-.148.148-.171.171-7.44.171h-.005ZM10.57 7.143a3.43 3.43 0 0 0-3.428 3.427v18.854a3.43 3.43 0 0 0 3.423 3.428h10.423V22.87H18.28a.573.573 0 0 1-.571-.572v-4.37c0-.314.257-.571.571-.571h2.709v-4.89c0-1.52 1.24-2.76 2.76-2.76h5.462c.315 0 .572.257.572.571v4.37a.573.573 0 0 1-.572.572h-2.708v2.137h2.708a.56.56 0 0 1 .429.194c.109.126.16.286.137.451l-.548 4.37a.573.573 0 0 1-.566.504h-2.16v9.975h2.92a3.43 3.43 0 0 0 3.428-3.428V10.57a3.43 3.43 0 0 0-3.428-3.427H10.57Z"/></svg> <span class="screen-reader-text"> Facebook </span> </a> </li> <li class="socialicon" data-social="twitter"> <a href="https://twitter.com/intent/tweet?text=Award+ceremony+speech&url=https%3A%2F%2Fwww.nobelprize.org%2Fprizes%2Fphysics%2F1955%2Fceremony-speech%2F" data-target="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" target="_blank" rel="noreferrer" > <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M11.143 6h17.714A5.148 5.148 0 0 1 34 11.143v17.714A5.148 5.148 0 0 1 28.857 34H11.143A5.148 5.148 0 0 1 6 28.857V11.143A5.148 5.148 0 0 1 11.143 6Zm17.714 26.857c2.205 0 4-1.795 4-4V11.143c0-2.205-1.795-4-4-4H11.143c-2.205 0-4 1.795-4 4v17.714c0 2.205 1.795 4 4 4h17.714Zm-.995-22.384a.572.572 0 0 1 .847.768l-6.933 7.65 6.977 9.923a.572.572 0 0 1-.468.9h-3.714a.571.571 0 0 1-.468-.243l-5.205-7.404-6.76 7.46a.57.57 0 0 1-.808.04.572.572 0 0 1-.04-.808l6.934-7.65-6.977-9.923a.572.572 0 0 1 .468-.9h3.714c.186 0 .36.09.467.243l5.206 7.404 6.76-7.46Zm-15.047.956L24.869 28.57h2.317L15.132 11.43h-2.317Z" clip-rule="evenodd"/></svg> <span class="screen-reader-text"> X </span> </a> </li> <li class="socialicon" data-social="linkedin"> <a href="https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.nobelprize.org%2Fprizes%2Fphysics%2F1955%2Fceremony-speech%2F&title=Award+ceremony+speech" data-target="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" target="_blank" rel="noreferrer" > <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M12.909 14.251a2.557 2.557 0 0 1-2.555-2.554 2.56 2.56 0 0 1 2.555-2.554 2.56 2.56 0 0 1 2.554 2.554 2.56 2.56 0 0 1-2.554 2.554Zm0-3.965c-.778 0-1.412.634-1.412 1.411s.634 1.412 1.412 1.412c.777 0 1.411-.635 1.411-1.412 0-.777-.634-1.411-1.411-1.411Z" clip-rule="evenodd"/><path d="M28.771 28.211c0 .315.258.572.572.572l-.006-.006a.573.573 0 0 0 .572-.571v-7.292c0-3.605-2.509-4.891-4.852-4.891-1.457 0-2.497.383-3.44 1v-.532a.573.573 0 0 0-.571-.571h-3.612a.573.573 0 0 0-.571.571v11.715c0 .314.257.571.571.571a.573.573 0 0 0 .572-.571V17.063h2.468v1.108a.574.574 0 0 0 .943.44c1.057-.891 2.034-1.44 3.646-1.44 1.114 0 3.708.366 3.708 3.749v7.291ZM14.611 28.783a.573.573 0 0 1-.571-.572V17.07h-2.543V28.21a.573.573 0 0 1-.571.572.573.573 0 0 1-.572-.572V16.497c0-.314.257-.571.572-.571h3.685c.315 0 .572.257.572.571v11.714a.573.573 0 0 1-.572.572Z"/><path d="M25.657 28.783a.573.573 0 0 1-.571-.572V22.83c0-1.286-.412-1.738-1.577-1.738-1.252 0-1.886.458-1.886 1.355v5.765a.573.573 0 0 1-.572.572.573.573 0 0 1-.571-.572v-5.765c0-1.56 1.131-2.497 3.029-2.497 1.897 0 2.72.971 2.72 2.88v5.382a.573.573 0 0 1-.572.572Z"/><path fill-rule="evenodd" d="M11.143 34h17.714A5.15 5.15 0 0 0 34 28.857V11.143A5.15 5.15 0 0 0 28.857 6H11.143A5.15 5.15 0 0 0 6 11.143v17.714A5.15 5.15 0 0 0 11.143 34Zm-4-22.857c0-2.206 1.794-4 4-4h17.714c2.206 0 4 1.794 4 4v17.714c0 2.206-1.794 4-4 4H11.143c-2.206 0-4-1.794-4-4V11.143Z" clip-rule="evenodd"/></svg> <span class="screen-reader-text"> LinkedIn </span> </a> </li> <li class="socialicon" data-social="email"> <a data-target="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" href="/cdn-cgi/l/email-protection#645b1711060e0107105922160b094156542a0b06010834160d1e014a0b16035e415654251305160041565407011601090b0a1d41565417140101070c424754575c5f060b001d590c101014175e4b4b1313134a0a0b06010814160d1e014a0b16034b14160d1e01174b140c1d170d07174b555d51514b07011601090b0a1d4917140101070c4b" target="_blank" rel="noreferrer"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M12.229 14.02A1.37 1.37 0 0 0 11 15.384v9.84a1.37 1.37 0 0 0 1.37 1.37h15.26a1.37 1.37 0 0 0 1.37-1.37V15.37A1.37 1.37 0 0 0 27.63 14H12.37a.5.5 0 0 0-.141.02Zm.256.98a.504.504 0 0 1-.114.013.37.37 0 0 0-.371.37v9.841a.37.37 0 0 0 .37.37h15.26a.37.37 0 0 0 .37-.37V15.37a.37.37 0 0 0-.37-.37H12.485Zm.288.88a.5.5 0 0 1 .699-.107L20 20.577l6.528-4.804a.5.5 0 0 1 .593.805l-6.825 5.023a.5.5 0 0 1-.592 0l-6.825-5.023a.5.5 0 0 1-.106-.699Z" clip-rule="evenodd"/><path fill-rule="evenodd" d="M28.857 6H11.143A5.148 5.148 0 0 0 6 11.143v17.714A5.148 5.148 0 0 0 11.143 34h17.714A5.148 5.148 0 0 0 34 28.857V11.143A5.148 5.148 0 0 0 28.857 6Zm4 22.857c0 2.205-1.795 4-4 4H11.143c-2.205 0-4-1.795-4-4V11.143c0-2.205 1.795-4 4-4h17.714c2.205 0 4 1.795 4 4v17.714Z" clip-rule="evenodd"/></svg> <span class="screen-reader-text"> Email this page </span> </a> </li> </ul> </div> </footer> </aside> <article class=" page-content border-top entry-content"> <header> <h1> Award ceremony speech </h1> </header> <select class="aside-navigation aside-navigation--mobile input-select js-aside-navigation--mobile" name="Go to laureate page"> <option value="" selected disabled>Navigate to:</option> <option value="https://www.nobelprize.org/prizes/physics/1955/summary/"> Summary</option><optgroup label=" Laureates"><option value="https://www.nobelprize.org/prizes/physics/1955/lamb/facts/">- Willis E. Lamb</option><option value="https://www.nobelprize.org/prizes/physics/1955/kusch/facts/">- Polykarp Kusch</option></optgroup><option value="https://www.nobelprize.org/prizes/physics/1955/award-video/"> Award ceremony video</option><option value="https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/" disabled selected> Presentation Speech</option></select> <p class="smalltext">Presentation Speech by Professor I. Wailer, member of the <a href="http://www.kva.se" target="_blank">Nobel Committee for Physics</a></p> <p>Your Majesties, Your Royal Highnesses, Ladies and Gentlemen.</p> <p> The Nobel Prize winners in Physics of this year were both employed shortly before the war at the Physics Laboratory of Columbia University in New York. Lamb was at first engaged in theoretical research and published several important investigations in this field. Kusch was soon one of the most active collaborators of Professor Rabi, when the latter worked out his resonance method, for which he was awarded the <a href="/nobel_prizes/physics/laureates/1955/../1944/index.html">Nobel Prize in Physics of 1944</a>. In this method the spectra of the atoms are studied by radio waves and the details of the spectra can thereby be investigated much more accurately than before. Kusch and Lamb participated during the war in the extensive work on radar technique which was then being performed. Because of the great progress in this field the resonance method could be much improved. It was used by Kusch and, in an essentially modified form, by Lamb when in 1947 they made their great discoveries as leaders of two separate research groups. Not only were the discoveries made independently of each other in the same laboratory and in the same year, but it was also soon found that the explanation of both phenomena is the same, namely the interaction of the electrons and the electromagnetic radiation.</p> <p> Lamb’s discovery refers to the hydrogen atom, where one single electron moves around the nucleus in one of a series of orbits, each having a definite energy. These energy levels exhibit a fine structure which means that they are arranged in groups of neighbouring levels, the groups being widely separated. An explanation of the fine structure which for a long time was thought to be correct, was given in 1928 by the English physicist <a href="/nobel_prizes/physics/laureates/1933/index.html">Dirac</a>, when he proposed a theory of the electron based on the requirements of the theory of relativity as well as the quantum theory.</p> <p> Using optical methods many attempts were made during the next decade to check the Dirac theory of the fine structure but no definite results were obtained. Some investigations made it probable, however, that the theory was not entirely correct and the guess was made that there occur deviations which are similar to those later found by Lamb.</p> <p> Lamb was aware of the great importance that a careful check of the Dirac theory would have. He began his experimental investigations of the fine structure shortly after the war. His technique was based on Rabi’s resonance method which had to be much modified, however. Lamb planned his difficult experiment guided by a thorough theoretical analysis of the experimental arrangements.</p> <p> In 1947 his experiments were successful. He found that two fine structure levels in the next lowest group which should coincide according to the Dirac theory are in reality shifted relative to each other by a certain amount which is now called the Lamb shift. He succeeded in measuring this shift with great accuracy and later made similar measurements on heavy hydrogen.</p> <p> The discovery of Kusch refers directly to an important property of the electron, namely its magnetic moment. It had been known since long that the electron is a small magnet. The strength of this magnet is measured by its moment. The magnitude of the moment should be uniquely determined by the electron theory of Dirac, mentioned before.</p> <p> At the beginning of 1947 Rabi together with several collaborators found that a property of the lowest hydrogen level (namely its so-called hyperfine structure) does not entirely conform with theory. It was suggested by the American physicist Breit that the reason for this could be that the magnetic moment of the electron is somewhat different from the value assumed until then which is called a <a href="/nobel_prizes/physics/laureates/1922/index.html">Bohr</a> magneton.</p> <p> Starting from this idea Kusch made a series of very careful investigations and found in 1947 that the magnetic moment of the electron is larger than the Bohr magneton by about one part in a thousand.</p> <p> The effects discovered by Lamb and Kusch are exceedingly small. They were revealed only with the help of a very refined technique. As has happened before it was now found that the discovery of minute deviations from existing theories can be offer-reaching importance. The discoveries of Lamb and Kusch resulted in a reshaping of the theory of the interaction of the electrons and the electromagnetic radiation, the so-called quantum electrodynamucs.</p> <p> Lamb reported on his results at a physics meeting which was held in the neighbourhood of New York in the early summer of 1947. Many prominent theoretical physicists were present and among them Professor Kramers from Holland, who died a few years ago. During the discussion it was made probable that the Lamb shift could be explained using certain general ideas of Kramers, the purpose of which was to improve the theories just mentioned.</p> <p> A rough estimate which agreed rather well with Lamb’s measurements was soon made and somewhat later Lamb himself and many others carried out more accurate calculations. It was also found by <a href="/nobel_prizes/physics/laureates/1955/../1965/index.html">Professor Schwinger</a> at Harvard University that the anomaly in the magnetic moment of the electron found by Kusch could be similarly explained. In both cases the measurements as well as the calculations have since been considerably improved and agree now very well.</p> <p>Professor Willis Lamb. Professor Polykarp Kusch. Your discoveries which the Royal Swedish Academy of Sciences wishes to recognize on this occasion have been made by applying radiohrequency spectroscopy of the highest achievable precision to the study of the properties of the electron. Your work is marked not only by the beauty of your experiments but equally by the profound significance of your results. It does not often happen that experimental discoveries exert an influence on physics as strong and invigorating as did your work. Your discoveries led to a re-evaluation and a re-shaping of the theory of the interaction of electrons and electromagnetic radiation, thus initiating a development of utmost importance to many of the basic concepts of physics, a development the end of which is not yet in sight.</p> <p> I now ask you to receive your Nobel Prize from the hands of His Majesty the King.</p> <footer class="copyright"> <small class="lectures"> From <i><a href="/nobel_organizations/nobelfoundation/publications/lectures/index.html">Nobel Lectures</a>, Physics 1942-1962</i>, Elsevier Publishing Company, Amsterdam, 1964 </i></p> </small> </footer> <p class="smalltext">聽</p> <footer class="copyright"> <small class="global"> <span class="copy">Copyright © The Nobel Foundation 1955</span> </small> </footer> <footer class="border-top pagecite" itemscope itemtype="http://schema.org/citation"> <p> To cite this section <br> MLA style: Award ceremony speech. NobelPrize.org. Nobel Prize Outreach AB 2024. Wed. 27 Nov 2024. <https://www.nobelprize.org/prizes/physics/1955/ceremony-speech/> </p> </footer> <div class="back-to-top"> <a href="#content" class="back-top-link"> Back to top </a> <svg width="18px" height="15px" viewBox="0 0 20 17" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" role="image" aria-labelledby="back-to-top-title back-to-top-desc"> <title id="back-to-top-title">Back To Top</title> <desc id="back-to-top-desc">Takes users back to the top of the page</desc> <g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"> <g transform="translate(-474.000000, -9998.000000)" fill="#2E2A25"> <g transform="translate(474.000000, 9998.000000)"> <g transform="translate(10.000000, 10.000000) rotate(45.000000) translate(-10.000000, -10.000000) translate(3.000000, 3.000000)"> <rect x="0" y="0" width="2" height="14"></rect> <rect x="0" y="0" width="14" height="2"></rect> </g> <rect x="9" y="3" width="2" height="14"></rect> </g> </g> </g> </svg> </div> </article>  </section> <section class="article-grid featured-content featured-content__color--default var-half-width-a "> <header class="section-header border-top"> <h3 class="section-header-h3">Nobel Prizes and laureates</h3> </header> <article class="article -halfwidth-a "> <div class="content-wrapper"> <header class="content"> <div class="title"> <h2 class="headline"> <a href="https://www.nobelprize.org/all-nobel-prizes-2024/"> <p>Nobel Prizes 2024</p> </a> </h2> </div> </header> <div class="text"> <p>Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 12 laureates' work and discoveries range from proteins' structures and machine learning to fighting for a world free of nuclear weapons.</p> <p>See them all presented here.</p> </div> </div> <figure class="featuredimage"> <a href="https://www.nobelprize.org/all-nobel-prizes-2024/"><picture><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-992x656.jpg" media="(min-width: 220px)" /><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-1520x1008.jpg" media="(min-width: 900px)" /><source data-srcset="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-2048x1352.jpg" media="(min-width: 1400px)" /><img class="lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" alt="Illustration" /><noscript><img src="https://www.nobelprize.org/uploads/2024/10/nobelprizes_2024-1024x676.jpg" alt="Illustration" /></noscript></picture></a> </figure> </article> </section> <section class="explore-laureates page-section"> <header class="section-header border-top"> <h3> Explore prizes and laureates </h3> <div class="info"> Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize. </div> </header> <form class="exploreform" id="6746a8b5edc1e" method='GET' action=''> <div class="dropdown"> <label for="mobile-dropdown" class="screen-reader-text"> Select the category or categories you would like to filter by </label> <select id="mobile-dropdown" name="filtermobile"> <option value="physics" selected='selected' > Physics </option> <option value="chemistry" > Chemistry </option> <option value="medicine" > Medicine </option> <option value="literature" > Literature </option> <option value="peace" > Peace </option> <option value="economic-sciences" > Economic Sciences </option> </select> </div> <div class="selector"> <label class="screen-reader-text">Select the category or categories you would like to filter by</label> <div class="labelbutton" tabindex="0"> <label for="physics"> <input id="physics" name="filter" type="radio" checked='checked' value="physics" hidden> <span> Physics </span> </label> </div> <div class="labelbutton" tabindex="0"> <label for="chemistry"> <input id="chemistry" name="filter" type="radio" value="chemistry" hidden> <span> Chemistry </span> </label> </div> <div class="labelbutton" tabindex="0"> <label for="medicine"> <input id="medicine" name="filter" type="radio" value="medicine" hidden> <span> Medicine </span> </label> </div> <div class="labelbutton" tabindex="0"> <label for="literature"> <input id="literature" name="filter" type="radio" value="literature" hidden> <span> Literature </span> </label> </div> <div class="labelbutton" tabindex="0"> <label for="peace"> <input id="peace" name="filter" type="radio" value="peace" hidden> <span> Peace </span> </label> </div> <div class="labelbutton" tabindex="0"> <label for="economic-sciences"> <input id="economic-sciences" name="filter" type="radio" value="economic-sciences" hidden> <span> Economic Sciences </span> </label> </div> </div> <div class="incrementor"> <label for="increment-down" class="screen-reader-text"> Decrease the year by one </label> <button id="increment-down" class="increment-down" type="button"> - </button> <label for="increment-input" class="screen-reader-text"> Choose a year you would like to search in </label> <input id="increment-input" name="prize_year" type="text" maxlength="4" class="increment-input" placeholder="2023" value="1955"> <label for="increment-up" class="screen-reader-text"> Increase the year by one </label> <button id="increment-up" class="increment-up" type="button"> + </button> </div> <div class="submit"> <button type="submit"> Explore </button> </div> </form> </section> <div class="long-scroll-preloader prize-explorer-preloader" style="text-align: center; display: none" data-target="6746a8b5edc1e"> <img style="display: inline-block" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/images/spinner.gif"> </div> <div class="prize-explorer-content container search-results" data-target="6746a8b5edc1e"> </div> </div> </div> </main> <footer class="site-footer" role="contentinfo"> <div class="container"> <section class="footer-information"> <h4 class="heading"> <a href="/the-nobel-prize-organisation/">About the Nobel Prize organisation</a> </h4> <div class="footer-sections"> <div class="footer-section"> <h5> <a href="/the-nobel-prize-organisation/the-nobel-foundation/">The Nobel Foundation</a> </h5> <p>Tasked with a mission to manage Alfred Nobel's fortune and has聽ultimate responsibility for fulfilling the intentions of Nobel's will.</p> </div> <div class="footer-section"> <h5> <a href="/the-nobel-prize-organisation/prize-awarding-institutions/">The prize-awarding institutions</a> </h5> <p>For more than a century, these academic institutions have worked independently to select Nobel Prize laureates.</p> </div> <div class="footer-section"> <h5> <a href="/the-nobel-prize-organisation/outreach-organisations/">Outreach organisations</a> </h5> <p>Several outreach organisations and activities have been developed to inspire generations and disseminate knowledge about the Nobel Prize.</p> </div> </div> </section> <section class="footer-nav"> <nav class="footer-menu" role="navigation" itemscope="itemscope" itemtype="http://schema.org/SiteNavigationElement"> <ul id="menu-footer_col_1" class="footer-column-items" role="menu"><li id="menu-item-28266" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28266" role="menuitem"><a href="https://www.nobelprize.org/press-room/">Press</a></li> <li id="menu-item-42845" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-42845" role="menuitem"><a href="https://www.nobelprize.org/contact">Contact</a></li> <li id="menu-item-28265" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28265" role="menuitem"><a href="https://www.nobelprize.org/frequently-asked-questions/">FAQ</a></li> </ul> </nav> <nav class="footer-menu" role="navigation" itemscope="itemscope" itemtype="http://schema.org/SiteNavigationElement"> <ul id="menu-footer_col_2" class="footer-column-items" role="menu"><li id="menu-item-28268" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28268" role="menuitem"><a href="/about/privacy-policy/">Privacy policy</a></li> <li id="menu-item-28269" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28269" role="menuitem"><a href="/about/technical-support/">Technical support</a></li> <li id="menu-item-42844" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-42844" role="menuitem"><a href="/about/terms-of-use/">Terms of use</a></li> </ul> </nav> <nav class="footer-menu" role="navigation" itemscope="itemscope" itemtype="http://schema.org/SiteNavigationElement"> <ul id="menu-footer_col_3" class="footer-column-items" role="menu"><li id="menu-item-28272" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-28272" role="menuitem"><a href="/about/developer-zone/">For developers</a></li> <li id="menu-item-42843" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-42843" role="menuitem"><a href="/mediaplayer/">Media player</a></li> <li id="menu-item-224329" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-224329" role="menuitem"><a href="https://careers.nobelprize.org">Careers</a></li> </ul> </nav> <nav class="footer-menu footer-social" role="navigation" itemscope="itemscope" itemtype="http://schema.org/SiteNavigationElement"> <h6> Join us </h6> <ul id="menu-footer_social" class="socialmenu"><li id="menu-item-28273" class="facebook menu-item menu-item-type-custom menu-item-object-custom menu-item-28273" role="menuitem"><a href="https://www.facebook.com/nobelprize/"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path d="M14.526 34h-3.96A4.572 4.572 0 0 1 6 29.43V10.57C6 8.051 8.051 6 10.571 6H29.43A4.577 4.577 0 0 1 34 10.57v18.854c0 2.52-2.051 4.57-4.571 4.57h-3.492a.573.573 0 0 1-.571-.571V22.305c0-.314.257-.571.571-.571h2.229l.405-3.228h-2.634a.573.573 0 0 1-.571-.571v-3.28c0-.314.257-.57.571-.57h2.709v-3.229h-4.892a1.62 1.62 0 0 0-1.617 1.617v5.462a.573.573 0 0 1-.571.571h-2.709v3.228h2.709c.314 0 .571.257.571.571v11.118a.59.59 0 0 1-.166.406c-.148.148-.171.171-7.44.171h-.005ZM10.57 7.143a3.43 3.43 0 0 0-3.428 3.427v18.854a3.43 3.43 0 0 0 3.423 3.428h10.423V22.87H18.28a.573.573 0 0 1-.571-.572v-4.37c0-.314.257-.571.571-.571h2.709v-4.89c0-1.52 1.24-2.76 2.76-2.76h5.462c.315 0 .572.257.572.571v4.37a.573.573 0 0 1-.572.572h-2.708v2.137h2.708a.56.56 0 0 1 .429.194c.109.126.16.286.137.451l-.548 4.37a.573.573 0 0 1-.566.504h-2.16v9.975h2.92a3.43 3.43 0 0 0 3.428-3.428V10.57a3.43 3.43 0 0 0-3.428-3.427H10.57Z"></path></svg> <span class="screen-reader-text">Facebook</span> </a></li> <li id="menu-item-28274" class="twitter menu-item menu-item-type-custom menu-item-object-custom menu-item-28274" role="menuitem"><a href="https://twitter.com/NobelPrize"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M11.143 6h17.714A5.148 5.148 0 0 1 34 11.143v17.714A5.148 5.148 0 0 1 28.857 34H11.143A5.148 5.148 0 0 1 6 28.857V11.143A5.148 5.148 0 0 1 11.143 6Zm17.714 26.857c2.205 0 4-1.795 4-4V11.143c0-2.205-1.795-4-4-4H11.143c-2.205 0-4 1.795-4 4v17.714c0 2.205 1.795 4 4 4h17.714Zm-.995-22.384a.572.572 0 0 1 .847.768l-6.933 7.65 6.977 9.923a.572.572 0 0 1-.468.9h-3.714a.571.571 0 0 1-.468-.243l-5.205-7.404-6.76 7.46a.57.57 0 0 1-.808.04.572.572 0 0 1-.04-.808l6.934-7.65-6.977-9.923a.572.572 0 0 1 .468-.9h3.714c.186 0 .36.09.467.243l5.206 7.404 6.76-7.46Zm-15.047.956L24.869 28.57h2.317L15.132 11.43h-2.317Z" clip-rule="evenodd"></path></svg> <span class="screen-reader-text">Twitter</span> </a></li> <li id="menu-item-43144" class="instagram menu-item menu-item-type-custom menu-item-object-custom menu-item-43144" role="menuitem"><a href="https://www.instagram.com/nobelprize_org/?hl=en"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M28.857 34H11.143A5.15 5.15 0 0 1 6 28.857V11.143A5.15 5.15 0 0 1 11.143 6h17.714A5.15 5.15 0 0 1 34 11.143v17.714A5.15 5.15 0 0 1 28.857 34ZM11.143 7.143c-2.206 0-4 1.794-4 4v17.714c0 2.206 1.794 4 4 4h17.714c2.206 0 4-1.794 4-4V11.143c0-2.206-1.794-4-4-4H11.143Zm8.857 20c-3.937 0-7.143-3.206-7.143-7.143s3.206-7.143 7.143-7.143 7.143 3.206 7.143 7.143-3.206 7.143-7.143 7.143ZM20 14c-3.309 0-6 2.691-6 6s2.691 6 6 6 6-2.691 6-6-2.691-6-6-6Zm6-2.286a2.285 2.285 0 1 0 4.57.001 2.285 2.285 0 0 0-4.57 0Zm1.143 0c0-.628.514-1.143 1.143-1.143.628 0 1.143.515 1.143 1.143 0 .629-.515 1.143-1.143 1.143a1.146 1.146 0 0 1-1.143-1.143Z" clip-rule="evenodd"></path></svg> <span class="screen-reader-text">Instagram</span> </a></li> <li id="menu-item-43145" class="youtube menu-item menu-item-type-custom menu-item-object-custom menu-item-43145" role="menuitem"><a href="https://www.youtube.com/thenobelprize"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M11.143 34h17.714A5.15 5.15 0 0 0 34 28.857V11.143A5.15 5.15 0 0 0 28.857 6H11.143A5.15 5.15 0 0 0 6 11.143v17.714A5.15 5.15 0 0 0 11.143 34Zm-4-22.857c0-2.206 1.794-4 4-4h17.714c2.206 0 4 1.794 4 4v17.714c0 2.206-1.794 4-4 4H11.143c-2.206 0-4-1.794-4-4V11.143Zm20.2 15.143H12.65a2.753 2.753 0 0 1-2.748-2.749v-7.074a2.753 2.753 0 0 1 2.748-2.749h14.692a2.753 2.753 0 0 1 2.748 2.749v7.074a2.753 2.753 0 0 1-2.748 2.749ZM12.65 14.857c-.885 0-1.605.72-1.605 1.606v7.074c0 .886.72 1.606 1.605 1.606h14.692c.886 0 1.606-.72 1.606-1.606v-7.074c0-.886-.72-1.606-1.606-1.606H12.65Zm5.643 8.766a.753.753 0 0 1-.746-.749l-.022-5.748c0-.275.148-.526.383-.657a.753.753 0 0 1 .76.017l4.537 2.8a.746.746 0 0 1 .354.628.77.77 0 0 1-.337.64l-4.52 2.949a.766.766 0 0 1-.409.12Zm0 0h.003-.006.003Zm.375-5.794.017 4.32 3.394-2.218-3.411-2.108v.006Z" clip-rule="evenodd"></path></svg> <span class="screen-reader-text">Youtube</span> </a></li> <li id="menu-item-164548" class="linkedin menu-item menu-item-type-custom menu-item-object-custom menu-item-164548" role="menuitem"><a href="https://www.linkedin.com/company/nobelprize/"> <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><path fill-rule="evenodd" d="M12.909 14.251a2.557 2.557 0 0 1-2.555-2.554 2.56 2.56 0 0 1 2.555-2.554 2.56 2.56 0 0 1 2.554 2.554 2.56 2.56 0 0 1-2.554 2.554Zm0-3.965c-.778 0-1.412.634-1.412 1.411s.634 1.412 1.412 1.412c.777 0 1.411-.635 1.411-1.412 0-.777-.634-1.411-1.411-1.411Z" clip-rule="evenodd"></path><path d="M28.771 28.211c0 .315.258.572.572.572l-.006-.006a.573.573 0 0 0 .572-.571v-7.292c0-3.605-2.509-4.891-4.852-4.891-1.457 0-2.497.383-3.44 1v-.532a.573.573 0 0 0-.571-.571h-3.612a.573.573 0 0 0-.571.571v11.715c0 .314.257.571.571.571a.573.573 0 0 0 .572-.571V17.063h2.468v1.108a.574.574 0 0 0 .943.44c1.057-.891 2.034-1.44 3.646-1.44 1.114 0 3.708.366 3.708 3.749v7.291ZM14.611 28.783a.573.573 0 0 1-.571-.572V17.07h-2.543V28.21a.573.573 0 0 1-.571.572.573.573 0 0 1-.572-.572V16.497c0-.314.257-.571.572-.571h3.685c.315 0 .572.257.572.571v11.714a.573.573 0 0 1-.572.572Z"></path><path d="M25.657 28.783a.573.573 0 0 1-.571-.572V22.83c0-1.286-.412-1.738-1.577-1.738-1.252 0-1.886.458-1.886 1.355v5.765a.573.573 0 0 1-.572.572.573.573 0 0 1-.571-.572v-5.765c0-1.56 1.131-2.497 3.029-2.497 1.897 0 2.72.971 2.72 2.88v5.382a.573.573 0 0 1-.572.572Z"></path><path fill-rule="evenodd" d="M11.143 34h17.714A5.15 5.15 0 0 0 34 28.857V11.143A5.15 5.15 0 0 0 28.857 6H11.143A5.15 5.15 0 0 0 6 11.143v17.714A5.15 5.15 0 0 0 11.143 34Zm-4-22.857c0-2.206 1.794-4 4-4h17.714c2.206 0 4 1.794 4 4v17.714c0 2.206-1.794 4-4 4H11.143c-2.206 0-4-1.794-4-4V11.143Z" clip-rule="evenodd"></path></svg> <span class="screen-reader-text">LinkedIn</span> </a></li> </ul> </nav> </section> <section class="colophon border-top"> <div class="footer-logo" itemscope itemtype="http://schema.org/Organization"> <p class="site-logo" itemprop="logo"> <a itemprop="url" href="https://www.nobelprize.org"> The Nobel Prize </a> </p> </div> <div class="copyright"> Copyright © Nobel Prize Outreach AB 2024 </div> </section> </div> </footer> <button type="button" class="to-top" tabindex="-1"> <span class="screen-reader-text"> Scroll to top </span> <svg xmlns="http://www.w3.org/2000/svg" width="45.999" height="26.001" viewBox="0 0 45.999 26.001"><path xmlns="http://www.w3.org/2000/svg" fill="#FFF" d="M5.905 24.997a3.484 3.484 0 0 1-4.893 0 3.403 3.403 0 0 1 0-4.845l19.54-19.149a3.486 3.486 0 0 1 4.895 0l19.538 19.15a3.4 3.4 0 0 1 0 4.845 3.485 3.485 0 0 1-4.893.001L22.999 9.294z"/></svg></button> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script type="text/javascript" src="https://www.nobelprize.org/wp-content/plugins/nobelprize-block-library/dist/js/frontend.js?ver=9af3caa4ba4635a79486" id="nobelprize_block_library_frontend-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/dist/js/frontend.js?ver=0fc4ea04d626abf846ed" id="frontend-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/js/frontend/lib/bgset/ls.bgset.min.js?ver=1732293022" id="lazy-sizes-bg-set-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/js/frontend/lib/lazysizes/lazysizes.min.js?ver=1732293022" id="lazy-sizes-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/js/frontend/lib/objectfit/ls.object-fit.min.js?ver=1732293022" id="lazy-sizes-object-fit-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/plugins/nobelprize/assets/js/admin/lib/flickity/flickity.pkgd.js?ver=1732293022" id="flickity-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-content/themes/nobelprize/assets/js/frontend/lib/clamp/clamp.min.js?ver=1732293022" id="clamp-js"></script> <script type="text/javascript" src="https://stats.wp.com/e-202448.js" id="jetpack-stats-js" data-wp-strategy="defer"></script> <script type="text/javascript" id="jetpack-stats-js-after"> /* <![CDATA[ */ _stq = window._stq || []; _stq.push([ "view", JSON.parse("{\"v\":\"ext\",\"blog\":\"197939892\",\"post\":\"0\",\"tz\":\"1\",\"srv\":\"www.nobelprize.org\",\"j\":\"1:13.9.1\"}") ]); _stq.push([ "clickTrackerInit", "197939892", "0" ]); /* ]]> */ </script> <script type="text/javascript" src="https://www.nobelprize.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1" id="jquery-core-js"></script> <script type="text/javascript" src="https://www.nobelprize.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1" id="jquery-migrate-js"></script> <script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"bam.eu01.nr-data.net","licenseKey":"NRJS-0940f7eaf4cb46e1cfe","applicationID":"212354543","transactionName":"MhBSZQoZXUZZB0UMCwtac0QLDFxYFyZdCgNFJVFWHQ==","queueTime":0,"applicationTime":249,"atts":"HldFE0IDThkaBRNfHxgI","errorBeacon":"bam.eu01.nr-data.net","agent":""}</script></body> </html>