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typeof="mw:File/Thumb"><a href="/wiki/File:Atomic_Energy_Laboratory.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Atomic_Energy_Laboratory.jpg/220px-Atomic_Energy_Laboratory.jpg" decoding="async" width="220" height="196" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Atomic_Energy_Laboratory.jpg/330px-Atomic_Energy_Laboratory.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Atomic_Energy_Laboratory.jpg/440px-Atomic_Energy_Laboratory.jpg 2x" data-file-width="3680" data-file-height="3280" /></a><figcaption>Confezione aperta del Gilbert U-238 Atomic Energy Laboratory</figcaption></figure><p>Il <b>Gilbert U-238 Atomic Energy Laboratory</b> fu un laboratorio giocattolo progettato per consentire ai bambini di creare e osservare reazioni <a href="/wiki/Chimica_nucleare" title="Chimica nucleare">chimiche nucleari</a> utilizzando materiale <a href="/wiki/Radioattivo" class="mw-redirect" title="Radioattivo">radioattivo</a>. L'Atomic Energy Lab fu realizzato dalla AC Gilbert Company nel 1950.<sup id="cite_ref-Museo_1-0" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=1" title="Modifica la sezione Storia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=1" title="Edit section's source code: Storia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L’“euforia atomica”<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> diede un forte impulso ai film di fantascienza e portò anche allo sviluppo di giocattoli con componenti radioattivi come il Gilbert U-238. Quando fu lanciato sul mercato, il laboratorio per l'energia atomica era uno dei prodotti leader sul mercato dei kit sperimentali in termini di volume di fornitura e numero di oltre 150 esperimenti possibili.<sup id="cite_ref-IEE_3-0" class="reference"><a href="#cite_note-IEE-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Flyer_4-0" class="reference"><a href="#cite_note-Flyer-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Furono realizzate due versioni del kit dal contenuto identico.<sup id="cite_ref-Museum_5-0" class="reference"><a href="#cite_note-Museum-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Quando la produzione fu interrotta dopo soli due anni, erano stati venduti meno di 5 000 kit di esperimenti.<sup id="cite_ref-IEE_3-1" class="reference"><a href="#cite_note-IEE-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> La sua commercializzazione durò così poco a causa dell'alto prezzo di vendita e della sua complicata modalità di gioco.<sup id="cite_ref-Museum_5-1" class="reference"><a href="#cite_note-Museum-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Il Gilbert U-238 Atomic Energy Laboratory non fu l'unico gioco contenente uranio a essere commercializzato; la concorrente fabbrica Porter Chemical Company mise in vendita, nello stesso periodo, due simili set venduti al più basso prezzo di $10 e $25 ciascuno.<sup id="cite_ref-IEE_3-2" class="reference"><a href="#cite_note-IEE-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Descrizione">Descrizione</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=2" title="Modifica la sezione Descrizione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=2" title="Edit section's source code: Descrizione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Gilbert_cloud_chamber_pp_2006.069.035.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Gilbert_cloud_chamber_pp_2006.069.035.jpg/220px-Gilbert_cloud_chamber_pp_2006.069.035.jpg" decoding="async" width="220" height="205" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Gilbert_cloud_chamber_pp_2006.069.035.jpg/330px-Gilbert_cloud_chamber_pp_2006.069.035.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/df/Gilbert_cloud_chamber_pp_2006.069.035.jpg/440px-Gilbert_cloud_chamber_pp_2006.069.035.jpg 2x" data-file-width="750" data-file-height="700" /></a><figcaption><a href="/wiki/Camera_a_nebbia" title="Camera a nebbia">Camera a nebbia</a> Gilbert</figcaption></figure> <p>Il laboratorio conteneva una <a href="/wiki/Camera_a_nebbia" title="Camera a nebbia">camera a nebbia</a> che permetteva allo spettatore di osservare le particelle alfa che viaggiavano a 12 000 miglia al secondo (19 000 000 m/s), uno <a href="/wiki/Spintariscopio" title="Spintariscopio">spintariscopio</a> che mostrava i risultati della disintegrazione radioattiva su uno schermo fluorescente e un <a href="/wiki/Elettroscopio" title="Elettroscopio">elettroscopio</a> che misurava la radioattività di diverse sostanze nel set. Le istruzioni incoraggiavano la pulizia del laboratorio avvertendo gli utenti di non rompere i sigilli su tre dei barattoli dei campioni di minerale, perché "tendono a sfaldarsi e sbriciolarsi e si correrebbe il rischio di avere minerale radioattivo sparso nel proprio laboratorio. Questo aumenterà il livello della <a href="/wiki/Fondo_di_radioattivit%C3%A0_naturale" title="Fondo di radioattività naturale">radiazione di fondo naturale</a>", compromettendo così i risultati degli esperimenti distorcendo le prestazioni del <a href="/wiki/Contatore_Geiger" title="Contatore Geiger">contatore Geiger</a>.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Contenuto_della_confezione">Contenuto della confezione</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=3" title="Modifica la sezione Contenuto della confezione" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=3" title="Edit section's source code: Contenuto della confezione"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Il set, originariamente venduto per <a href="/wiki/Dollaro_statunitense" title="Dollaro statunitense">$</a> 49,50, era custodito in una scatola dalle dimensioni di 25"×16½"×5"<sup id="cite_ref-Flyer_4-1" class="reference"><a href="#cite_note-Flyer-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> e conteneva: </p> <ul><li>un <a href="/wiki/Contatore_Geiger" title="Contatore Geiger">contatore Geiger-Müller</a> alimentato a batterie;<sup id="cite_ref-Museo_1-1" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>un <a href="/wiki/Elettroscopio" title="Elettroscopio">elettroscopio</a>;<sup id="cite_ref-Museo_1-2" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>una camera a nebbia di <a href="/wiki/Charles_Thomson_Rees_Wilson" title="Charles Thomson Rees Wilson">Wilson</a> con <a href="/wiki/Particella_%CE%B1" title="Particella α">sorgente alfa</a> di breve durata (<a href="/wiki/Polonio-210" class="mw-redirect" title="Polonio-210">polonio-210</a>);<sup id="cite_ref-Museo_1-3" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>quattro barattoli di vetro contenenti campioni di minerale contenente <a href="/wiki/Uranio" title="Uranio">uranio</a> naturale (U-238) provenienti dal <a href="/wiki/Colorado" title="Colorado">Colorado</a>;<sup id="cite_ref-Museo_1-4" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>sorgenti di radiazioni a basso livello Ru-106 (<a href="/wiki/Particella_%CE%B2" title="Particella β">con emissione beta</a>) e Zn-65 (<a href="/wiki/Raggi_gamma" title="Raggi gamma">con emissione gamma</a>);<sup id="cite_ref-Museo_1-5" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>un manuale di istruzioni di 60 pagine scritto da <a href="/w/index.php?title=Ralph_Eugene_Lapp&action=edit&redlink=1" class="new" title="Ralph Eugene Lapp (la pagina non esiste)">Ralph Eugene Lapp</a>;<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Museo_1-6" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></li> <li>un'introduzione a fumetti alla radioattività, scritta da <a href="/w/index.php?title=John_Ray_Dunning&action=edit&redlink=1" class="new" title="John Ray Dunning (la pagina non esiste)">John Ray Dunning</a> e da <a href="/wiki/Leslie_Groves" title="Leslie Groves">Leslie Groves</a>.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Museo_1-7" class="reference"><a href="#cite_note-Museo-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Nelle vignette apparivano i popolari personaggi di <a href="/wiki/Blondie_e_Dagoberto" title="Blondie e Dagoberto">Blondie e Dagoberto</a> e <a href="/wiki/Mandrake_il_mago" title="Mandrake il mago">Mandrake il mago</a>;<sup id="cite_ref-IEE_3-3" class="reference"><a href="#cite_note-IEE-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li> <li>uno spintariscopio;<sup id="cite_ref-Flyer_4-2" class="reference"><a href="#cite_note-Flyer-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></li> <li><i>Prospecting for Uranium</i>,<sup id="cite_ref-Flyer_4-3" class="reference"><a href="#cite_note-Flyer-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> un libro del 1949 pubblicato congiuntamente dalla <a href="/wiki/Commissione_per_l%27energia_atomica_degli_Stati_Uniti_d%27America" title="Commissione per l'energia atomica degli Stati Uniti d'America">Commissione per l'energia atomica degli Stati Uniti</a> e dall'<a href="/wiki/United_States_Geological_Survey" title="United States Geological Survey">United States Geological Survey</a>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Pericoli">Pericoli</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=4" title="Modifica la sezione Pericoli" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=4" title="Edit section's source code: Pericoli"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Nel 2006, la pubblicazione di cultura pop <i>Radar Magazine</i> ha definito il set da laboratorio uno dei "10 giocattoli più pericolosi di tutti i tempi", a causa del materiale radioattivo che conteneva. Non sono stati studiati gli effetti che l'esposizione al materiale radioattivo ha potuto causare nei bambini, ma è noto che l'isotopo U-238 è causa di tumori, leucemie e linfomi.<sup id="cite_ref-radaronline_9-0" class="reference"><a href="#cite_note-radaronline-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Mentre le avvertenze pubblicate nel manuale tranquillizzavano i genitori dei bambini, sottolineando che i pericoli della radioattività erano spesso sopravvalutati e che il gioco non era pericoloso, purché non fossero stati aperti i barattoli contenenti il materiale radioattivo che non doveva essere disperso per casa, il pieghevole evidenziava che la radioattività avrebbe, nel futuro, alimentato i sottomarini, curato il cancro e reso il cibo migliore; nel frattempo invitava a ignorare le "fastidiose dicerie circa la pericolosità delle radiazioni".<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=5" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=5" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Museo-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Museo_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-1">b</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-2">c</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-3">d</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-4">e</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-5">f</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-6">g</a></i></sup> <sup><i><a href="#cite_ref-Museo_1-7">h</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://www.museodellaradioattivita.it/ft_item.php?id=521#:~:text=Risale%20al%201950%20questo%20%E2%80%9Cgiocattolo,materiale%20radioattivo%20contenuto%20nella%20confezione."><span style="font-style:italic;">Museo della radioattività</span></a>, su <span style="font-style:italic;">www.museodellaradioattivita.it</span>. <small>URL consultato il 6 maggio 2024</small>.</cite></span> </li> <li id="cite_note-2"><a href="#cite_ref-2"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="tedesco">DE</abbr></span>) <a rel="nofollow" class="external text" href="https://blog.deutsches-museum.de/2015/06/05/ein-besonderes-spielzeug-das-gilbert-u-238-atomic-energy-lab-von-1952"><span style="font-style:italic;">Ein besonderes Spielzeug: Das Gilbert U-238 Atomic Energy Lab von 1952 - Deutsches Museum</span></a>, su <span style="font-style:italic;">blog.deutsches-museum.de</span>, 5 giugno 2015. <small>URL consultato il 6 maggio 2024</small>.</cite></span> </li> <li id="cite_note-IEE-3"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-IEE_3-0">a</a></i></sup> <sup><i><a href="#cite_ref-IEE_3-1">b</a></i></sup> <sup><i><a href="#cite_ref-IEE_3-2">c</a></i></sup> <sup><i><a href="#cite_ref-IEE_3-3">d</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://spectrum.ieee.org/fun-and-uranium-for-the-whole-family-in-this-1950s-science-kit"><span style="font-style:italic;">Fun—and Uranium—for the Whole Family in This 1950s Science Kit - IEEE Spectrum</span></a>, su <span style="font-style:italic;">spectrum.ieee.org</span>. <small>URL consultato il 6 maggio 2024</small>.</cite></span> </li> <li id="cite_note-Flyer-4"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Flyer_4-0">a</a></i></sup> <sup><i><a href="#cite_ref-Flyer_4-1">b</a></i></sup> <sup><i><a href="#cite_ref-Flyer_4-2">c</a></i></sup> <sup><i><a href="#cite_ref-Flyer_4-3">d</a></i></sup></span> <span class="reference-text"><cite class="citation testo" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://americanflyerexpress.com/wordpress/wp-content/uploads/2018/04/1950-Gilbert-Catalog-D1604-Pages.pdf"><span style="font-style:italic;">Atomic Energy Lab</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), p. 8.</cite></span> </li> <li id="cite_note-Museum-5"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Museum_5-0">a</a></i></sup> <sup><i><a href="#cite_ref-Museum_5-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://orau.org/health-physics-museum/collection/toys/gilbert-u-238-atomic-energy-lab.html"><span style="font-style:italic;">Gilbert U-238 Atomic Energy Lab (1950-1951)</span></a>, su <span style="font-style:italic;">Museum of Radiation and Radioactivity</span>. <small>URL consultato il 6 maggio 2024</small>.</cite></span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://science-notebook.com/gilb-atomic01.html"><span style="font-style:italic;">Gilbert Atomic Energy - Part I</span></a>, su <span style="font-style:italic;">science-notebook.com</span>. <small>URL consultato il 6 maggio 2024</small>.</cite></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text">Ralph Eugene Lapp ha partecipato al <a href="/wiki/Progetto_Manhattan" title="Progetto Manhattan">Progetto Manhattan</a>.</span> </li> <li id="cite_note-8"><a href="#cite_ref-8"><b>^</b></a> <span class="reference-text">Il generale Leslie Groves è stato direttore del Progetto Manhattan.</span> </li> <li id="cite_note-radaronline-9"><a href="#cite_ref-radaronline_9-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://web.archive.org/web/20061216014930/http://www.radaronline.com/features/2006/12/gilbert_u238_atomic_energy_lab.php"><span style="font-style:italic;">Features: Radar Online</span></a>, su <span style="font-style:italic;">web.archive.org</span>, 16 dicembre 2006. <small>URL consultato il 6 maggio 2024</small> <small>(archiviato dall'<abbr title="http://www.radaronline.com/features/2006/12/gilbert_u238_atomic_energy_lab.php">url originale</abbr> il 16 dicembre 2006)</small>.</cite></span> </li> <li id="cite_note-10"><a href="#cite_ref-10"><b>^</b></a> <span class="reference-text"><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Bruce Watson, <a rel="nofollow" class="external text" href="https://archive.org/details/manwhochangedhow00wats/page/178/mode/2up"><span style="font-style:italic;">The man who changed how boys and toys were made</span></a>, New York, Viking, 2002, pp. 179–181, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0670031344" title="Speciale:RicercaISBN/978-0670031344">978-0670031344</a>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=6" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=6" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Gilbert U-238 Atomic Energy Lab"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Gilbert_U-238_Atomic_Energy_Lab?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Gilbert_U-238_Atomic_Energy_Lab?uselang=it">Gilbert U-238 Atomic Energy Laboratory</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&veaction=edit&section=7" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gilbert_U-238_Atomic_Energy_Laboratory&action=edit&section=7" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.nuclearmuseum.org/virtual/vex1/D161482C-D525-4CE7-814E-955192691390.htm"><span style="font-style:italic;">Gilbert U-238 Atomic Energy Lab</span></a>, su <span style="font-style:italic;">nuclearmuseum.org</span>.</cite></li></ul> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-basis: calc( 100% / 2 - 8px / 2 );"><style 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