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class="row"><div class="col-sm-12 col-md-9"> <div id="contentSub"></div>  <div id="mw-content-text"><div class="mw-specialpage-summary"> <p>Track the most recent changes to the wiki on this page. </p> </div> <fieldset class="rcoptions"> <legend>Recent changes options</legend> <div class="mw-changeslist-legend"><strong>Legend:</strong><div class="mw-collapsible-content"><dl> <dt class="newpage">N</dt> <dd class="mw-changeslist-legend-newpage">This edit created a new page (also see <a href="/web/20170704214303/http://ethw.org/Special:NewPages" title="Special:NewPages">list of new pages</a>)</dd> <dt class="minoredit">m</dt> <dd class="mw-changeslist-legend-minor">This is a minor edit</dd> <dt class="botedit">b</dt> <dd class="mw-changeslist-legend-bot">This edit was performed by a bot</dd> <dt class="mw-plusminus-pos">(<em>±123</em>)</dt> <dd class="mw-changeslist-legend-plusminus">The page size changed by this number of bytes</dd> </dl> </div></div> <span class="rclinks">Show last <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&limit=50" title="Special:RecentChanges">50</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&limit=100" title="Special:RecentChanges">100</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&limit=250" title="Special:RecentChanges">250</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&limit=500" title="Special:RecentChanges"><strong>500</strong></a> changes in last <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&days=1&from=&limit=500" title="Special:RecentChanges">1</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&days=3&from=&limit=500" title="Special:RecentChanges">3</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&days=7&from=&limit=500" title="Special:RecentChanges"><strong>7</strong></a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&days=14&from=&limit=500" title="Special:RecentChanges">14</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&days=30&from=&limit=500" title="Special:RecentChanges">30</a> days<br/><span class="rcshowhide"><span class="rcshowhideminor rcshowhideoption"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&hideminor=1&limit=500" title="Special:RecentChanges">Hide</a> minor edits</span> | <span class="rcshowhidebots rcshowhideoption"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&hidebots=0&limit=500" title="Special:RecentChanges">Show</a> bots</span> | <span class="rcshowhideanons rcshowhideoption"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&hideanons=1&limit=500" title="Special:RecentChanges">Hide</a> anonymous users</span> | <span class="rcshowhideliu rcshowhideoption"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&hideliu=1&limit=500" title="Special:RecentChanges">Hide</a> registered users</span> | <span class="rcshowhidemine rcshowhideoption"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&hidemyself=1&limit=500" title="Special:RecentChanges">Hide</a> my edits</span></span></span><br/><span class="rclistfrom"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Special:RecentChanges&from=20170704214303&limit=500" title="Special:RecentChanges">Show new changes starting from 21:43, 4 July 2017</a></span> <hr/> <form action="/web/20170704214303/http://ethw.org/w/index.php"><table class="mw-recentchanges-table"><tr><td class="mw-label mw-namespace-label"><label for="namespace">Namespace:</label></td><td class="mw-input"><select id="namespace" name="namespace"> <option value="" selected="">all</option> <option value="0">(Main)</option> <option value="1">Talk</option> <option value="2">User</option> <option value="3">User talk</option> <option value="4">ETHW</option> <option value="5">ETHW talk</option> <option value="6">File</option> <option value="7">File talk</option> <option value="8">MediaWiki</option> <option value="9">MediaWiki talk</option> <option value="10">Template</option> <option value="11">Template talk</option> <option value="12">Help</option> <option value="13">Help talk</option> <option value="14">Category</option> <option value="15">Category talk</option> <option value="90">Thread</option> <option value="91">Thread talk</option> <option value="92">Summary</option> <option value="93">Summary talk</option> <option value="100">First-Hand</option> <option value="101">First-Hand talk</option> <option value="102">Milestones</option> <option value="103">Milestones talk</option> <option value="104">Milestone-Proposal</option> <option value="105">Milestone-Proposal talk</option> <option value="106">Milestone-Nomination</option> <option value="107">Milestones-Nomination talk</option> <option value="108">Oral-History</option> <option value="109">Oral-History talk</option> <option value="110">Archives</option> <option value="111">Archives talk</option> <option value="112">ASME-Landmark</option> <option value="113">ASME-Landmark talk</option> <option value="114">ASCE-Landmark</option> <option value="115">ASCE-Landmark talk</option> <option value="116">Member</option> <option value="117">Member talk</option> <option value="140">Education</option> <option value="141">Education talk</option> <option value="142">Property</option> <option value="143">Property talk</option> <option value="144">Type</option> <option value="145">Type talk</option> <option value="146">Form</option> <option value="147">Form talk</option> <option value="148">Concept</option> <option value="149">Concept talk</option> <option value="274">Widget</option> <option value="275">Widget talk</option> </select> <input name="invert" type="checkbox" value="1" id="nsinvert" title="Check this box to hide changes to pages within the selected namespace (and the associated namespace if checked)"/> <label for="nsinvert" title="Check this box to hide changes to pages within the selected namespace (and the associated namespace if checked)">Invert selection</label> <input name="associated" type="checkbox" value="1" id="nsassociated" title="Check this box to also include the talk or subject namespace associated with the selected namespace"/> <label for="nsassociated" title="Check this box to also include the talk or subject namespace associated with the selected namespace">Associated namespace</label></td></tr><tr><td class="mw-label mw-tagfilter-label"><label for="tagfilter"><a href="/web/20170704214303/http://ethw.org/Special:Tags" title="Special:Tags">Tag</a> filter:</label></td><td class="mw-input"><input name="tagfilter" size="20" value="" class="mw-tagfilter-input mw-ui-input mw-ui-input-inline" id="tagfilter"/> <input type="submit" value="Show"/></td></tr></table><input type="hidden" value="500" name="limit"/><input type="hidden" value="Special:RecentChanges" name="title"/></form> </fieldset> <div class="mw-changeslist"><h4>4 July 2017</h4> <div><table class="mw-changeslist-ns100-The_Nickel_Plate_Gold_Mine_and_the_Bering_River_Coal_Field mw-changeslist-line-not-watched mw-enhanced-rc mw-tag-visualeditor"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     11:31 </td><td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/First-Hand:The_Nickel_Plate_Gold_Mine_and_the_Bering_River_Coal_Field" title="First-Hand:The Nickel Plate Gold Mine and the Bering River Coal Field" class="mw-changeslist-title">First-Hand:The Nickel Plate Gold Mine and the Bering River Coal Field</a></span>‎ (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:The_Nickel_Plate_Gold_Mine_and_the_Bering_River_Coal_Field&curid=47831&diff=155433&oldid=153435" tabindex="1">diff</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:The_Nickel_Plate_Gold_Mine_and_the_Bering_River_Coal_Field&curid=47831&action=history" title="First-Hand:The Nickel Plate Gold Mine and the Bering River Coal Field">hist</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="123,727 bytes after change">(+40)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Rrphillips" title="User:Rrphillips" class="mw-userlink">Rrphillips</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Rrphillips" title="User talk:Rrphillips">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Rrphillips" title="Special:Contributions/Rrphillips">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/First-Hand:The_Nickel_Plate_Gold_Mine_and_the_Bering_River_Coal_Field#The_Bering_River_Coal_Field" title="First-Hand:The Nickel Plate Gold Mine and the Bering River Coal Field">→</a>‎<span dir="auto"><span class="autocomment">The Bering River Coal Field</span></span>)</span> <span class="mw-tag-markers">(<a href="/web/20170704214303/http://ethw.org/Special:Tags" title="Special:Tags">Tag</a>: <span class="mw-tag-marker mw-tag-marker-visualeditor"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=ETHW:VisualEditor&action=edit&redlink=1" class="new" title="ETHW:VisualEditor (page does not exist)">Visual edit</a></span>)</span></td></tr></table> <table class="mw-collapsible mw-collapsed mw-enhanced-rc mw-changeslist-ns0-Eimac mw-changeslist-line-not-watched "> <tr> <td> <span class="mw-collapsible-toggle mw-collapsible-arrow mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span> </td> <td class="mw-enhanced-rc">     01:46 </td> <td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/Eimac" title="Eimac" class="mw-changeslist-title">Eimac</a></span>‎‎ (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&diff=155432&oldid=155368" title="Eimac">2 changes</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&action=history" title="Eimac">history</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="19,028 bytes after change">(+252)</span>‎ <span class="mw-changeslist-separator">. .</span> <span class="changedby">[<a href="/web/20170704214303/http://ethw.org/User:K3hz" title="User:K3hz" class="mw-userlink">K3hz</a>‎ (2×)]</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&oldid=155432" title="Eimac">01:46</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&diff=0&oldid=155432" tabindex="2">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&diff=155432&oldid=155431" title="Eimac">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-neg" title="19,028 bytes after change">(-96)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:K3hz" title="User:K3hz" class="mw-userlink">K3hz</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:K3hz" title="User talk:K3hz">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/K3hz" title="Special:Contributions/K3hz">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/Eimac#Acknowledgements_and_request_for_comments.2C_photos.2C_memorabilia_etc." title="Eimac">→</a>‎<span dir="auto"><span class="autocomment">Acknowledgements and request for comments, photos, memorabilia etc.: </span> contact</span>)</span> <span class="mw-tag-markers">(<a href="/web/20170704214303/http://ethw.org/Special:Tags" title="Special:Tags">Tag</a>: <span class="mw-tag-marker mw-tag-marker-visualeditor"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=ETHW:VisualEditor&action=edit&redlink=1" class="new" title="ETHW:VisualEditor (page does not exist)">Visual edit</a></span>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc"> <abbr class="minoredit" title="This is a minor edit">m</abbr>   </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&oldid=155431" title="Eimac">01:38</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&diff=0&oldid=155431" tabindex="3">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Eimac&curid=6817&diff=155431&oldid=155368" title="Eimac">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="19,124 bytes after change">(+348)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:K3hz" title="User:K3hz" class="mw-userlink">K3hz</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:K3hz" title="User talk:K3hz">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/K3hz" title="Special:Contributions/K3hz">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/Eimac#Vacuum_Tube_Manufacturing" title="Eimac">→</a>‎<span dir="auto"><span class="autocomment">Vacuum Tube Manufacturing: </span> updated nuclear battery comments</span>)</span> <span class="mw-tag-markers">(<a href="/web/20170704214303/http://ethw.org/Special:Tags" title="Special:Tags">Tag</a>: <span class="mw-tag-marker mw-tag-marker-visualeditor"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=ETHW:VisualEditor&action=edit&redlink=1" class="new" title="ETHW:VisualEditor (page does not exist)">Visual edit</a></span>)</span> </td> </tr> </table> </div><h4>1 July 2017</h4> <div><table class="mw-changeslist-log-upload mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     13:03 </td><td>(<a href="/web/20170704214303/http://ethw.org/Special:Log/upload" title="Special:Log/upload">Upload log</a>) <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/w/index.php?title=User:M.j.bastiaans&action=edit&redlink=1" class="new mw-userlink" title="User:M.j.bastiaans (page does not exist)">M.j.bastiaans</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/w/index.php?title=User_talk:M.j.bastiaans&action=edit&redlink=1" class="new" title="User talk:M.j.bastiaans (page does not exist)">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/M.j.bastiaans" title="Special:Contributions/M.j.bastiaans">contribs</a>)</span> uploaded a new version of <a href="/web/20170704214303/http://ethw.org/File:R8_history.pdf" title="File:R8 history.pdf">File:R8 history.pdf</a> ‎</td></tr></table> </div><h4>30 June 2017</h4> <div><table class="mw-changeslist-ns102-Milestones_selfies mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     12:55 </td><td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/Milestones:Milestones_selfies" title="Milestones:Milestones selfies" class="mw-changeslist-title">Milestones:Milestones selfies</a></span>‎ (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Milestones_selfies&curid=46491&diff=155429&oldid=155412" tabindex="5">diff</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Milestones_selfies&curid=46491&action=history" title="Milestones:Milestones selfies">hist</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="2,465 bytes after change">(+167)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Administrator1" title="User:Administrator1" class="mw-userlink">Administrator1</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Administrator1" title="User talk:Administrator1">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator1" title="Special:Contributions/Administrator1">contribs</a>)</span></td></tr></table> <table class="mw-changeslist-log-upload mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     12:54 </td><td>(<a href="/web/20170704214303/http://ethw.org/Special:Log/upload" title="Special:Log/upload">Upload log</a>) <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Administrator1" title="User:Administrator1" class="mw-userlink">Administrator1</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Administrator1" title="User talk:Administrator1">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator1" title="Special:Contributions/Administrator1">contribs</a>)</span> uploaded <a href="/web/20170704214303/http://ethw.org/File:Berg-InventionOfHolography.jpg" title="File:Berg-InventionOfHolography.jpg">File:Berg-InventionOfHolography.jpg</a> ‎</td></tr></table> </div><h4>28 June 2017</h4> <div><table class="mw-changeslist-ns110-The_History_of_Zinc_Mining_in_Friedensville_Pennsylvania mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span> <abbr class="minoredit" title="This is a minor edit">m</abbr>   02:26 </td><td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania" title="Archives:The History of Zinc Mining in Friedensville, Pennsylvania" class="mw-changeslist-title">Archives:The History of Zinc Mining in Friedensville, Pennsylvania</a></span>‎ (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania&curid=48482&diff=155427&oldid=155416" tabindex="7">diff</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania&curid=48482&action=history" title="Archives:The History of Zinc Mining in Friedensville, Pennsylvania">hist</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="1,315 bytes after change">(+164)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:TGriff" title="User:TGriff" class="mw-userlink">TGriff</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:TGriff" title="User talk:TGriff">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/TGriff" title="Special:Contributions/TGriff">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania#Abstract" title="Archives:The History of Zinc Mining in Friedensville, Pennsylvania">→</a>‎<span dir="auto"><span class="autocomment">Abstract</span></span>)</span></td></tr></table> <table class="mw-changeslist-log-upload mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     02:24 </td><td>(<a href="/web/20170704214303/http://ethw.org/Special:Log/upload" title="Special:Log/upload">Upload log</a>) <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:TGriff" title="User:TGriff" class="mw-userlink">TGriff</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:TGriff" title="User talk:TGriff">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/TGriff" title="Special:Contributions/TGriff">contribs</a>)</span> uploaded <a href="/web/20170704214303/http://ethw.org/File:Uberroth.jpg" title="File:Uberroth.jpg">File:Uberroth.jpg</a> ‎</td></tr></table> </div><h4>27 June 2017</h4> <div><table class="mw-collapsible mw-collapsed mw-enhanced-rc mw-changeslist-ns100-Surfing_the_Waves_of_Technological_Change_Part_Two mw-changeslist-line-not-watched "> <tr> <td> <span class="mw-collapsible-toggle mw-collapsible-arrow mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span> </td> <td class="mw-enhanced-rc">     20:27 </td> <td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two" title="First-Hand:Surfing the Waves of Technological Change. Part Two" class="mw-changeslist-title">First-Hand:Surfing the Waves of Technological Change. Part Two</a></span>‎‎ (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=155425&oldid=155406" title="First-Hand:Surfing the Waves of Technological Change. Part Two">4 changes</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&action=history" title="First-Hand:Surfing the Waves of Technological Change. Part Two">history</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="61,742 bytes after change">(+101)</span>‎ <span class="mw-changeslist-separator">. .</span> <span class="changedby">[<a href="/web/20170704214303/http://ethw.org/User:Lucasmsp" title="User:Lucasmsp" class="mw-userlink">Lucasmsp</a>‎ (4×)]</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&oldid=155425" title="First-Hand:Surfing the Waves of Technological Change. Part Two">20:27</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=0&oldid=155425" tabindex="9">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=155425&oldid=155424" title="First-Hand:Surfing the Waves of Technological Change. Part Two">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="61,742 bytes after change">(+8)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Lucasmsp" title="User:Lucasmsp" class="mw-userlink">Lucasmsp</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Lucasmsp" title="User talk:Lucasmsp">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Lucasmsp" title="Special:Contributions/Lucasmsp">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two#Windsurfing_and_GPS_Systems" title="First-Hand:Surfing the Waves of Technological Change. Part Two">→</a>‎<span dir="auto"><span class="autocomment">Windsurfing and GPS Systems</span></span>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&oldid=155424" title="First-Hand:Surfing the Waves of Technological Change. Part Two">20:20</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=0&oldid=155424" tabindex="10">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=155424&oldid=155423" title="First-Hand:Surfing the Waves of Technological Change. Part Two">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-null" title="61,734 bytes after change">(0)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Lucasmsp" title="User:Lucasmsp" class="mw-userlink">Lucasmsp</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Lucasmsp" title="User talk:Lucasmsp">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Lucasmsp" title="Special:Contributions/Lucasmsp">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two#Windsurfing" title="First-Hand:Surfing the Waves of Technological Change. Part Two">→</a>‎<span dir="auto"><span class="autocomment">Windsurfing</span></span>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&oldid=155423" title="First-Hand:Surfing the Waves of Technological Change. Part Two">20:13</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=0&oldid=155423" tabindex="11">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=155423&oldid=155422" title="First-Hand:Surfing the Waves of Technological Change. Part Two">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="61,734 bytes after change">(+57)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Lucasmsp" title="User:Lucasmsp" class="mw-userlink">Lucasmsp</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Lucasmsp" title="User talk:Lucasmsp">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Lucasmsp" title="Special:Contributions/Lucasmsp">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two#Technical_Evolution_of_Small_Recreational_Sailboats." title="First-Hand:Surfing the Waves of Technological Change. Part Two">→</a>‎<span dir="auto"><span class="autocomment">Technical Evolution of Small Recreational Sailboats.</span></span>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&oldid=155422" title="First-Hand:Surfing the Waves of Technological Change. Part Two">20:07</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=0&oldid=155422" tabindex="12">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two&curid=47401&diff=155422&oldid=155406" title="First-Hand:Surfing the Waves of Technological Change. Part Two">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-pos" title="61,677 bytes after change">(+36)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Lucasmsp" title="User:Lucasmsp" class="mw-userlink">Lucasmsp</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Lucasmsp" title="User talk:Lucasmsp">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Lucasmsp" title="Special:Contributions/Lucasmsp">contribs</a>)</span> <span class="comment">(<a href="/web/20170704214303/http://ethw.org/First-Hand:Surfing_the_Waves_of_Technological_Change._Part_Two#Technical_Evolution_of_Small_Recreational_Sailboats." title="First-Hand:Surfing the Waves of Technological Change. Part Two">→</a>‎<span dir="auto"><span class="autocomment">Technical Evolution of Small Recreational Sailboats.</span></span>)</span> </td> </tr> </table> <table class="mw-collapsible mw-collapsed mw-enhanced-rc mw-changeslist-ns102-Nobeyama_45-m_Telescope_1982 mw-changeslist-line-not-watched "> <tr> <td> <span class="mw-collapsible-toggle mw-collapsible-arrow mw-enhancedchanges-arrow mw-enhancedchanges-arrow-space"></span> </td> <td class="mw-enhanced-rc"><abbr class="newpage" title="This edit created a new page">N</abbr>    15:46 </td> <td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/Milestones:Nobeyama_45-m_Telescope,_1982" title="Milestones:Nobeyama 45-m Telescope, 1982" class="mw-changeslist-title">Milestones:Nobeyama 45-m Telescope, 1982</a></span>‎‎ (5 changes | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&action=history" title="Milestones:Nobeyama 45-m Telescope, 1982">history</a>) <span class="mw-changeslist-separator">. .</span> <strong dir="ltr" class="mw-plusminus-pos" title="8,346 bytes after change">(+8,346)</strong>‎ <span class="mw-changeslist-separator">. .</span> <span class="changedby">[<a href="/web/20170704214303/http://ethw.org/User:Administrator1" title="User:Administrator1" class="mw-userlink">Administrator1</a>‎ (2×); <a href="/web/20170704214303/http://ethw.org/w/index.php?title=User:Administrator4&action=edit&redlink=1" class="new mw-userlink" title="User:Administrator4 (page does not exist)">Administrator4</a>‎ (3×)]</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&oldid=155421" title="Milestones:Nobeyama 45-m Telescope, 1982">15:46</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=0&oldid=155421" tabindex="13">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=155421&oldid=155420" title="Milestones:Nobeyama 45-m Telescope, 1982">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-neg" title="8,346 bytes after change">(-28)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Administrator1" title="User:Administrator1" class="mw-userlink">Administrator1</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Administrator1" title="User talk:Administrator1">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator1" title="Special:Contributions/Administrator1">contribs</a>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&oldid=155420" title="Milestones:Nobeyama 45-m Telescope, 1982">15:46</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=0&oldid=155420" tabindex="14">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=155420&oldid=155419" title="Milestones:Nobeyama 45-m Telescope, 1982">prev</a>) <span class="mw-changeslist-separator">. .</span> <strong dir="ltr" class="mw-plusminus-pos" title="8,374 bytes after change">(+1,072)</strong>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:Administrator1" title="User:Administrator1" class="mw-userlink">Administrator1</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:Administrator1" title="User talk:Administrator1">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator1" title="Special:Contributions/Administrator1">contribs</a>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&oldid=155419" title="Milestones:Nobeyama 45-m Telescope, 1982">15:41</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=0&oldid=155419" tabindex="15">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=155419&oldid=155418" title="Milestones:Nobeyama 45-m Telescope, 1982">prev</a>) <span class="mw-changeslist-separator">. .</span> <span dir="ltr" class="mw-plusminus-neg" title="7,302 bytes after change">(-24)</span>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/w/index.php?title=User:Administrator4&action=edit&redlink=1" class="new mw-userlink" title="User:Administrator4 (page does not exist)">Administrator4</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/w/index.php?title=User_talk:Administrator4&action=edit&redlink=1" class="new" title="User talk:Administrator4 (page does not exist)">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator4" title="Special:Contributions/Administrator4">contribs</a>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc">     </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&oldid=155418" title="Milestones:Nobeyama 45-m Telescope, 1982">15:38</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=0&oldid=155418" tabindex="16">cur</a> | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=155418&oldid=155417" title="Milestones:Nobeyama 45-m Telescope, 1982">prev</a>) <span class="mw-changeslist-separator">. .</span> <strong dir="ltr" class="mw-plusminus-pos" title="7,326 bytes after change">(+786)</strong>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/w/index.php?title=User:Administrator4&action=edit&redlink=1" class="new mw-userlink" title="User:Administrator4 (page does not exist)">Administrator4</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/w/index.php?title=User_talk:Administrator4&action=edit&redlink=1" class="new" title="User talk:Administrator4 (page does not exist)">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator4" title="Special:Contributions/Administrator4">contribs</a>)</span> </td> </tr> <tr class=""> <td></td> <td class="mw-enhanced-rc"><abbr class="newpage" title="This edit created a new page">N</abbr>    </td> <td class="mw-enhanced-rc-nested"> <span class="mw-enhanced-rc-time"><a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&oldid=155417" title="Milestones:Nobeyama 45-m Telescope, 1982">15:33</a></span> (<a href="/web/20170704214303/http://ethw.org/w/index.php?title=Milestones:Nobeyama_45-m_Telescope,_1982&curid=48483&diff=0&oldid=155417" tabindex="17">cur</a> | prev) <span class="mw-changeslist-separator">. .</span> <strong dir="ltr" class="mw-plusminus-pos" title="6,540 bytes after change">(+6,540)</strong>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/w/index.php?title=User:Administrator4&action=edit&redlink=1" class="new mw-userlink" title="User:Administrator4 (page does not exist)">Administrator4</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/w/index.php?title=User_talk:Administrator4&action=edit&redlink=1" class="new" title="User talk:Administrator4 (page does not exist)">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/Administrator4" title="Special:Contributions/Administrator4">contribs</a>)</span> <span class="comment">(Created page with "{{MilestoneLayout |pagename=Milestones:Nobeyama 45-m Telescope |title=Nobeyama 45-m Telescope, 1982 |citation=In 1982, the Tokyo Astronomical Observatory in collaboration with...")</span> </td> </tr> </table> <table class="mw-changeslist-ns110-The_History_of_Zinc_Mining_in_Friedensville_Pennsylvania mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span><abbr class="newpage" title="This edit created a new page">N</abbr>    02:02 </td><td> <span class="mw-title"><a href="/web/20170704214303/http://ethw.org/Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania" title="Archives:The History of Zinc Mining in Friedensville, Pennsylvania" class="mw-changeslist-title">Archives:The History of Zinc Mining in Friedensville, Pennsylvania</a></span>‎ (diff | <a href="/web/20170704214303/http://ethw.org/w/index.php?title=Archives:The_History_of_Zinc_Mining_in_Friedensville,_Pennsylvania&curid=48482&action=history" title="Archives:The History of Zinc Mining in Friedensville, Pennsylvania">hist</a>) <span class="mw-changeslist-separator">. .</span> <strong dir="ltr" class="mw-plusminus-pos" title="1,151 bytes after change">(+1,151)</strong>‎ <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:TGriff" title="User:TGriff" class="mw-userlink">TGriff</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:TGriff" title="User talk:TGriff">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/TGriff" title="Special:Contributions/TGriff">contribs</a>)</span> <span class="comment">(Created page with "== Abstract == In the late 1840s and early 1850s, the New Jersey Zinc Company conducted experiments at its Newark Zinc Works on treating zinc ore from the Franklin and Sterli...")</span></td></tr></table> <table class="mw-changeslist-log-upload mw-changeslist-line-not-watched mw-enhanced-rc"><tr><td class="mw-enhanced-rc"><span class="mw-enhancedchanges-arrow-space"></span>     01:51 </td><td>(<a href="/web/20170704214303/http://ethw.org/Special:Log/upload" title="Special:Log/upload">Upload log</a>) <span class="mw-changeslist-separator">. .</span> <a href="/web/20170704214303/http://ethw.org/User:TGriff" title="User:TGriff" class="mw-userlink">TGriff</a> <span class="mw-usertoollinks">(<a href="/web/20170704214303/http://ethw.org/User_talk:TGriff" title="User talk:TGriff">talk</a> | <a href="/web/20170704214303/http://ethw.org/Special:Contributions/TGriff" title="Special:Contributions/TGriff">contribs</a>)</span> uploaded <a href="/web/20170704214303/http://ethw.org/File:Kaas_Friedensville_Mines_MHJ_2016_by_L_M_Kaas.pdf" title="File:Kaas Friedensville Mines MHJ 2016 by L M Kaas.pdf">File:Kaas Friedensville Mines MHJ 2016 by L M Kaas.pdf</a> ‎</td></tr></table> </div></div></div><div class="printfooter"> Retrieved from "<a dir="ltr" href="https://web.archive.org/web/20170704214303/http://ethw.org/Special:RecentChanges">http://ethw.org/Special:RecentChanges</a>"</div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div>  <div class="visualClear"></div> 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