Editing 1880 in science (section)

==Technology==
* January 27 – [[Thomas Edison]] is granted a United States [[patent]] for the [[incandescent light bulb]].<ref>{{US patent|0223898}}</ref>
* February 2
** The first electric [[streetlight]] is installed in [[Wabash, Indiana]] (city fully illuminated March 31).<ref>{{cite web|url=http://www.electricmuseum.com/exhibits/arclamps/brush.shtml|title=Brush Arc Lighting|archive-url=https://web.archive.org/web/20080724073937/http://www.electricmuseum.com/exhibits/arclamps/brush.shtml|archive-date=2008-07-24|url-status=dead}}</ref>
** The first successful shipment of frozen [[mutton]] from Australia arrives in London, aboard the SS ''Strathleven''.<ref>{{cite book|author-link=James Burke (science historian)|first=James|last=Burke|title=Connections|url=https://archive.org/details/connections00burk_351|url-access=limited|location=London|publisher=Macmillan|year=1978|isbn=0-333-24827-9|page=[https://archive.org/details/connections00burk_351/page/n247 242]}}</ref>
* February 19 – The [[photophone]], an optical speech transmission system, is invented by [[Alexander Graham Bell]] and [[Charles Sumner Tainter]] in Washington, D.C.
* May 2 – The newly-launched [[SS Columbia (1880)|SS ''Columbia'']] becomes the first transport vehicle to use Edison's [[incandescent light bulb]]s when she is lit up for the first time at the foot of [[Wall Street]] in New York City.
* May 13 – Edison performs the first test of his [[electric railway]] in [[Menlo Park, New Jersey]].
* June 1  – [[Tinius Olsen]] is awarded a U.S. patent for his "Little Giant" [[universal testing machine]].
* November 4 – The first [[cash register]] is patented by [[James Ritty|James]] and John Ritty of [[Dayton, Ohio]].
* [[Dugald Clerk]] builds the first successful [[two-stroke engine]].<ref>{{cite web|title=Forgotten Hero: The man who invented the two-stroke engine |first=David |last=Boothroyd |work=The VU |url=http://the-vu.com./forgotten_hero.htm |accessdate=2005-01-19 |archiveurl=https://web.archive.org/web/20041215125856/http://the-vu.com/forgotten_hero.htm |archivedate=2004-12-15 |url-status=dead }}</ref>
* [[Lima Locomotive Works|Lima Machine Works]] ships the first [[Shay locomotive]] to [[Ephraim Shay]]'s design to a logger in [[Grand Rapids, Michigan]].