Editing 1816 in science (section)

==Technology==
* January 9 – Sir [[Humphry Davy]]'s [[Davy lamp]] is first tested underground as a [[coal mining]] [[safety lamp]] at [[Hebburn]] Colliery in north east England.<ref>{{cite book|last=Thompson|first=Roy|title=Thunder underground: Northumberland mining disasters, 1815-1865|url=https://books.google.com/books?id=u6sgAQAAIAAJ|accessdate=2013-01-08|year=2004|publisher=Landmark|location=Ashbourne|isbn=9781843061694|page=121}}</ref>
* The [[Spider Bridge at Falls of Schuylkill]], a temporary iron-wire footbridge erected across the [[Schuylkill River]], north of [[Philadelphia, Pennsylvania]], is the first wire-cable [[suspension bridge]] in history.<ref>{{cite journal|last=Peterson|first=Charles E.|title=The Spider Bridge: a curious work at the Falls of Schuylkill, 1816|journal=Canal History and Technology Proceedings|volume=5|date=22 March 1986|pages=243–59}}</ref>
* [[Johann Nepomuk Maelzel]] begins production of the [[metronome]] with a scale.<ref>{{cite journal|first=J. de Vos|last=Willems|url=https://books.google.com/books?id=HugqAAAAYAAJ&pg=PA17|title=The Metronome|journal=[[The Harmonicon]]|volume=8|year=1830|accessdate=2011-05-18}}</ref>
* Rev. [[Robert Stirling]] obtains a [[patent]] in the [[United Kingdom]] for the [[Stirling engine|Stirling]] [[hot air engine]].
* English inventor [[Francis Ronalds]] demonstrates the practicability of the [[electric telegraph]] but it is rejected as "wholly unnecessary" at this time.<ref>{{Cite book|title=Descriptions of an Electrical Telegraph and of some other Electrical Apparatus|url=https://archive.org/details/descriptionsane00ronagoog|last=Ronalds|first=Francis|publisher=Hunter|year=1823|location=London}}</ref><ref>{{multiref|Ronalds, Beverley Frances. ''Sir Francis Ronalds: Father Of The Electric Telegraph''. World Scientific, 2016. p. 142. {{ISBN|1783269197}}.|{{Cite journal|last=Ronalds|first=B. F.|year=2016|title=Sir Francis Ronalds and the Electric Telegraph|journal=International Journal for the History of Engineering & Technology|volume=86|pages=42–55|doi=10.1080/17581206.2015.1119481|s2cid=113256632}}}}</ref><ref>{{Cite web|url=https://www.aps.org/publications/apsnews/201708/physicshistory.cfm|access-date=2020-08-03|work=This Month in Physics History|title=August 5, 1816: Sir Francis Ronalds' telegraph design rejected|publisher=American Physical Society}}</ref>
* ''approx. date'' – [[Simeon North]] in [[New England]] produces a practicable [[milling machine]] for working metal.<ref>{{cite book|authorlink=Diana Muir|first=Diana|last=Muir|title=[[Reflections in Bullough's Pond]]: Economy and Ecosystem in New England|location=Lebanon, New Hampshire|publisher=University Press of New England|isbn=978-0-87451-909-9}}</ref>