Editing 1769 in science (section)

==Technology==
* April 29 – [[James Watt]] is granted a [[Kingdom of Great Britain|British]] [[patent]] for "A method of lessening the consumption of steam in [[Watt steam engine|steam engine]]s" – the separate condenser,<ref>Patent 913; specification accepted January 5.</ref> a key improvement (first devised by Watt in 1765) which stimulates the [[Industrial Revolution]].<ref name=CBH>{{cite book|last=Palmer|first=Alan|last2=Palmer|first2=Veronica|year=1992|title=The Chronology of British History|publisher=Century Ltd|location=London|pages=224–225|isbn=0-7126-5616-2}}</ref> In September he completes a full-size experimental engine at [[Kinneil House]] in Scotland.
* July 3 – [[Richard Arkwright]] is granted a British patent for a water-powered [[spinning frame]] able to spin thread mechanically.<ref>{{cite book|last=Williams|first=Hywel|title=Cassell's Chronology of World History|url=https://archive.org/details/cassellschronolo0000will/page/325|url-access=registration|location=London|publisher=Weidenfeld & Nicolson|year=2005|isbn=0-304-35730-8|page=[https://archive.org/details/cassellschronolo0000will/page/325 325]}}</ref>
* October 23 – [[Nicolas-Joseph Cugnot]] demonstrates a steam-powered artillery tractor (or '[[automobile]]') in [[France]] (''see drawing'').<ref>{{cite web|title=A Concise History of the Traction Engine|url=http://steam-up.co.uk/traction_engine_history.htm|work=Steam Up|accessdate=2014-10-15}}</ref>
* [[Wolfgang von Kempelen]] begins development of [[Wolfgang von Kempelen's speaking machine|his speaking machine]].