Editing Timeline of historic inventions (section)

====1920s====
* '''1925:''' The [[Fischer–Tropsch process]] is developed by [[Franz Joseph Emil Fischer|Franz Fischer]] and [[Hans Tropsch]] at the [[Max Planck Institute for Coal Research|Kaiser-Wilhelm-Institut für Kohlenforschung]].
* '''1926:''' The [[Yagi-Uda Antenna]] or simply Yagi Antenna is invented by [[Shintaro Uda]] of [[Tohoku Imperial University]], assisted by his colleague [[Hidetsugu Yagi]]. The Yagi Antenna was widely used during [[World War II]]. After the war they saw extensive development as home [[television antennas]].
* '''1926:''' [[Robert H. Goddard]] launches the first [[Bipropellant rocket|liquid fueled rocket]].
* '''1926:''' [[Harry Ferguson]], patents the [[Three-point hitch]] equipment linkage system for tractors.<ref>{{Cite web |title=TractorData.com - Three-Point Hitch |url=http://www.tractordata.com/articles/technical/threepoint.html |access-date=28 February 2022 |website=www.tractordata.com}}</ref>
* '''1926:''' [[John Logie Baird]] demonstrates the world's first live working [[Mechanical television|television]] system.<ref>[https://www.bairdtelevision.com/the-televisor-successful-test-of-new-apparatus-1926.html "The "Televisor" Successful Test of New Apparatus"], The Times (London), Thursday 28 January 1926, p. 9 column C.</ref><ref name="Telegraph">{{cite news |date=26 January 2016 |title=Who invented the television? How people reacted to John Logie Baird's creation 90 years ago |newspaper=The Telegraph |url=https://www.telegraph.co.uk/technology/google/google-doodle/12121474/Who-invented-the-television-John-Logie-Baird-created-the-TV-in-1926.html |url-status=dead |archive-url=https://web.archive.org/web/20160126005621/http://www.telegraph.co.uk/technology/google/google-doodle/12121474/Who-invented-the-television-John-Logie-Baird-created-the-TV-in-1926.html |archive-date=26 January 2016}}</ref><ref>{{cite news |date=26 January 2016 |title=Who invented the mechanical television? (John Logie Baird) |publisher=Google. |url=https://youtube.com/watch?v=43A_5kGJ2hw}}</ref>
* '''1927:''' The [[quartz clock]] is invented by Warren Marrison and J.W. Horton at [[Bell Telephone Laboratories]].<ref>{{cite journal |last=Marrison |first=Warren |title=The Evolution of the Quartz Crystal Clock |year=1948 |journal=Bell System Technical Journal |publisher=AT&T |volume=27 |issue=3 |pages=510–588 |url=http://www.ieee-uffc.org/freqcontrol/marrison/Marrison.html |doi=10.1002/j.1538-7305.1948.tb01343.x |url-status=dead |archive-url=https://web.archive.org/web/20070513175811/http://www.ieee-uffc.org/freqcontrol/marrison/Marrison.html |archive-date=13 May 2007}}</ref>
* '''1928:''' [[Penicillin]] is first observed to exude antibiotic substances by Nobel laureate [[Alexander Fleming]]. Development of medicinal penicillin is attributed to a team of medics and scientists including [[Howard Walter Florey]], [[Ernst Chain]] and [[Norman Heatley]].
* '''1928:''' [[Frank Whittle]] formally submitted his ideas for a turbo-jet engine. In October 1929, he developed his ideas further.<ref>{{cite web|url=https://www.bbc.co.uk/history/historic_figures/whittle_frank.shtml |title=History – Frank Whittle (1907–1996) |publisher=BBC |access-date=26 March 2010}}</ref> On 16 January 1930, Whittle submitted his first patent (granted in 1932).<ref>{{Cite web|url=https://worldwide.espacenet.com/publicationDetails/originalDocument?CC=GB&NR=347206&KC=&FT=E|title=Espacenet - Original document|website=worldwide.espacenet.com}}</ref>
* '''1928:''' [[Philo Farnsworth]] demonstrates the first practical [[electronic television]] to the press.
* '''1929:''' The [[ball screw]] is invented by Rudolph G. Boehm.