Template:Selected anniversaries/September 19: Difference between revisions
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||1968 – Chester Carlson, American physicist and lawyer (b. 1906) | ||1968 – Chester Carlson, American physicist and lawyer (b. 1906) | ||
||1976 – Two Imperial Iranian Air Force F-4 Phantom II jets fly out to investigate an unidentified flying object when both independently lose instrumentation and communications as they approach, only to have them restored upon withdrawal. | ||1976 – Two Imperial Iranian Air Force F-4 Phantom II jets fly out to investigate an unidentified flying object when both independently lose instrumentation and communications as they approach, only to have them restored upon withdrawal. | ||
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||1995 – The Washington Post and The New York Times publish the Unabomber's manifesto. | ||1995 – The Washington Post and The New York Times publish the Unabomber's manifesto. | ||
John_Fleming_in_Fleming_tube.jpg|link=John Ambrose Fleming (nonfiction)|Miniaturized version of [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] delivers lecture from within Fleming tube. | |John_Fleming_in_Fleming_tube.jpg|link=John Ambrose Fleming (nonfiction)|Miniaturized version of [[John Ambrose Fleming (nonfiction)|John Ambrose Fleming]] delivers lecture from within Fleming tube. | ||
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Revision as of 07:05, 9 July 2017
1921: Chemist and physicist James Dewar develops liquid gas condensor for use in fighting crimes against mathematical constants.