Day in Engineering History Archive - June 27

June 27

1806: Augustus De Morgan, who formulated De Morgan's laws for Boolean algebra, was born. 1901: Merle Tuve who first used pulsed radio waves to explore the ionosphere, was born. 1941: The BBC began using the first four notes of Beethoven's Fifth Symphony as a morale-boosting motif (in Morse Code, "dit-dit-dit dahhh" stands for the letter "V" as in "Victory"). 1950: President Truman ordered the Air Force and Navy into the Korean conflict. 1954: The world's first atomic power station began producing electricity in Obninsk, USSR. 1962: Ross Perot began Electronic Data Systems (EDS). 1976: Palestinian extremists hijacked an Air France plane in Greece with 246 passengers and 12 crew onboard. 1978: The first pen with truly erasable ink, the Gillette Eraser Mate, was invented. 1983: Maxie Anderson, who co-piloted the first transatlantic balloon flight on the Double Eagle II, died.

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Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified. Many years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.