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Day in Engineering History Archive - November 30

Day in Engineering History November 30 Archive - RF CafeNovember 30

1603: William Gilbert, the "father of electrical studies," coiner of the names of electric attraction, electric force, and magnetic poles, died. 1756: German physicist Ernst Chladni, known as "the father of acoustics," was born. 1782: The U.S. and Britain signed preliminary peace articles in Paris, ending the Revolutionary War. 1874: Sir Winston Churchill was born. 1835: Samuel Clemens (aka Mark Twain) was born, the same year as an appearance of Halley's Comet and, amazingly, the comet's next appearance came during April 1910, the year of Clemens' death (throughout his life, Clemens said that he would "go out with the comet"). 1850: Germain Hess, early thermochemistry researcher who developed Hess's law of constant heat summation, died. 1858: John Mason patented the screw neck bottle (Mason Jar). 1882: Hans Geiger, inventor of the Geiger counter alpha particle detector, was born. 1954: In Sylacauga, AL, Ann Hodges, was bruised on the arm and hip by a meteorite (Hodges Meteorite) that fell through the roof of her house into her living room. 1983: Radio Shack announced Tandy Model 2000 computer (80186 chip). 1999: British Aerospace and Marconi Electronic Systems merged to form BAE Systems.

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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.
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