December 131545: Council of Trent began. 1816: Werner von Siemens, German electrical engineer who helped develop telegraph industry (and for whom the unit of conductance is named after), was born. 1903: Wright Brothers made their first flight at Kittyhawk, NC. 1920: first accurate measurement of the size of a fixed star was made on Betelgeuse and was found to be 260 million miles in diameter - 150 times larger than the previous measurement. 1934: Thomas Watson, assistant to Alexander Graham Bell, died. 1939: Perkin Elmer incorporated. 1940: French biophysicist Jacques-Arsène d' Arsonval, who invented the reflecting moving-coil galvanometers used to measure weak electric currents, died. 1962: The first U.S. communications earth satellite to transmit telephone, television, teleprinter & facsimile signals, Relay I, was launched. 1990: Tim Berners-Lee launched the World Wide Web. 1994: First meeting of the World Wide Web (W3) Consortium took place in Cambridge at the Massachusetts Institute of Technology.
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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.