1821: Hermann von Helmholtz, who experimented with physiology, optics, electrodynamics, mathematics, and meteorology, and inventor of the Helmholtz coil, was born. 1842: The U.S. Naval Observatory was authorized by an act of Congress. 1887: Thomas Edison received a patent for his kinetoscope (movie projector). 1903: A Packard automobile become the first car to cross the U.S. under its own power by completing a 52-day journey from San Francisco to New York. 1956: The KC-135 Stratotanker made its first flight. 1962: President Kennedy signed the Communications Satellite Act which gave a monopoly on international communications via satellite to a new corporation called Comsat. 1988: A 5-day power blackout in downtown Seattle began. 1994: Russia officially ended its military presence in the former East Germany.
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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.