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 June 23
1891: Wilhelm Weber, after whom the unit of magnetic flux is named,
died. 1912: Alan
Turing, mathematician and code-breaking pioneer at Bletchley Park, was born.
1931: Aviators
Wiley Post and Harold Gatty took off from New York on the first
flight around the world in a single-engine plane. 1938: The
Civil Aeronautics Authority (CAA, later the FAA) was established.
1960: The first solar powered, 2-way radio, coast-to-coast conversation was made
by the U.S. Army Signal Corps, using 20-foot square panels consisting of 7,800 individual
solar cells. 1961: An X-15 airplane became the first to exceed Mach 5, at Edwards AFB,
CA. 1964: Jack Kilby
issued patent for first integrated circuit. 1982: A record low temperature of -117 ºF was recorded at the South Pole.
1995: Dr. Jonas
Salk, inventor of the polio vaccine, died. 1998: President Clinton called for
U.N. sanctions against Iraq for
WMDs reportedly found. 2008:
Carl Eilers, the "Father of FM and TV Stereo," died.
Note: These
historical tidbits (see daily
list) 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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