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 June 19
 1623: Child prodigy and mathematical
genius Blaise
Pascal was born. 1851:
Silvanus
Thompson, authority on electricity, magnetism and acoustics, was born. 1900:
Michael Pupin was granted a patent for reducing signal attenuation
on a cable , enabling long distance telephony. 1910: The first airship passengers
flew aboard the zeppelin
LZ7
Deutschland. 1931: Installation was completed on the first commercial doors
operated by photoelectric cell. 1934: The U.S. Congress established the
Federal Communications Commission (FCC), which replaced the Federal
Radio Commission (FRC). 1953:
Julius and Ethel Rosenberg were executed at Sing Sing Prison in
Ossining, NY, having been convicted of conspiring to pass U.S. atomic secrets to
the Soviet Union. 1970: The
Patent
Cooperation Treaty was signed.1977: The
Trans-Alaska Pipeline
began carrying oil from the Arctic Ocean to Prince William Sound. 2007: NASA astronaut
Suni Williams set a new record for time in space by a female (>188
days). 2019: U.S. patent
#10,000,000
was awarded for Coherent Lidar Using Intra-Pixel Coherent Detection.
| Jan
| Feb | Mar |
Apr | May |
Jun | Jul |
Aug | Sep |
Oct | Nov |
Dec |
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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