December 21
1807:
Joseph Fourier's
memoir "On the Propagation of Heat in Solid Bodies," was read to the Paris Institute,
and contained what we now call Fourier series, which he had worked upon since around
1804. 1878: Jan
Łukasiewicz, who invented Reverse Polish Notation (RPN), was born. 1898: Scientists
Pierre and Marie
Curie discovered the radioactive element
radium. 1929:
My father,
"Arthur Blattenberger, was born. 1937: Founding father of the ARPANET
Lawrence Roberts was born. 1968:
Apollo 8, the first
manned voyage to the moon, was launched. 1988: A Libyan terrorist's bomb exploded aboard
Pan Am Flight
103, a Boeing 747, over Lockerbie, Scotland, killing 270 people. 1990: American aeronautical
engineer Kelly Johnson,
who founded the Lockheed Skunk Works, died. 2012: The
Long Count of the Mayan
calendar will cycle.
| 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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