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 November 15
 1630: German astronomer
Johannes Kepler,
who formulated the three major laws of planetary motion, died. 1806: Explorer Zebulon
Pike sighted the mountaintop in Colorado now known as "Pikes Peak."
1887: German scientist Carl Gassner was issued a patent for the first "galvanic
battery," or dry cell, which used zinc as its primary ingredient. 1904:
Patent #775,134 was granted to King Gillette for the safety razor. 1971:
Intel announced its first user-programmable microprocessor, the
4004, in a edition of Electronic News magazine. 1988: The Soviet
Union launched its first space shuttle,
Buran
("Snowstorm"), unmanned, on its first and only orbital flight. 2000: The
Southern Cross broadband cable went into service, connecting Australia,
New Zealand, Fiji, Hawaii and the U.S. west coast over a distance of 30,500 km.
| 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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