|
  February 4
1863: A patent for four-wheeled
roller skates was awarded to James Plimpton of New York. 1890: Thomas Edison was
issued a patent for a "Quadruplex
Telegraph." 1902: Aviation pioneer
Charles
Augustus Lindbergh was born. 1906:
Clyde Tombaugh,
who discovered the non-planet Pluto, was born. 1928:
Hendrik Lorentz, after whom the Lorentz force in electromagnetism
is named, died. 1936: Radium E. became the first radioactive substance to be produced
synthetically. 1941: Roy Plunkett received a patent for "tetrafluoro-ethylene polymers"
(TEFLON). 1974:
Satyendra
Bose, of the
Bose-Einstein
condensates fame, died. 1998:
Bill Gates got a pie in his face in Brussels, Belgium. 1999: Ford
completed the purchase of
Volvo Car
and incorporated Volvo it as part of the Premier Auto Group.
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.
|
