discoverer of the wave theory of light and of Saturn's moon Titan, was born. 1807: German
Richter, who discovered law of equivalent proportions, died. 1869: The airbrake was
patented by George Westinghouse. 1894: The first public showing of Thomas Edison's kinetoscope
took place. 1898: Harold Black, who developed the negative-feedback principle for amplifier
design, was born. 1912: Distress call of the Titanic picked up at Marconi station at
Cape Race. 1918: U.S. First Aero Squadron engaged in America's first aerial dogfight
with enemy aircraft over Toul, France. 1956: Ampex Corporation of Redwood City, CA, demonstrated
the first commercial magnetic tape recorder for sound and picture. 1961: Manmade element
Lawrencium (Lw, #103), was first produced. 2000: The Dow industrials plummeted 617 points
and the Nasdaq composite index fell 355 points.
| Feb | Mar |
Apr | May |
Jun | Jul |
Aug | Sep |
Oct | Nov |
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.