Hans Christian Oersted
, who discovered electromagnetism and
after whom the unit of magnetic field (H) is named, died. 1856:
, inventor of abrasive carborundum, the 2nd-hardest
substance after diamond, was born. 1893:
announced at the meeting of the Royal Society that
he had succeeded in freezing air into a clear, transparent solid.
1932: Ford built its first
vehicle. 1939: Russian cosmonaut
, the first human in space, was born. 1942:
, the German engineer and industrialist who was
invented the spark plug and magneto, died. 1959: The first known
radar contact was made with Venus. 1961: Sputnik 9 carried
the dog into orbit. 1964: The first
rolled off of the Ford assembly line.
| 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.