of Balmer's formula for computing wavelengths [λ=hm²/(m²-n²)], was born. 1875:
Harriet Quimby, the first female pilot to fly across the English
Channel, was born. 1921: The first successful marine radio navigation beacons began regular
operation in the U.S. 1925: Astronaut
Scott Carpenter, the second U.S. citizen to orbit the earth, was born. 1926:
Henry Ford announced an 8 hour, 5 day work week. 1931: The
State Building was dedicated remotely by President Hoover from Washington, D.C. 1947:
Howard Hughes tested the first
radar aboard a TWA Constellation. 1958:
Van Allen reported that two radiation belts encircled Earth. 1960: The Soviet Union
shot down an American U-2 reconnaissance plane near Sverdlovsk and captured its pilot,
Powers. 1964: The first BASIC program, invented by John Kemeny and Thomas Kurtz at Dartmouth
University, was run on a computer at about 4:00 a.m. 1999: The ''Liberty
Bell 7,'' the Mercury space capsule flown by Gus Grissom, was found in the Atlantic
300 miles southeast of Cape Canaveral, 38 years after it sank.
| 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.