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  February 5
1840: Scottish inventor of the pneumatic tire,
John Dunlop,
was born. 1840: Prolific inventor
Sir Hiram Stevens
Maxim, who developed the Maxim (machine) gun and also was the father of ARRL founder
Hiram Percy Maxim, was born.
1850: The first adding machine with keys was patented by Du Bois Parmelee. 1897:
The Indiana House of Representatives unanimously passed a measure redefining the
area of a circle and the value of π -- the "Indiana Pi Bill"
died in the state Senate (because it was obvious in error). 1901: Edwin Prescott
received a patent for his 20 foot diameter
loop-the-loop centrifugal railway (roller coaster) at Coney Island.
1915: Robert
Hofstadter, Nobel Prize for Physics recipient for measuring the sizes of the
neutron and proton in the nuclei of atoms, was born. 1971: Alan Shepard and Edward
Mitchell
walked on the moon for four hours during the third manned moon
expedition, Apollo 14. 1974: U.S. space probe
Mariner 10 returned the first close-up photos of Venus' cloud
structure. 1978: One of the worst
blizzards in recorded history hit the U.S. northeast.
| 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.
| 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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