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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