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Day in Engineering History Archive - May 12 | ||||||
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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.
Please submit significant
historical events and dates for inclusion in these lists. I will be glad to include your name and
birthday. Please do not submit your death date ;-)
A couple 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.
May 12  1909: Edwin Land, inventor of the Polaroid Land Camera, was born. 1926: The airship Norge became the first vessel to fly over the North Pole. 1930: The first planetarium in the U.S. opened to the public, the Adler Planetarium in Chicago, IL. 1936: The Dvorak typewriter keyboard was patented. 1940: The Nazi conquest of France began with the crossing Meuse River. 1942: A Nazi U-boat sunk an American cargo ship at mouth of Mississippi River. 1958: The U.S. & Canada formed the North American Air Defense Command (NORAD). 1978: The National Oceanic and Atmospheric Administration announced that they would no longer exclusively name hurricanes after women. 1980: The first nonstop crossing of U.S. via balloon began. 1994: Roy Plunkett, inventor of Teflon, died. | ||||||
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