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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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