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Day in Engineering History Archive - August 7
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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. All will eventually be either verified or removed.
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.
Today is National Lighthouse Day. 1802: Germain Hess, early thermochemistry researcher who developed Hess's law of constant heat summation, was born. 1886: Alan Hazeltine, inventor of the "neutrodyne" receiver that eliminated squeaks and howls of early radio receivers, was born. 1888: Theophilus Van Kannel received a patent for the revolving door. 1909: The first Lincoln penny was issued. 1919: Captain Ernest Hoy became the first pilot to fly over the Canadian Rockies. 1927: The Peace Bridge between the U.S. & Canada was dedicated. 1928: The U.S. Treasury Department issued a new bill that was one third smaller than the previous bills. 1942: U.S. Marines launched America's first offensive in World War II, landing on the Pacific island of Guadalcanal. 1959: Explorer 6 transmitted the first TV photo of Earth from space. 1994: The first telephone link was made between Israel and Jordan. 1996: More than six million America Online (AOL) customers worldwide were left stranded when the system crashed for almost 19 hours. 1998: U.S. embassies in Nairobi, Kenya, and Tanzania were bombed killing 224 people - Osama bin Laden was later indicted for the attacks.
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