Day in Engineering History Archive - September 13

Day in Engineering History September 13 Archive - RF CafeSeptember 13

Please click here to visit RF Cafe.1845: Michael Faraday discovered that an electromagnetic field effects light polarization - the Faraday Effect. 1851: Walter Reed, after whom the Walter Reed Hospital is named, was born. 1857: Milton Snavely Hershey of chocolate fame was born. 1898: Hannibal Goodwin patented celluloid photographic film, which is used to make movies. 1899: Henry Bliss became the first automobile accident fatality after stepping off a trolley in New York City. 1915: Antennalyzer inventor Wendell C. Morrison was born. 1922: 136.4 °F (58 °C), the world's highest shade temperature was recorded 25 miles south of Tripoli, Libya. 1937: Polaroid Corporation was founded. 1945: Cunningham and Werner first isolated a microscopic amount of americium (Am, 95). 1956: IBM introduced the 350 RAMAC hard disk drive (HDD). 1961: An unmanned Mercury (MA-4) capsule was orbited and recovered by NASA in a test for thefirst manned flight. 1970: The Concorde SST landed for first time at Heathrow airport. 1977: The first diesel automobiles introduced by General Motors. 1985: The first anti-satellite intercept test took place when a weapon launched from an F–15 destroyed a satellite orbiting at a speed of 17,500 miles per hour approximately 290 miles above Earth. 2001: Airports closed after the terrorist attacks on 9-11 began reopening.

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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. 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.