Day in Engineering History Archive June 28

Day in Engineering History June 28 Archive - RF CafeJune 28

John Renshaw Carson - RF CafeTreaty of Versailles. Click here to return to the RF Cafe homepage.1886: John Renshaw Carson, developer of the Carson Rule of FM, BW = 2(Δf + fm), was born. 1886: Henri Moissan's discovery of fluorine gas was announced at the Paris Academy of Science. 1886: The first scheduled Canadian transcontinental passenger train departed from Montreal, Quebec for Port Moody, British, Columbia. 1889: Maria Mitchell, the first professional female astronomer in the U.S., died. 1919: The Treaty of Versailles was signed in France, ending World War I. 1939: Pan American Airways began the first transatlantic passenger air service. 1950: North Korean forces captured Seoul, South Korea. 1960: In Cuba, Fidel Castro confiscated American-owned oil refineries without compensation (Hugo Chavez just did the same in May 2007 - Citgo gas stations are owned by his government). 1965: The first commercial telephone conversation over a satellite took place between America and Europe over Early Bird I. 1976: The first women entered the U.S. Air Force Academy, in CO. 1990: Paperback Software was found guilty of copyright violation for copying the appearance and menu system of Lotus 1-2-3. 1991: Margaret Thatcher announced her retirement from the House of Commons. 2004: The U.S. transferred sovereignty back to Iraq.

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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.