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Day in Engineering History Archive - June 12

June 12

Baseball Hall of Fame Dedication - Please click here to visit RF Cafe.Day in Engineering History June 12 Archive - RF Cafe1851: Sir Oliver Lodge, who perfected the radio detection coherer, was born. 1885: Fleeming Jenkin, noted for his work in establishing units of electrical measurement, died. 1908: The Rotherhithe-Stepney tunnel beneath the Thames was opened. 1916: Silvanus Thompson, authority on electricity, magnetism and acoustics, died. 1939: The National Baseball Hall of Fame and Museum was dedicated in Cooperstown, NY - exactly 100 years to the day on which the game was invented by Abner Doubleday. 1944: Marvin Camras received a patent for the wire voice recorder. 1979: Bryan Allen flew the Gossamer Albatross, man powered, across the English Channel. 1981: "Raiders Of The Lost Ark" premiered. 1987: President Reagan, during a visit to the divided German city of Berlin, publicly challenged Soviet leader Mikhail Gorbachev to "tear down this wall." 2009: The switchover from analog to digital broadcast TV signals occurred.

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

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.

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RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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