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Day in Engineering History Archive - December 20

Day in Engineering History December 20 Archive - RF CafeRobert Van de Graaff - RF CafeDecember 20

1868: American industrialist Harvey Firestone, who founded the tire company that bears his name, was born. 1879: Thomas Edison privately demonstrated his incandescent light at Menlo Park, NJ. 1880: New York's Broadway was first lighted by electricity and became known as the "Great White Way." 1901: American physicist and high voltage experimenter Robert Van de Graaff was born. 1921: German physician Richard Petri, inventor of the Petri Dish, died. 1945: The Office of Price Administration announced the end of tire rationing. 1946: Frank Capra's "It's a Wonderful Life," premiered. 1951: At 1:50 p.m., the first electricity ever generated by atomic power was produced by the EBR-1 turbine generator at the Argonne National Laboratory. 1952: Einsteinium (Es, 99) discovered. 1996: American astronomer and writer, producer of the "Cosmos" series, Carl Sagan died (see Butthead Astronomer).

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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.

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About RF Cafe

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Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

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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