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Day in Engineering History Archive - July 13

Day in Engineering History July 13 Archive - RF CafeJuly 13

Ernõ Rubik Born Today - RF Cafe1836: John Ruggles received patent #1 from the U.S. Patent Office for a traction wheel used in locomotive steam engines, under a new system for numbering patents. 1897: Guglielmo Marconi received U.S. patent #586,193 for a wireless telegraph. 1919: The first lighter-than-air transatlantic flight was completed by airship R-34. 1921: Gabriel Lippmann, who produced the first color photographic plate, died. 1944: Ernő Rubik, inventor of the Rubik's Cube, was born. 1969: Russia launched the unmanned Luna 15 to the Moon. 1947: Europe accepted the Marshall Plan to aid European recovery following WWII. 1977: A lightning-induced power failure blacked out New York City for 25 hours, during which time about 4,500 rioters were arrested and $61M damage was done. 1978: Lee Iacocca was fired as president of Ford Motor Company by chairman Henry Ford 2nd. 1995: The Galileo spacecraft released a probe towards Jupiter that is to become the first Earth emissary ever to penetrate the atmosphere of any of the outer gas giants.

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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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Copyright: 1996 - 2018
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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