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Day in Engineering History Archive - May 5

May 5

Alan Shepard became 1st American in Space. Click here to return to the RF Cafe homepage.Day in Engineering History May 5 Archive - RF Cafe1809: Mary Kies was awarded the first patent (1041X, destroyed in 1936 fire) to go to a woman, for a technique for weaving straw with silk and thread. 1834: William Whewell wrote a letter to Michael Faraday suggesting the names Anode and Cathode in describing the process of electrolysis. 1861: Peter Hewitt, inventor of the mercury vapor lamp, was born. 1917: Eugene Bullard becomes the first African-American aviator when he earned his flying certificate with the French Air Service. 1945: Holland and Denmark were liberated from Nazi control. 1945: The only WW II deaths of civilians on the mainland of the U.S. resulted from a Japanese bomb dropped over Gearhart Mountain, Oregon by an unmanned balloon. 1961: Alan Shepard became the first American in space when he made a 15 minute suborbital flight aboard the Freedom 7 spacecraft. 2000: A conjunction of the 5 bright planets - Mercury, Venus, Mars, Jupiter and Saturn occurred. 2007: Theodore Maiman, who invented the (ruby) laser, died.
2010: ICANN began allowing non-Latin characters for top-level domains.

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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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