Day in Engineering History Archive - April 10

April 10

U.S. Patent Systems Began - Please click here to visit RF Cafe.Day in Engineering History April 10 Archive - RF Cafe1790: The U.S. patent system was established. 1849: Walter Hunt patented the safety pin. 1863: Paul-Louis-Toussaint Héroult, inventor of the electric arc furnace, was born. 1900: Arnold Beckman, founder of Beckman Instruments, was born. 1912: The luxury liner RMS Titanic set sail from Southampton, England, on its ill-fated maiden voyage. 1930: The first synthetic rubber was produced. 1936: The 200" mirror arrived in Pasadena, CA, for Palomar Observatory's Hale Telescope. 1984: The damaged Solar Max satellite was snared by the Challenger space shuttle.

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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.