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Day in Engineering History Archive - October 9

Day in Engineering History October 9 Archive - RF CafeOctober 9

Click here to return to the RF Cafe homepage.1604: Johannes Kepler and other observers saw the appearance of a "new" star in the constellation of Ophiuchus, which became Supernova 1604. 1801: Auguste-Arthur de La Rive, who pioneered the electrochemical theory of batteries, was born. 1876: The first two-way telephone conversation occurred over outdoor wires between Alexander Graham Bell and Watson over the telegraph line linking Boston and East Cambridge. 1879: Nobel Prize winner Max Von Laue, who discovered the diffraction of x-rays in crystals, was born. 1906: Joseph Glidden, inventor of barbed wire, died. 1930: Aviator Laura Ingalls landed in Glendale, CA, to complete the first solo transcontinental flight across the U.S. by a woman. 1943: Pieter Zeeman who won Noble Prize in Physics for splitting of spectral lines (the Zeeman effect), died. 1988: Felix Wankel, inventor of the pistonless internal combustion engine, died. 1992: The Great Meteor, seen from Kentucky to New York, was observed at 7:50 pm EDT, and hit a Chevrolet Malibu car belonging to Mrs. Michelle Knapp of Wells Street in Peekskill, NY.

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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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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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