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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 typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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Day in Engineering History Archive - June 29

June 29

1868: George Ellery Hale, responsible for the 200-inch telescope bearing his name on Palomar Mountain, was born. 1888: Professor Frederick Treves performed the first appendectomy in England. 1925: Marvin Pipkin filed for a patent for the frosted electric light bulb. 1954: The Atomic Energy Commission voted 4:1 against reinstating Dr. Robert Oppenheimer's access to classified information. 1961: The first triple launch of satellites on a single rocket (Transit 4A) was made at Cape Canaveral. 1964: The first remote control television went on sale. 1986: Billionaire Richard Branson set a new speed record for crossing the Atlantic. 1995: The Atlantis Shuttle and the Russian space station Mir docked, forming the largest man-made satellite ever to orbit the Earth.

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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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