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Day in Engineering History Archive - June 7

June 7

Day in Engineering History June 7 Archive - RF Cafe1761: John Rennie, designer of the London Bridge, was born. 1826: German physicist Joseph von Fraunhofer, who was the first to study the dark lines in the solar spectrum (Fraunhofer lines), died. 1868: John Sealy Townsend, who discovered the electron avalanche phenomenon, was born. 1900: Frederick Emmons, considered along with Shockley, to be the founder of Silicon Valley, was born. 1938: The Douglas DC-4 made its first test flight. 1981: Israel bombed the Baghdad nuclear reactor. 2000: Judge Thomas Penfield Jackson ordered the breakup of Microsoft, declaring the it should be split into two because it had ''proved untrustworthy in the past.''

This was one boring day in history.

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

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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    Kirt Blattenberger,
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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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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