RF Cafe Software

RF Cascade Workbook 2005 - RF Cafe
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Calculator Workbook
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RF & EE Symbols Word
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About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
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 ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:
 AirplanesAndRockets.com

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Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes RF Cascade Workbook RF Stencils for Visio Shapes for Word Thank you for visiting RF Cafe!

Day in Engineering History Archive - September 30

September 30

Johannes (Hans) Wilhelm Geiger Born Today - Please click here to visit RF Cafe.

1846: Ether was used as an anesthetic for the first time. 1882: The world's first hydroelectric power plant in the U.S. was opened on the Fox River, in Appleton, WI. 1882: Hans Geiger, inventor of the Geiger counter alpha particle detector, was born. 1882: Charles Lawrance, designer of the famed J-5 Whirlwind radial engine, was born. 1917: Irving Berlin Kahn, inventor of the teleprompter, was born. 1935: The Boulder Dam (renamed to Hoover Dam), in Boulder City, NV, was dedicated 1947: The World Series was televised for the first time, and the sponsors only paid $65,000 for the entire series between the Brooklyn Dodgers and the New York Yankees. 1949: The Berlin Airlift ended after 278,288 flights and delivery of 2,326,406 tons of supplies. 1954: The U.S. Navy commissioned the Nautilus submarine as the first atomic-powered vessel. 1968: The Boeing 747 was rolled out the factory. 1982: H. Ross Perot Jr. and Jay Colburn completed the first circumnavigation of the world in a helicopter, the Spirit of Texas. 1985: Seismologist Charles Richter, who devised the earthquake-measuring scale that bears his name, died.

| 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.
Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-) A couple 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.