RF Cafe Software

RF Cascade Workbook 2005 - RF Cafe
RF Cascade Workbook

Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel
RF & EE Symbols Word
RF Stencils for Visio

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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Day in Engineering History Archive - March 1

March 1

Happy Birthday John Pell! - Please click here to visit RF Cafe.1611: John Pell, who introduced the division sign (the obelus, ÷) to England, was born. 1862: Peter Barlow, who invented the Barlow lens that is commonly used to increase optical magnification, died. 1896: Henri Becquerel discovered radioactivity when he developed the photographic plate he left in a desk drawer and found it had fogged with the image of the uranium compound crystals resting on it. 1932: The infant son of Charles and Anne Lindbergh was kidnapped from the family home near Hopewell, N.J. 1954: The hydrogen bomb, code-named Castle Bravo, was exploded in a test over the Bikini Atoll in the Pacific Ocean. 1966: The Soviet unmanned spacecraft Venus 3 crashed (purposely) on Venus. 1990: The controversial Seabrook, NH, nuclear power plant won federal permission to go on line after two decades of protests and legal struggles. 1991: Edwin Land, inventor of the Polaroid Land Camera, died. 2006: Jordanhill Railway Station became the 1 millionth article on the English Wikipedia.

| 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.