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 21

March 21

Jean Baptiste Joseph Fourier born. Click here to return to the RF Cafe homepage.1768: Mathematician Jean-Baptiste-Joseph Fourier was born. 1861: The Constitution of the Confederate States of America established a Patent Office. 1877: French aircraft designer Maurice Farman was born. 1915: American inventor and engineer Frederick Taylor, known as the father of scientific management, was born. 1925: Carl Eilers, the "Father of FM and TV Stereo," was born. 1942: A secret report (held until after WWII was over) was submitted suggesting the name "plutonium" for artificial element 94 since it followed neptunium and uranium. 1965: Martin Luther King, Jr. led the historic 54-mile civil rights march from Selma to Montgomery, Alabama. 1963: Alcatraz prison in San Francisco Bay was emptied of its last inmates at the order of Attorney General Robert F. Kennedy. 1991: Leo Fender, inventor of the first solid body electric guitar, died. 1999: A balloon flown by Brian Jones and Bertrand Piccard achieved the first non-stop round-the-world balloon flight.

| 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.