•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™

Sitemap

>10,000 Unique Pages!

RF Cafe Software

RF Cascade Worbook
 RF Cascade Workbook 2005 - RF Cafe
Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
RF & EE Symbols Word
RF Stencils for Visio

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger
BSEE
KB3UON
EIEIO

Carpe Diem!
(Seize the Day!)

5th MOB:
My USAF radar shop

Airplanes and Rockets:
My personal hobby website

Equine Kingdom:
My daughter Sally's horse riding website

  Day in Engineering History Archive - April 30
April 30

Happy Birthday to Happy Birthday Johann Carl Friedrich Gauss!  Please click here to visit RF Cafe.

1777: German mathematician and experimenter in magnetism Carl Friedrich Gauss was born. 1897: J.J. Thomson first announced the existence of electrons at the Royal Institution Friday Evening Discourse. 1900: Famous railway engineer Casey Jones met his end in a collision with another train crossing his track. 1945: As Russian troops approached his Berlin bunker, Adolf Hitler committed suicide along with his wife of one day, Eva Braun. 1955: Mendelevium, element 101, was announced. 1964: The FCC ruled that all TV receivers should be equipped to receive both VHF (channels 2-13) and the new UHF (channels 14-83). 1975: The Vietnam War ended when the government in Saigon announced its unconditional surrender to the Vietcong - a slaughter ensued thereafter. 1997: London's Big Ben ground to a halt for hours. 2001: California businessman Dennis Tito arrived at the international space station aboard a Russian spacecraft.

| 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.

SEARCH More Than 10,000 Pages Indexed on RF Cafe

Copyright 1996 - 2016
Webmaster:  Kirt Blattenberger, BSEE - KB3UON
Family Websites:  Airplanes and Rockets | Equine Kingdom

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