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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 - May 11
May 11

1st Public Demo of VisiCalc. Click here to return to the RF Cafe homepage.

1811: Urbain-Jean-Joseph Le Verrier, who calculated the likely position of Neptune so closely that it took Johan Galle only an hour of search to find, was born. 1881: Theodore von Kármán, who designed the Bell X-1 supersonic airplane, was born. 1924: Nobel astronomer Antony Hewish, the discoverer of pulsars, was born. 1928: Radio station WGY, in Schenectady, NY, began America’s first regularly scheduled TV broadcasts. 1934: The Dust Bowl began with strong winds stripping topsoil off of farm fields in the Great Plains. 1946: Dr. Robert Jarvik, inventor of the first artificial heart intended as a permanent replacement (and married to super genius IQ Marilyn vos Savant), was born. 1951: Jay Forrester filed a patent application for the matrix core memory. 1979: The VisiCalc spreadsheet program was announced. 1997: IBM's Deep Blue supercomputer defeated Garry Kasparov, becoming the first computer to beat a world-champion chess player. 1998: A French mint produced the first coins of Europe's single currency: the Euro.

| 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.

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

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