Homepage - RF Cafe
Webmaster: Kirt Blattenberger | KB3UON | Sitemap | ©1996-2014
Menu below is just a small sample of what is here!
 
Custom Search
More than 10,000 searchable pages indexed.
•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Day in Engineering History Archive - February 7

| 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.

February 7

Happy Birthday Harry Nyquist! - Please click here to visit RF Cafe.

1804: American agriculturist and engineer John Deere was born. 1814: Gardner Colton, who first used nitrous oxide (laughing gas) as an anesthetic, was born. 1871: Henry Steinway, of overstrung iron-frame grand piano frame, died. 1889: Harry Nyquist, of Nyquist-Shannon sampling theorem fame, was born. 1935: Monopoly was first marketed by Charles Darrow, and was later bought my Parker Brothers. 1938: American industrialist Harvey Firestone, who founded the tire company that bears his name, died. 1943: The U.S. government announced that shoe rationing (stamp no. 17) would go into effect in two days, limiting each purchaser to three pairs for the remainder of the year. 1964: Beatlemania arrived in the U.S. on the Ed Sullivan Show. 1971: Women in Switzerland won the right to vote. 1984: Navy Captain Bruce McCandless became the first human being to fly untethered in space when he exited the U.S. space shuttle Challenger and maneuvered freely, using the Manned Maneuvering Unit. 2003: The last (unsuccessful) attempt was made to contact the Pioneer 10 spacecraft.


A Disruptive Web Presence

Custom Search
Over 10,000 pages indexed! (none duped or pirated)

Read About RF Cafe
Webmaster: Kirt Blattenberger
    KB3UON

RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
Personally Selected Manufacturers
RF Cafe T-Shirts & Mugs

RF Cafe Software

Calculator Workbook
RF Workbench
Smith Chart™ for Visio
Smith Chart™ for Excel
Your RF Cafe Progenitor & Webmaster
Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an
                                 engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem! (Seize the Day!)

5CCG (5th MOB): My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website