Please support my efforts by advertising!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™
Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post
Please Support My Advertisers!

Formulas & Data

Electronics | RF
Mathematics
Mechanics | Physics


About | Sitemap
Homepage Archive

Resources

Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos

Entertainment

Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes

Parts & Services

1000s of Listings

   Software: RF Cascade Workbook | Espresso Engineering Workbook | Cafe Press
RF Stencils for Visio | RF Symbols for Visio | RF Symbols for Office
Aegis Power | Alliance Test | Centric RF | Empower RF | ISOTEC | Reactel | RFCT | San Fran Circuits
Innovative Power Products (IPP) 90 deg Hybrid Couplers

Day in Engineering History Archive - January 13

Day in Engineering History January 13 Archive - RF CafeJanuary 13

1864: Wilhelm Carl Werner Otto Fritz Franz Wien, who formulated the black body radiation displacement law, was born. 1903: Granville Woods was issued a patent for an "Electric Railway System" of the type that "current for the car-motor is taken from working contacts or conductors along the road bed." 1906: Hugo Gernsback, of the Electro Importing Company, advertised radio receivers for sale for $8.50 in "Scientific American" magazine. 1920: A New York Times editorial proclaimed rockets can never fly. 1930: Sebastian de Ferranti, an electrical engineer who developed the first 10 kV (4x previous) transmission system and components, died. 1942: Henry Ford patented a plastic automobile, which allowed for a 30% decrease in car weight. 1942: The first use of an ejection seat to save a pilot was made by German test pilot Mr. Schenk. 2000: Microsoft chairman Bill Gates stepped aside as CEO and promoted company president Steve Ballmer to the position.

| 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. Many 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. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.

Innovative Power Products (IPP) 90 deg Hybrid Couplers