Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising Magazine Sponsor RF Cafe RF Electronics Symbols for Visio RF Electronics Symbols for Office Word RF Electronics Stencils for Visio Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Anritsu Alliance Test Equipment Amplifier Solutions Anatech Electronics Axiom Test Equipment Berkeley Nucleonics Centric RF Conduct RF Copper Mountain Technologies Empower RF everything RF Exodus Advanced Communications Innovative Power Products ISOTEC KR Filters PCB Directory Rigol San Francisco Circuits Reactel RF Connector Technology TotalTemp Technologies Triad RF Systems Windfreak Technologies Withwave LadyBug Technologies Wireless Telecom Group Sponsorship Rates RF Cafe Software Resources Vintage Magazines RF Cafe Software RF Cafe Sponsor Links Werbel Microwave Thank you for visiting RF Cafe!
Boonton

Day in Engineering History Archive - December 24

Day in Engineering History December 24 Archive - RF CafeDecember 24

1818: James Joule, discoverer of the current/resistance/heat relationship and after whom the unit of energy is named, was born. 1865: Several veterans of the Confederate Army formed a private social club called the Ku Klux Klan (U.S. Senator Robert Byrd, of WV, was a KKK Exalted Cyclops when in his 30s). 1872: Scottish physicist William Rankine, an early investigator of thermodynamics who developed the Rankine Cycle, died. 1873: Johns Hopkins, endower of the college named after him, died. 1904: Billionaire Howard Hughes was born. 1906: Reginald Fessenden gave what is generally considered to be the first broadcast of entertainment by radio. 1947: The point-contact transistor, invented days earlier by American physicists John Bardeen, Walter H. Brattain, and William Shockley, was presented to Bell Labs management. 1963: New York International Airport was rededicated as John F. Kennedy Airport. 1966: The unmanned Russian Luna 13 spacecraft landed on Moon. 1968: The crew of the Apollo 8 spacecraft, the first manned mission to the moon, transmitted a Christmas message from lunar orbit. 1968: Astronauts on Apollo 8 became the first men to orbit the Moon, and took the famous "Earthrise" photo. 1979: The first European-built rocket, Ariane 1, successfully completed its maiden 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. 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.

Windfreak Technologies Frequency Synthesizers - RF Cafe
Anritsu Test Equipment - RF Cafe
RF Electronics Shapes, Stencils for Office, Visio by RF Cafe
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free

 

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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