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 RF Cafe Forums 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 Bittele Centric RF Conduct RF Copper Mountain Technologies Empower RF everything RF Exodus Advanced Communications Innovative Power Products ISOTEC KR Filters Lotus Systems PCB Directory Rigol RF Superstore San Francisco Circuits Reactel RFCT TotalTemp Technologies Triad RF Systems Windfreak Technologies Withwave LadyBug Technologies Wireless Telecom Group Sponsorship Rates RF Cafe Software Resources Vintage Magazines Thank you for visiting RF Cafe!
RF Superstore (RF Components) - RF Cafe

Day in Engineering History Archive - February 24

February 24

"His Master's Voice" trademarked. Click here to return to the RF Cafe homepage.Day in Engineering History February 24 Archive - RF Cafe1663: Thomas Newcomen, inventor of the atmospheric steam engine, was born. 1810: Henry Cavendish, discoverer of hydrogen and nitrogen, died. 1815: Robert Fulton, whose Clermont was the first truly successful steamboat, died. 1839: William Otis received a patent for the steam shovel. 1856: Russian mathematician Nikolay Lobachevsky, who is credited with developing non-Euclidean geometry, died. 1923: Edward Morley, of Michelson-Morley speed of light measurement fame, died. 1925: RCA's (Victrola Talking Machine Company) "His Master's Voice" was trademark registered. 1942: The Voice of America (VOA) radio began its broadcasts to Nazi occupied nations. 1942: The U.S. Government stopped shipments of all 12-gauge shotguns for sporting use for the wartime effort. 1949: "Bumper 5," the first two-stage rocket to reach outer space was launched from the White Sands Proving Grounds, NM. 1968: The discovery of pulsars was announced by Nature. 1987: An exploding supernova was discovered in the Large Magellanic Cloud galaxy.

| 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.

Exodus Advanced Communications Best in Class RF Amplifier SSPAs
Copper Mountain Technologies (VNA) - RF Cafe
Innovative Power Products Passive RF Products - RF Cafe
RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

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