Search:                        
Please support my efforts by ADVERTISING!
Serving a Pleasing 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
Electronics Illustrated

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

Archive | Sitemap
kmblatt83@aol.com

Resources

Radar | AI
Cogitations
RF Museum
Videos | Pics |
Things | Logos
Radio Datashts
WJ Tech Notes
Day in History

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Johanson Technology Chip Antennas - RF Cafe Website

Day in Engineering History Archive - June 14

Day in Engineering History June 14 Archive - RF Cafe WebsiteJune 14

Flag Day. Click here to return to the RF Cafe homepage.Happy Birthday Charles-Augustin de Coulomb! - Please click here to visit RF Cafe.Today is Flag Day in the U.S. 1736: Charles-Augustin de Coulomb, after whom the unit of charge is named, was born. 1834: The first patent for sandpaper was issued. 1864: Alois Alzheimer, who discovered the disease named after him, was born. 1922: Warren G. Harding became the first president heard on radio, as Baltimore station WEAR broadcast his speech dedicating the Francis Scott Key memorial at Fort McHenry. 1933: The first sodium vapor lamps were installed in Schenectady, NY. 1940: German forces occupied Paris during World War II. 1946: Television inventor John Logie Baird died. 1950: The FBI's "10 Most Wanted Fugitives" program began. 1951: The Univac 1 was unveiled in Washington, DC. and dedicated as the world's first commercial digital computer. 1952: The keel was laid for the first American atomic submarine, the Nautilus. 1982: Argentina surrendered to Great Britain, ending the 74-day Falkland Islands War. 1989: Ronald Reagan was given honorary knighthood by Queen Elizabeth.  1995: A record 13 people were in space simultaneously when the Space Shuttle joined MIR.

Note: These historical tidbits (see daily list) 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) Directional Couplers - RF Cafe Website
Please Support My Advertisers!
Transcat | Axiom Test Equipment - RF Cafe Website
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Johanson Technology Antennas - RF Cafe Website

Exodus Advanced Communications Best in Class RF Amplifier SSPAs
Johanson Dielectrics EMI Filters - RF Cafe Website

Windfreak Technologies Frequency Synthesizers - RF Cafe Website

everythingRF AI Artificial Intelligence Client - RF Cafe Website

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

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel