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 Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines RF Cafe Software,T-Shirts,Coffee Mugs Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Stencils for Visio RF & EE Shapes for Word Advertising RF Cafe Homepage Sudoku puzzles Facebook Test notes Thank you for visiting RF Cafe!
everythingRF RF & Microwave Parts Database (h2) - RF Cafe

Day in Engineering History Archive - March 23

March 23

Happy Birthday Wernher von Braun! Click here to return to the RF Cafe homepage.Day in Engineering History March 23 Archive - RF Cafe1749: French mathematician Pierre-Simon Laplace born. 1775: American revolutionary Patrick Henry declared, "...give me liberty, or give me death!" In 1840: Englishman J.W. Draper took the first successful photograph of the Moon. 1857: The world’s first passenger safety elevator, by Elisha Otis, went into service in a store in New York City. 1873: Richard Proctor, who first proposed that lunar craters are caused by meteors rather than volcanic actions, was born. 1903: The Wright brothers obtained an airplane patent. 1909: British Lt. Shackleton found the magnetic South Pole. 1912: German rocket pioneer Wernher von Braun was born. 1983: President Ronal Reagan announced the Strategic Defensive Initiative (SDI, or "Star Wars"). 1989: Electrochemists Stanley Pons and Martin Fleischman announced that they had created nuclear ("cold") fusion in a test tube at room temperature. 2001: The Russian space station, Mir, burned up in Earth's atmosphere after far out-living its designed lifespan. 2007: Set theory mathematician Paul Cohen died.

| 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.

Rohde & Schwarz USA (RF Component Pocket Guide) - RF Cafe Axiom Test Equipment - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
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 Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

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

spacer