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 Engineering Event Calendar RF Engineering Quizzes USAF radar shop Notable Quotes App Notes Calculators Education Engineering Magazines 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 Thank you for visiting RF Cafe!
Innovative Power Products Couplers

Day in Engineering History Archive - January 4

January 4

Sir Isaac Newton's Birthday - RF CafeDay in Engineering History January 4 Archive - RF Cafe1642: Sir Isaac Newton was born (per the Julian calendar used then). 1809: Blind French educator Louis Braille, inventor of the tactile reading system bearing his name, was born. 1895: Leroy Grumman, founder of Grumman Aircraft, was born. 1940: British Nobel physicist Brian Josephson, who discovered the Josephson effect, was born. 1958: The first man-made object to orbit the earth, the Russian Sputnik I satellite, fell back into the atmosphere and disintegrated after 92 days in space. 1961: Erwin Schrödinger, the famous physicist with the dead cat (maybe), died. 1983: Time Magazine published its 1982 "Man of the Year" edition, having selected the Personal Computer. 1994: The 104th Congress convened as the first entirely under Republican control since the Eisenhower era. 2004: Afghanistan approved a new, democratic, constitution. 2004: NASA's Spirit Rover, the first of two Mars exploratory landers, landed on Mars.

| 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 Triad RF Systems
Rohde & Schwarz USA (Signal Generator Pocket Guide 2) - 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