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Day in Engineering History Archive February 4

| 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.
Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-) A couple 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.

February 4

Happy Birthday Charles A. Lindbergh - Please click here to visit RF Cafe.

1849: Adolphe Sax, inventor of the saxophone (no kidding), died. 1863: A patent for four-wheeled roller skates was awarded to James Plimpton of New York. 1890: Thomas Edison was issued a patent for a "Quadruplex Telegraph." 1902: Aviation pioneer Charles Augustus Lindbergh was born. 1906: Clyde Tombaugh, who discovered the non-planet Pluto, was born. 1928: Hendrik Lorentz, after whom the Lorentz force in electromagnetism is named, died. 1936: Radium E. became the first radioactive substance to be produced synthetically. 1941: Roy Plunkett received a patent for "tetrafluoro-ethylene polymers" (TEFLON). 1974: Satyendra Bose, of the Bose-Einstein condensates fame, died. 1998: Bill Gates got a pie in his face in Brussels, Belgium.

 
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