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About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
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

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Day in Engineering History Archive - April 14

April 14

The Sinking of the RMS Titanic - RF Cafe1629: Christiaan Huygens, discoverer of the wave theory of light and of Saturn's moon Titan, was born. 1807: German chemist Jeremias Richter, who discovered law of equivalent proportions, died. 1869: The airbrake was patented by George Westinghouse. 1894: The first public showing of Thomas Edison's kinetoscope took place. 1898: Harold Black, who developed the negative-feedback principle for amplifier design, was born. 1912: David Sarnoff picked up the distress call of the Titanic relayed from ships at sea: "S.S. Titanic ran into iceberg, sinking fast." 1918: U.S. First Aero Squadron engaged in America's first aerial dogfight with enemy aircraft over Toul, France. 1956: Ampex Corporation of Redwood City, CA, demonstrated the first commercial magnetic tape recorder for sound and picture. 1961: Manmade element Lawrencium (Lw, #103), was first produced. 2000: The Dow industrials plummeted 617 points and the Nasdaq composite index fell 355 points.

| 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.