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RF Cascade Workbook 2005 - RF Cafe
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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 - December 24

December 24

Joule logo

1818: James Joule, discoverer of the current/resistance/heat relationship and after whom the unit of energy is named, was born. 1865: Several veterans of the Confederate Army formed a private social club called the Ku Klux Klan (U.S. Senator Robert Byrd of WV, was a KKK Exalted Cyclops when in his 30s). 1872: Scottish physicist William Rankine, an early investigator of thermodynamics who developed the Rankine Cycle, died. 1873: Johns Hopkins, endower of the college named after him, died. 1904: Billionaire Howard Hughes was born. 1906: Reginald Fessenden gave what is generally considered to be the first broadcast of entertainment by radio. 1947: The point-contact transistor, invented days earlier by American physicists John Bardeen, Walter H. Brattain, and William Shockley, was presented to Bell Labs management. 1963: New York International Airport was rededicated as John F. Kennedy Airport. 1966: The unmanned Russian Luna 13 spacecraft landed on Moon. 1968: The crew of the Apollo 8 spacecraft, the first manned mission to the moon, transmitted a Christmas message from lunar orbit. 1979: The first European-built rocket, Ariane 1, successfully completed its maiden flight.

| 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.