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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 28

December 28

1520: Portuguese navigator Ferdinand Magellan reached the Pacific Ocean after passing through the South American strait that now bears his name. 1869: William Semple of Mt. Vernon, Ohio, patented chewing gum. 1882: English astrophysicist Sir Arthur Eddington was born. 1895: The world's first movie theater opened in Paris, France. 1923: French architect Gustave Eiffel, of tower fame, died. 1929: Dutch astronomer Maarten Schmidt, who discovered the distance vs. spectral shift paradox of quasars, was born. 1964: The U.S. launched the space probe Mariner 4 on a course to Mars. 1976: Patent #4,000,000 was issued in to Robert Mendenhall for a process for recycling asphalt compositions. 2000: U.S. retail giant Montgomery Ward announced it is going out of business after 128 years. 2005: The first in a series of test-bed Galileo navigation satellites was launched by the European Union.

| 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.