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Day in History - Archive August 1

| 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.

August 1

1st Official Metre Defined - Please click here to visit RF Cafe.

Today is National Night Out. 1774: Oxygen was isolated from air successfully by chemist Carl Scheele and scientist Joseph Priestly. 1793: The first definition was made for the metre: 1/10,000,000 of the northern quadrant of the Paris meridian (5,132,430 toises of Paris, from the north pole to the equator). 1818: Maria Mitchell, the first professional female astronomer in the U.S., was born. 1831: The New London Bridge opened to traffic. 1907: The U.S. Army established an aeronautical division that later became the U.S. Air Force. 1941: The Willys Jeep (ala M.A.S.H.) was introduced, the one described by Times magazine as "...the Army's most intriguing new gadget." 1943: A PT-109 under the command of Lt. John F. Kennedy was rammed and cut in half by the Japanese destroyer Amagiri. 1943: Ground was broken for the Oak Ridge National Laboratory, TN, nuclear facility. 1946: The Atomic Energy Commission was established. 1956: The first commercial building heated by sun, the Bridgers and Paxton Office Building, opened in Albuquerque, NM. 1995: Westinghouse Electric Corporation struck a deal to buy CBS for $5.4 billion. 2000: A man in Israel become the first recipient of the Jarvik 2000, the first total artificial heart that can maintain blood flow in addition to generating a pulse.


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RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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