1918: The X-ray expert Dr. Eugene W. Caldwell, died of X-ray burns in NY. 1840: Samuel Morse was granted a patent for telegraphy signals. 1935: The U.S. Army Air Forces established and headed by General Hap Arnold, replacing the Army Air Corps. 1939: The world's first airplane to be propelled solely by a liquid-fuelled rocket, the Heinkel He-176, flew for first time. 1942: Japanese submarine I-25 launched an attack on Fort Stevens, located on the Columbia River in OR. 1950: Willie Mays graduated from high school and immediately signed with the New York Giants. 1977: The Trans-Alaska Pipeline began carrying oil from the Arctic Ocean to Prince William Sound. 1980: "Blues Brothers" with Dan Aykroyd and John Belushi premiered. 1981: Henri-Gaston Busignies, developer of HF (high frequency) direction finding equipment, died. 1996: Westinghouse Electric agreed to buy Infinity Broadcasting for $4.9 billion. 2005: Jack Kilby, inventor of the integrated circuit, died. 2006: IBM and the Georgia Institute of Technology demonstrated the first silicon-based transistor that operates at 500 GHz.
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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. Many 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. Images used in the logos are often from open source websites like
Wikipedia, and are specifically credited with a hyperlink back to the source where possible.
Fair Use laws permit small
samples of copyrighted content.