Today is World UFO Day. 1862: Nobel laureate Sir William Bragg, after whom Bragg's Law of diffraction is named, was born. 1900: The first Zeppelin flight (LZ1) occurred over Lake Constance, Germany. 1926: The U.S. Congress established the Army Air Corps. 1934: Aviation pioneer Amelia Earhart disappeared in the Central Pacific during an attempt to fly around the world at the equator. 1962: The first Wal-Mart store opened for business in Rogers, AR. 1979: The first U.S. coin to honor a woman, the Susan B. Anthony dollar, was introduced. 1980: President Jimmy Carter reinstated draft registration (selective service) for males 18 years of age. 1982: Larry Walters using a lawn chair hoisted by 42 helium-filled weather balloons, rose to 16,000 feet after taking off from San Pedro, CA. 1997: Actor Jimmy Stewart, film star ("It's a Wonderful Life") and WWII bomber pilot, died. 2002: Steve Fossett became the first person to fly solo around the world nonstop in a balloon. 2013: Douglas Engelbart, inventor of the computer mouse, died. n·λ=2·d·sin θ
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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.