From biplanes to jets...
Hot dogging in Paris.
This year marks two aviation anniversaries, cnet.com reports.
One is the 70th anniversary of the US Air Force, born in 1947 when President Harry S. Truman signed the National Security Act of 1947.
The other is the 110th anniversary of the first US military service dedicated to flying aircraft in the national defense: the Aeronautical Division of the US Signal Corps, which came into being on Aug. 1, 1907.
For a fascinating slide show that looks at the 40 years of aircraft from 1907 to 1947: https://www.cnet.com/pictures/before-the-air-force/?ftag=COS-05-10aaa0b&linkId=40263361
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Chilling: Inside a Titan ICBM Missile Site.