Today in 20th century tech history
July 19
In 1963: Joe Walker flies a North American X-15 to a record altitude of 106,010 meters (347,800 feet) on X-15 Flight 90. By exceeding an altitude of 100 km, this flight qualifies as a human spaceflight under international convention.
In 1983: Michael W. Vannier and colleagues submit the first publication with a three-dimensional reconstruction of a human head X-rays using computed tomography.
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