Most of us don't have anything really interesting in our basements, and certainly nothing of historical significance. In the case of a former engineer from Pittsburgh, his basement was home to a pair ...
NASA research mathematician Katherine Johnson is photographed at her desk at Langley Research Center in 1966. Johnson made critical technical contributions during her career of 33 years, which ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback