Word: photochronograph
(lookup in dictionary)
(lookup stats)
Dates: during 1984-1984
Sort By: most recent first
(reverse)
...devoted much of his Army career to science. Assigned to evaluate the military potential in the experiments of the Wright Brothers, he became in 1908 one of the first passengers to fly, for all of nine minutes, in a Wright machine. As a young artilleryman, he invented the polarizing photochronograph to measure the speed of a projectile...
| 1 |