ファイル:Nuclear artillery test.jpgOperation Upshot/Knothole, a 1953 test of a nuclear artillery projectile at Nevada Test Site (photo depicts 280 mm gun and explosion). Source: http://www
ファイル:Vickers machine gun testing 3.jpgTest-firing of a Vickers machine gun. Photo from The War Illustrated, 10 July 1915. Caption reads: After the mechanism of the Maxim has been examined and
ファイル:Vickers machine gun testing 1.jpgmachine guns on their way to being tested. Photo from The War Illustrated, 10 July 1915. Caption reads: Conveying a trolley of Maxim guns to the test shed
ファイル:Vickers machine gun testing 2.jpgRemoving the barrel of a Vickers machine gun during testing. Photo from The War Illustrated, 10 July 1915. Caption reads: Withdrawing a faulty barrel from