Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 487
illl. VVlKELKhS TeLKPHONE UTILIZED IN AviATION One of the most notable developments of the war was the directing of a squadronof airplanes in intricate maneuvers by wireless telephone either from the groundor by the commander in the leading plane. The upper panel shows the pilot andthe observer… … Cinematograph Film of a Bdllet fired through a Soap Bubble The flight of the missile may be followed easily. It will be seen that the bubble breaks, not when the bullet enters, but when it emerges. (From Moving Pictures, by F. A. Talbot. Courtesy of J. B. Lippincott Company)
Physics
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