Problems in physics. Derived from military situations and experience (1919)
United States. War Dept. Committee on education and special training, Dodge, Homer Levi, 1887- · [Washington? · leaf 112
r hour, atan elevation of 2,000 feet. The camera is held at an angleof 45 degrees to the vertical. It is equipped with a 10-inchlens and carries a 4x5 plate with the 5-inch side horizontaland parallel to the fuselage. What are the longest exposureswhich can be made without blurring if an image… … » -I fl ^ .iso ofe iw ^ fl)C o> *-G 2 ffl « S ft • bo a a a S S PS » s
Physics · Military art and science
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