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 116
at the photographic density is propor-tional to the intensity of the image and the time of exposureand that the extent of woods or dark land is sufficient toform a background for all altitudes and all exposure-timesused. (a) How does the density of the trace vary with thealtitude? (b) Why is the… … Figure 5. Hand-held Camera Model A-1.(8 to 10 inch lens. Takes all standard 4x5 Graflex equipment).
Physics · Military art and science
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
