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 124
oid barometer to make an air-speed indicator. 34. Which is better as a siurface for the perforated suction plate and as a wiper to remove the electric charge, as the filmunrolls, a graphited cloth or a sheet of smooth metal?Why? What is the purpose of the graphite? 35. Why are static marks more…
Physics · Military art and science
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