Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 201
ntal direction,carried by the currents of air which prevailin the atmosphere. The aeronaut knows by the barometer whether he is ascending or descending, and by the samemeans he determines the height which he has reached. A long flag fixedto the car would indicate, by the position it takes either…
Physics
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