Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 196
Whence 47rR^_47rR!a_ j^.^_.p_: = 4^(« _ a!) - 47rR-/ - P. But, as we have before seen (197), in order that the balloon may rise, theweight must be less by 8 or 10 pounds than that given by this equation. 178 On Gases. [200- CHAPTER IV. APPARATUS WHICH DEPEND ON THE PROPERTIES OF AIR. 200.… … Fig. 176. by Otto von Guericke in 1650, a few years after the invention of the baro-meter. The air-pump, as now usually constructed, may be described as follows.Fig. 176 represents a general view ; 177 a section, and figs. 178-183various parts ; the letters in all the figures having eveiywhere the…
Physics
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