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 182
y rises in the tube a. The differencesof level in the tubes b and a give the pressures. Hence, by measuring theheight ab, by means of the cathetometer, the pressure in the space that isbeing exhausted is accurately given. This apparatus is also called thediffcre?itial barometer. 187. Aneroid… … Fig. 163. Fig. 164. by Casella ; it consists of a cylindrical metal box, exhausted of air, the topof which is made of thin corrugated metal, so elastic that it readily yields toalterations in the pressure of the atmosphere. When the pressure mcreases, the top is pressed inwards ; when, on…
Physics
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