Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
because the atmosphericpressure is less; and, conversely, on descendiug into mines, etc., itrises (134)- Experiments prove that a difference of about 543 feet in•elevation produces a variation of 1 F. in the boiling point of water. It is impossible to cook meat, by hailing, on high mountains.… … filled with ether, or water, and sealed while tlie liquid is boiling. Whenthe liquid is cooled, the space above the fluid will be a vacuum ; then,if only the heat of the hand be applied to one bulb, the liquid will beset to boiling in the other, as indicated in the drawing. 330. Solids in solution…
Physics · Astronomy
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