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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1874 Excerpt: ...this is meant in the above cited sentence, then it must be objected to as an erroneous view. (v. 406). 285. It is true that in raising the weight we momentarily communicate force to the same as long as the act of raising lasts. But it is equally true, that during the weight's ascent each successive single effort of the thus communicated force is, after having done its work, instantly cast off again as heat by the action of gravitation exerted in an opposite direction, and as soon as the weight ceases to rise, none of the communicated force remains in store, no more so than that it should remain if the weight had been dragged with great exertion along a rough horizontal surface, where by friction it loses its force of motion as fast as this force is being imparted to it by the muscle.--It is in falling that the weight gathers and stores up dynamic energy (vis viva), and it is in ascending or in being lifted that the weight loses the dynamic energy which was just being imparted to it in order to make it rise. 286. Yet although by the act of raising and lifting we are unable literally to store up in the weight the requisite force to drive the clockwork, we have nevertheless achieved thereby another object, we have put the weight into a situation or condition, in which it admits of being pulled along and moved by the gravitation-cosmolinece streaming towards the earth's centre. 287. Having endeavored to explain in 163-180 the cause of gravitation, I may here again refer to the subject in a somewhat more general view. From these paragraphs it follows, that we have throughout the whole universe a medium or web and weft of real force-lines, --in their function as gravitation-lines crossing and intersecting interstellar space in every conceivable directi...
