The older view of the nature of heat was that it is a substance, very fine and imponderable indeed, but indestructible, and unchangeable in quantity, which is an essential fundamental property of all matter.
More Quotes from Hermann von Helmholtz:
Iron which is brought near a spiral of copper wire, traversed by an electrical current, becomes magnetic, and then attracts other pieces of iron, or a suitably placed steel magnet.Hermann von Helmholtz
Now, the external work of man is of the most varied kind as regards the force or ease, the form and rapidity, of the motions used on it, and the kind of work produced.
Hermann von Helmholtz
Reason we call that faculty innate in us of discovering laws and applying them with thought.
Hermann von Helmholtz
A raised weight can produce work, but in doing so it must necessarily sink from its height, and, when it has fallen as deep as it can fall, its gravity remains as before, but it can no longer do work.
Hermann von Helmholtz
But heat can also be produced by the friction of liquids, in which there could be no question of changes in structure, or of the liberation of latent heat.
Hermann von Helmholtz
You all know how powerful and varied are the effects of which steam engines are capable; with them has really begun the great development of industry which has characterised our century before all others.
Hermann von Helmholtz
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Based on Topics: Nature Quotes, Quantity QuotesBased on Keywords: imponderable, indestructible, unchangeable
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