Reason we call that faculty innate in us of discovering laws and applying them with thought.
quote by Hermann von Helmholtz
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A moving body whose motion was not retarded by any resisting force would continue to move to all eternity.
quote by Hermann von Helmholtz
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Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or be useful to us in its practical applications.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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The law in question asserts, that the quantity of force which can be brought into action in the whole of Nature is unchangeable, and can neither be increased nor diminished.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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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.
quote by Hermann von Helmholtz
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