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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."
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"Creatures, I give you yourselves," said the strong, happy voice of Aslan. "I give to you forever this land of Narnia. I give you the woods, the fruits, the rivers. I give you the stars and I give you myself. The Dumb Beasts whom I have not chosen are yours also. Treat them gently and cherish them but do not go back to their ways lest you cease to be Talking Beasts. For out of them you were taken and into them you can return. Do not so."
"A vacuum is a hell of a lot better than some of the stuff that nature replaces it with."
"If men could fit water into their pockets, the ocean would be empty."
"Flowers are the beautiful hairs of the Mother Spring! Don't pluck them!"
"Eagle's flight of loneliness soars so high Around its sigh, no more alone the sky Other birds remain away, clouds pass byBetween shrouds of life and haze sun rays die."
"Hold out your hands to feel the luxury of sunbeams. Press the soft blossoms against your cheek, and finger their graces of form, their delicate mutability of shape, their pliancy and freshness. Expose your face to the aerial floods that sweep the heavens, 'inhale great draughts of space,' wonder, wonder at the wind's unwearied activity. Pile note on note the infinite music that flows increasingly to your soul from the tactual sonorities of a thousand branches and tumbling waters. How can the world be shriveled when this most profound, emotional sense, touch, is faithful to its service? I am sure that if a fairy bade me choose between the sense of sight and that of touch, I would not part with the warm, endearing contact of human hands."
Explore more quotes by Hermann von Helmholtz
"Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of the action of velocity. The sails are driven by air in motion - by wind."
"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."
"Reason we call that faculty innate in us of discovering laws and applying them with thought."
"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."
"Heat can also be produced by the impact of imperfectly elastic bodies as well as by friction. This is the case, for instance, when we produce fire by striking flint against steel, or when an iron bar is worked for some time by powerful blows of the hammer."
"A moving body whose motion was not retarded by any resisting force would continue to move to all eternity."
"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."
"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."
"I then endeavoured to show that it is more especially in the thorough conformity with law which natural phenomena and natural products exhibit, and in the comparative ease with which laws can be stated, that this difference exists."
"Each individual fact, taken by itself, can indeed arouse our curiosity or our astonishment, or be useful to us in its practical applications."
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