Quotes & Sayings About Law Of Conservation Of Energy

To Nature nothing can be added; from Nature nothing can be taken away; the sum of her energies is constant, and the utmost man can do in the pursuit of physical truth, or in the applications of physical knowledge, is to shift the constituents of the never-varying total. The law of conservation rigidly excludes both creation and annihilation. Waves may change to ripples, and ripples to waves; magnitude may be substituted for number, and number for magnitude; asteroids may aggregate to suns, suns may resolve themselves into florae and faunae, and floras and faunas melt in air: the flux of power is eternally the same. It rolls in music through the ages, and all terrestrial energy - the manifestations of life as well as the display of phenomena - are but the modulations of its rhythm. — John Tyndall

The first demonstration of the law of conservation of energy was not by a physicist but by a medical man. He demonstrated with rats. If you burn food you can find out how much heat is generated. If you then feed the same amount of food to rats it is converted, with oxygen, into carbon dioxide, in the same way as in burning. When you measure the energy in each case you find out that living creatures do exactly the same as non-living creatures. The law for conservation of energy is as true for life as for other phenomena. Incidentally, — Richard Feynman

The law of the conservation of energy is already known, viz. that the sum of the actual and potential energies in the universe is unchangeable. — William John Macquorn Rankine

Nature abhors a hero. For one thing, he violates the law of conservation of energy. For another, how can it be the survival of the fittest when the fittest keeps putting himself in situations where he is most likely to be creamed? — Solomon Short

How do fields express their principles? Physicists use terms like photons, electrons, quarks, quantum wave functions, relativity, and energy conservation. Astronomers use terms like planets, stars, galaxies, Hubble shift, and black holes. Thermodynamicists use terms like entropy, first law, second law, and Carnot cycle. Biologists use terms like phylogeny, ontology, DNA, and enzymes. Each of these terms can be considered to be the thread of a story. The principles of a field are actually a set of interwoven stories about the structure and behavior of field elements, the fabric of the multiverse. — Peter J. Denning

'Conservation' (the conservation law) means this ... that there is a number, which you can calculate, at one moment-and as nature undergoes its multitude of changes, this number doesn't change. That is, if you calculate again, this quantity, it'll be the same as it was before. An example is the conservation of energy: there's a quantity that you can calculate according to a certain rule, and it comes out the same answer after, no matter what happens, happens. — Richard P. Feynman

Since the moment when, at the sight of his beloved and dying brother, Levin for the first time looked at the questions of life and death in the light of the new convictions, as he called them, which between the ages of twenty and thirty-four had imperceptibly replaced the beliefs of his childhood and youth, he had been less horrified by death than by life without the least knowledge of whence it came, what it is for, why, and what it is, Organisms, their destruction, the indestructibility of matter, the law of the conservation of energy, development - the terms that had superseded these beliefs - were very useful for mental purposes; but they gave no guidance for life, and Levin suddenly felt like a person who has exchanged a thick fur coat for a muslin garment and who, being out in the frost for the first time, becomes clearly convinced, not by arguments, but with the whole of his being, that he is as good as naked and that he must inevitably perish miserably. — Leo Tolstoy

The law of conservation of energy tells us we can't get something for nothing, but we refuse to believe it. — Isaac Asimov

All my working life I have remembered his brilliant analogy between the law of conservation of energy and the problem of trying to dry yourself with wet towels. — Anonymous

Rincewind agreed moodily. He tried to explain that magic had indeed once been wild and lawless, but had been tamed back in the mists of time by the Olden Ones, who had bound it to obey among other things the Law of Conservation of Reality; this demanded that the effort needed to achieve a goal should be the same regardless of the means used. In practical terms this meant that, say, creating the illusion of a glass of wine was relatively easy, since it involved merely the subtle shifting of light patterns. On the other hand, lifting a genuine wineglass a few feet in the air by sheer mental energy required several hours of systematic preparation if the wizard wished to prevent the simple principle of leverage flicking his brain out through his ears. — Terry Pratchett

At first it appears as if the law of conservation is false, but energy has the tendency to hide from us and we need thermometers and other instruments to make sure that it is still there. We — Richard Feynman

In the vestibule of the Manchester Town Hall are placed two life-sized marble statues facing each other. One of these is that of John Dalton ... the other that of James Prescott Joule ... Thus the honour is done to Manchester's two greatest sons - to Dalton, the founder of modern Chemistry and of the atomic theory, and the laws of chemical-combining proportions; to Joule, the founder of modern physics and the discoverer of the Law of Conservation of Energy.
One gave to the world the final proof ... that in every kind of chemical change no loss of matter occurs; the other proved that in all the varied modes of physical change, no loss of energy takes place. — Henry Enfield Roscoe