Faraday narrowly misses the discovery of the doctrine of conservation--Carnot's belief that a definite quantity of work can be transformed into a definite quantity of heat--The work of James Prescott Joule--Investigations begun by Dr. Mayer--Mayer's paper of 1842--His statement of the law of the conservation of energy--Mayer and Helmholtz--Joule's paper of 1843--Joule or Mayer--Lord Kelvin and the dissipation of energy-The final unification.英文原著 · 《A History of Science-3》
Ballinger, came into conflict with Mr. Pinchot over conservation, and the public assumed that the President was not only unconcerned to uphold conservation, but was willing that the natural resources of the Nation should fall again into the hands of greedy private corporations. This assumption proved to be false, and Secretary Ballinger was exonerated by a public investigation; but for two years, at least, the cloud hung over Mr. Taft's reputation, and, as always happens, the correction being far less nimble than the accusation, took a much longer time in remedying the harm that it had done.英文原著 · 《Theodore Roosevelt》
THE CONSERVATION OF ENERGY
[1] (p. The Forces of Inorganic Nature, a paper by Dr. Julius Robert Mayer, Liebig's Annalen, 1842. [2] (p. On the Calorific Effects of Magneto-Electricity and the Mechanical Value of Heat, by J. Joule, in Report of the British Association for the Advancement of Science, vol. XII., p.英文原著 · 《A History of Science-3》
In conclusion, the chief means of determining values in library work with children are these: An intensive study of the reading of children in relation to its social and informational worth to them; the right basis of education and training for such study, on the part of the workers; the direction of such study in a way that brings about a higher and more practical standard on the part of the worker; the conservation of her experience. These are the great services which the library may render children and they can be most fully accomplished, I believe, through departmental organization.英文原著 · 《Library Work with Children》
The physical care of a book comes naturally first because children have to handle books before they can read them for pleasure, or need to use them as reference helps. The subject is important both to librarian and to school boards because it affects the question of book replacement, and hence the expenditure of public money. Speaking broadly, it is a question of conservation.英文原著 · 《Library Work with Children》
Out of this doctrine naturally springs that of the conservation of force, so ably illustrated by Mr. Grove, Dr. Carpenter, and Mr. Faraday. This idea is no novelty, though it seems so at first sight. It was maintained and disputed among the giants of philosophy. Des Cartes and Leibnitz denied that any new motion originated in nature, or that any ever ceased to exist; all motion being in a circle, passing from one body to another, one losing what the other gained. Newton, on the other hand, believed that new motions were generated and existing ones destroyed.英文原著 · 《Medical Essays》
I felt it was only right to let you know personally: The Kingsford land may need to be reassigned as a conservation area.美剧 · 《Billions》
How land leases, conservation areas and water rights might have been eminent domained and such.美剧 · 《Billions》