索赔
发表于 2025-3-30 09:20:16
The Special Theory of Relativityein (1879–1955). This theory is an outgrowth of nineteenth century physics— particularly of the synthesis of electromagnetic phenomena into a unified electromagnetic theory in 1864 by James Clerk Maxwell (1831–1879). One of its consequences was the prediction of the existence of electromagnetic wave
万灵丹
发表于 2025-3-30 13:23:35
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Dictation
发表于 2025-3-30 19:29:31
Some Properties of Electromagnetic Radiationes concerning the nature of light. Newton proposed a corpuscular theory of light without specifying definitely the nature of these corpuscles; Huygens proposed a wave theory to explain exactly the same phenomena that were explained by Newton in his corpuscular theory. In one important case, that of
Lasting
发表于 2025-3-30 22:21:19
X-Raysn placed at some distance from the tube. The source of the rays causing this fluorescence was traced to the walls of the cathode-ray tube. In further experiments he found that the interposition of various thicknesses of different substances between the screen and the tube reduced the intensity of th
Affectation
发表于 2025-3-31 03:45:40
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吊胃口
发表于 2025-3-31 06:24:53
Elements of Quantum Mechanicsn the atomic scale. There are many ways of getting started at this task. The method employed here is to make a set of assumptions which is known to lead to the correct results. This technique has the disadvantage of neglecting the historical development of the theory; also, our assumptions will not