Pageant
发表于 2025-3-25 06:04:30
Measures for Progress,ement age, he had served as Director since 1932 under five Secretaries of Commerce, Roy D. Chapin, Daniel C, Roper, Harry L. Hopkins, Jesse H. Jones, and, since the first of the year, under Roosevelt’s new Secretary, Henry A. Wallace. Anxious to return to the comfort and quiet of his old laboratory
ICLE
发表于 2025-3-25 08:34:27
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ACME
发表于 2025-3-25 14:09:25
The Age of the Stars,tefan law of total radiation, to allow the time-life of a star to be more than a small fraction of the age demanded by geological considerations. Discussions of the problem of maintenance of stellar energy have been given by Shapley. and Russell.. The former discusses an hypothesis of asymmetrical r
好开玩笑
发表于 2025-3-25 17:20:27
Statistics of Vocabulary,onship which is here communicated. The note which follows, admittedly incomplete, is published in this form because the subject is one which I can not pursue and which may be of interest to those who are actively enagaged in the study of language.
信徒
发表于 2025-3-25 23:55:38
Recent Developments in Quantum Mechanics,epts. The wave theory of light, firmly grounded by the wave explanations of interference and diffraction and by Maxwell’s electromagnetic theory of light waves, is now recognized as giving but one aspect of the nature of radiation. The corpusclar aspect of radiation is revealed in the photoelectric
Redundant
发表于 2025-3-26 01:24:26
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Fillet,Filet
发表于 2025-3-26 04:40:39
Note on the Velocity of Sound,pression and ρ is the density of the medium. It is usually explained that the compressibility modulus is the one associated with adiabatic compression which is equal to ..,where . is the ratio of the specific heat at constant pressure to that at constant volume, and . is the pressure.
Adornment
发表于 2025-3-26 12:00:22
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慌张
发表于 2025-3-26 14:04:51
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Multiple
发表于 2025-3-26 20:12:51
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