Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 177
e wave began. Thus, if a moleculeof ether be disturbed at (7, and thevelocity of propagation be denotedby V, and the time elapsed sincethe disturbance by £, then will thefront of the wave at the expirationof this time be upon the surface ofa sphere whose centre is at C andradius C A = V. t. If the… … § 6. The circumstances attending the propagation ofluminous and sonorous waves are similar. The intensity ELEMENTS OF OPTICS. 169
Mechanics · Acoustics · Optics
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