To suppose, as is sometimes done in optical speculations, that a train of simple waves may begin at a given epoch, continue for a certain time involving it may be a large number of periods, and ultimately cease, is a contradiction in terms. The Theory of Sound - Page 73by John William Strutt Baron Rayleigh - 1894 - 984 pagesFull view - About this book
| John William Strutt Baron Rayleigh - Sound - 1894 - 984 pages
...accordingly in all cases equivalent to a combination of simple vibrations of frequencies n, n + m, **n — m, n + 2m, n — 2m, &c. It may be well here...solution of the equation for free vibration, viz.** u + KU, + n*u = 0 ........................ (1). may be put into another form by expressing the arbitrary... | |
| Baron John William Strutt Rayleigh - Sound - 1894
...equivalent to a combination of simple vibrations of frequencies n, n + m, n — m, n + 2m, n— 2»1, **&c. It may be well here to emphasise that a simple...solution of the equation for free vibration, viz.** ii + Ku + nu = 0 (1). may be put into another form by expressing the arbitrary constants of integration... | |
| Physics - 1895
...frequency m. In connection with this the author shows to be inadmissible the assumption sometimes made **in optical speculations, that a train of simple waves...begin at a given epoch, continue for a certain time,** and ultimately cease. Article (660) gives a more general treatment to the problem of free vibrations,... | |
| Van L. Lawrence - Medicine - 1939 - 244 pages
...that arises is as to the character of absolutely simple waves ; and here "it may be well to emphasize **that a simple vibration implies infinite continuance,...and ultimately cease, is a contradiction in terms*."** A like contradiction is involved if we speak of unpolarized light as homogeneous, really homogeneous... | |
| Science - 1900
...sometimes done in ojitical s|>eeulations. that a train of simple waves may In-gin at a given e|Kx-h, **continue for a certain time involving it may be a large number of** jx'riods, and ultimately cease, is a contradiction in terms" f. A like contradiction is involved if... | |
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