A History of Mechanics
Dover Publications, 1988 - 662 стор.
"A remarkable work which will remain a document of the first rank for the historian of mechanics." -- Louis de Broglie
Результати 1-3 із 71
On the other hand, a will be moved towards f by a constant force equal to g; in the
direction bc by a constant force equal to k; in the direction bd by a constant force
equal to h. Since the motion along be is produced by a zero force, the relation ...
dt | 6w; ôqi ôu; ôqi or finally 0b 0a ob da àu, 64, - àq. àu, = COnStant or (b, a) =
constant where (b, a) is an expression which has become known as a “Poisson
bracket. ” It is evident that (b, a) = — (a, b) and that (a, a) = 0. Poisson concludes ...
e - Sommerfeld develops the right hand side of this equation in powers of the
constant z, called the fine-structure constant and, going over to frequencies by
means of Planck's relation, arrives at y = (n, n') — (k, k'). Whence (*)-R(#)|Ho Ho (
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