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An equation has been developed for the polarization, and the angle of maximum polarization of resonance radiation as observed along a magnetic field perpendicular to the electric vector and the direction of propagation of the incident beam. Explicit application has been made to the polarization...
Measurements of emission wave-lengths in the K β group of Ca and S in CaS and CaS O 4 , of Mg and S in MgS, of S in SrS and BaS, of Ca and Cl in Ca Cl 2 have been made from the secondary radiation from pressed blocks of the salts. An attempt is made to determine the origin of as many x-ray lines...
Data obtained by displacement interferometry have been reduced to give the variation of refractive index at infinite wave-length with density for pure nitrogen up to 0.01656 gram per cc. Precise data are also presented for dispersion in pure argon, and the Cauchy constants under NTP conditions...
The spinor equations for arbitrary spin and rest mass zero are examined in some detail. Fierz has shown that for all values of the spin f ( > 1 2 ) there exists only two "really" independent plane wave solutions instead of ( 2 f + 1 ) when the rest mass is not zero. Fierz later showed, in rather...
The radiofrequency spectra of H 2 , D 2 , and HD molecules have been obtained for transitions corresponding to reorientations of the rotational angular momenta of the molecules. From these spectra the rotational magnetic moments of H 2 , HD, and D 2 molecules in the first rotational states are...
With the use of Fermi-Thomas statistical eigenfunctions the separations of the 3 s 3 d D 3 term of MgI are evaluated, taking into account all the magnetic interactions in the atom and the electrostatic interactions with other configurations. The smallness of the observed separations is found to...
The energy release in the reaction Li 6 ( p , α ) He 3 has been determined by a comparison of the He 4 range with that of the alpha-particles from Be 9 ( p , α ) Li 6 . The energy of the latter reaction is accurately known from electrostatic deflection measurements. The determination was...
The rate of increase of the entropy of a simple viscous fluid, capable of conducting heat, is investigated in greater detail than has hitherto been customary. It is shown that, if Kelvin's hypothesis concerning the absolute temperature be adopted, and the usual law of viscosity be assumed, the...
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