Showing 50 of 25456 papers

ABSORPTION AND SCATTERING OF $\gamma$-RAYS. II

L. V. Groshev
1937 SovietRxiv: ru-193701.35296

In the first part of our article, we analyzed the question of the attenuation of a beam of gamma rays as it passes through matter. Here we shall consider the question of the composition of the scattered radiation arising in matter as gamma rays pass through it; by scattered radiation we shall mean n…

THOMAS YOUNG

F. Arago
1937 SovietRxiv: ru-193701.35187

Biography, read at the public session of the Academy of Sciences on November 26, 1832.

ELECTRON-OPTICAL STUDIES OF CATHODES

N. D. Morgulis
1937 SovietRxiv: ru-193701.29856

The development of electron optics and the electron microscope based on it, which began so fruitfully around 1932, led to the acquisition of a whole series of new, highly interesting data in the physics of processes occurring during the operation of cathodes, primarily thermionic cathodes of various…

THE STRUCTURE OF THE UNIVERSE\*

P. ten Bruggenkate
1937 SovietRxiv: ru-193701.25469

The advances achieved by astronomers in studies of the structure of the Universe over the past 20 years have aroused less interest among non-specialists than the powerful development of physics that took place over the same period, which overturned our previous notions. The reason for this apparentl…

On the Absorption and Diffusion of Slow Neutrons\*

E. Amaldi, E. Fermi
1937 SovietRxiv: ru-193701.16743

The study of slow-neutron absorption has made it possible to establish the existence of absorption bands corresponding to rather narrow energy intervals, which makes it possible to isolate relatively homogeneous groups of neutrons. This work will describe experiments and present some considerations …