Recent Papers

FOREIGN BOOKS ON PHYSICS * in 1932

On the Fiftieth Anniversary of Max Born

PHYSICS OF THE UPPER ATMOSPHERE\*

Speech delivered on September 21, 1932, at a meeting of the H. Hertz Society in Bad Nauheim.

Superconductivity

Direct Measurements of the Mean Lifetime of Atomic States

WIDTH OF SPECTRAL LINES IN GASES

The proposed article compares the most important factors leading to the broadening of spectral lines in gases. The main focus is on the theoretical aspect; experimental material, generally speaking, is considered only in connection with theory and does not claim to be exhaustive.

ALEXANDER ANTONOVICH DOBIASH

A New Method for Measuring Diffusion in Liquids

Methods of Mathematical Physics

R. Courant, D. Hilbert. Methods of Mathematical Physics.

DIFFUSE SPECTRA AND CHEMICAL PROBLEMS

BAND SPECTRA *

As the final component of the term system of a diatomic molecule, rotation must also be considered. As was already mentioned at the beginning of the third part of this article, the simplest case of a rotating molecule is characterized by the fact that the electron system has no rotational angular mo…

PHOTOGRAPHIC PHOTOMETRY*

Modern Problems of Magnetism

Contemporary Problems of Magnetism, a collection dedicated to the tenth anniversary of the Moscow Magnetic Laboratory.

Preparation of Halide Compounds of Inert Gases

High Vacuum Technology

L. Dunoyer. High-Vacuum Technique.

Superconductivity of Metals

This article is an abridged account of McLennan’s report (McLennan, “Nature” 130, 879, 1932) on the discussion of electrical superconductivity in metals.

THE ELECTRIC THEORY OF FORCES BETWEEN ATOMS AND MOLECULES*

Report at the International Electrotechnical Congress in Paris in 1932.

On the Issue of Calculating the Impact Effect of a Load

This article develops a generalized procedure for calculating the dynamic deformation and stress effects produced when a moving mass acts on an elastic system. Starting from Hooke’s proportionality between load and absolute deformation, it derives equations for maximum deformation when the mass acce…

Theory of the Operation of a Cylindrical Milling Cutter with Helical Teeth

This paper develops a theoretical treatment of cylindrical milling cutters with helical teeth, addressing the lack of a derivation comparable to Salomon’s theory for straight-toothed cutters. It analyzes chip thickness, chip cross-section, tangential force, and power consumption using a variable spe…

Calculation of Leaf Springs for Parachute Devices

This paper develops a practical calculation method for leaf springs used in parachute safety mechanisms of hoisting cages, where existing design guidance was considered insufficient. Treating the spring as a beam of nearly uniform resistance, it derives strength and deflection relations for springs …

Use of Fuel Oil from the Semicoking Tar of Sapropelites from the Third Barzas Deposit in Diesel Engines: Foreword, Parts I and II

This study examines whether heavy fuel oil obtained as the distillation residue of semicoking tar from sapropelites of the Third Barzas deposit can serve as fuel for Diesel engines. It combines laboratory determination of physicochemical properties with comparative engine tests on a Yu. M. T. compre…

Theory of Spatial and Planar Kinematic Pairs

This paper develops a supplementary classification of spatial and planar kinematic pairs based on the relative motions possible at their working surfaces under external forces. It distinguishes sliding, rolling, and spinning, assigns symbolic factors according to their degrees of freedom, and uses t…

Stability Analysis of a Mine Vertical Water Pipeline

This paper develops an approximate stability calculation for a vertical mine water pipeline divided by shaft fastenings into separate sections. Treating the lowest section as the critical part of a weighty vertical rod, it applies an energy method with an asymmetric trigonometric form for the bent a…

Fine Structure of X-ray Absorption Spectra

Issues of Electrical Oscillatory Systems and Radio Engineering*

Report delivered at the opening of the All-Union Conference on Oscillations at the Institute of Physics of Moscow State University on November 12, 1931.

Internal Conversion of $\gamma$-Rays

S. O. MAIZEL, *Light and Vision*, GTTI, Moscow–Leningrad, 1932, 123 pp., price 3 rubles 20 kopecks.

S. O. Maizel. Light and Vision.

Physical Problems of Sound Film Technology

Some Physical and Chemical Problems of Lighting Engineering*

Lecture delivered at the Society for Electric Lighting (Osram Concern) on April 7, 1931.

Guiding Ideas in Faraday’s Work

Problems of Quantitative Chemical Spectral Analysis \*

The task of chemical spectral analysis consists in determining the chemical composition of a material from its spectrum. In many cases, spectral analysis serves as an aid to chemical analysis; moreover, it makes it possible to solve problems that are altogether insoluble by chemical methods. The lat…

Mechanism of Electronic Conductivity in Dielectrics and Semiconductors

Abstract of the article by V. Gudded. On conduction and photoelectrons in insulators and semiconductors.

Acoustics. Electricity. Structure of Matter

On the Electronic Theory of Metals*

Diffraction of X-rays by Liquids

The structure of the liquid state is still very little known, and attempts to clarify this question by studying X-ray diffraction were therefore natural. At present this problem is still far from being resolved, but in any case the results obtained already make it possible to draw a number of very i…

Neutrons*

On the Application of Visible and Invisible Rays in Communication Technology and Traffic Safety\*

Penetrating Radiation of Light Elements and Experimental Evidence for the Existence of Neutrons

Acoustics

In the 32 years of its existence, quantum statistics has developed into an independent chapter of theoretical physics, closely connected with the fundamental and most interesting p

L. Brillouin. Quantum statistics and their applications. Les presses universitaires de Prance.

Cathode-Ray Oscillograph\*

There are several different types of oscilloscopes. The type to which this article is devoted uses a stream of cathode rays and is therefore called a cathode-ray oscilloscope. Its principle of operation is quite simple. In this oscilloscope, there are two electrodes in a long evacuated glass tube; o…

QUANTUM MECHANICS AND CHEMICAL REACTIONS *

Presentation at the Conference on Chemical Kinetics organized by the American Chemical Society.

A New Method of Photography in Infrared Rays

456 pp., 94 figs., price 4 rub. 70 kop. GTTI, 1923, 2nd ed.

M. Ya. Vygodsky. Foundations of the Calculus of Infinitesimals.

ARTIFICIAL TRANSFORMATION OF ELEMENTS

G. Gamow. Constitution of Atomic Nuclei and Radioactivity. Pp. VIII + 114, Oxford University Press, Oxford 1931, 10 s. 6 d. (The International Series of Monographs on Physics, edit

G. A. Gamow. Constitution of Atomic Nuclei and Radioactivity.

FIFTY YEARS OF EXPERIMENTAL RESEARCH ON THE EFFECT OF WATER VAPOR ON THE COMBUSTION OF CARBON MONOXIDE*

The inclusion in the pages of Uspekhi of an article devoted—at first glance—to a specialized question requires explanation. The study of combustion, in particular the mechanism of gas explosion, is becoming a research task of the utmost urgency. Every step forward in our knowledge of the mechanism o…

Absorption and Scattering of $\gamma$-Rays

Model Image of the Electron Cloud of Hydrogen-like Atoms

1. G. P. THOMSON, *Wave Mechanics of Free Electrons*.

G. P. Thomson. The Wave Mechanics of free electrons.