Recent Papers

RADIOACTIVITY OF POTASSIUM\*

Relatively too much space is devoted to the description of a spectrometer with two crystals. In conclusion, only three pages in all are occupied by an exposition of questions of th

EXPERIMENTS WITH SLOW NEUTRONS

Noted misprints in the journal Uspekhi Fizicheskikh Nauk No. 7, 1935

Excitation of X-rays by Fast Mercury Ions

A New Type of Monochromator

ARTIFICIAL RADIOACTIVITY OF GASEOUS NITROGEN INDUCED BY DEUTERONS *

THEORY OF THE METALLIC STATE \*

Noted misprints in issue no. 8 of the journal Physics-Uspekhi

PARA- AND ORTHOHYDROGEN

On the Fourth Radioactive Family with Atomic Weights $4n+1$

A New Theory of Born’s Electromagnetic Field

Recent Advances in the Field of Photovoltaic Cells\*

This article provides an overview of photocells at their present stage of development, with particular attention given to photocells based on the external photoelectric effect. The first section presents a comparative analysis of three different types of photocells, namely: photoconductive cells, ba…

Laue diagrams with optical waves

On the Current State of Gyromagnetic Research

Experimental Physics

Physical Characteristics of the Singing Voice

Hydraulic Particle Counter and Its Application

Study of Quartz Vibrations Using an Optical Interferometer

What Is Entropy

NEUTRONS KNOCKED OUT BY $\gamma$-QUANTA FROM BERYLLIUM NUCLEI

DIFFRACTION OF MOLECULAR BEAMS FROM CRYSTALS

ACOUSTIC WAVES OF LARGE AMPLITUDE

ARTHUR EDDINGTON, New Pathways in Science.

Theory of the Metallic State. II. Testing Fermi Statistics on Equilibrium Effects

The authors set themselves the aim of compiling a handbook of formulas, curves of experimental data, and mathematical tables that would satisfy the needs of the physicist-researche

Artificial Production of Radioactive Elements

THE ATOMIC NUCLEUS AND THE PERIODIC TABLE OF ELEMENTS

A report delivered at the congress dedicated to the centenary of the birth of D. I. Mendeleev, in Leningrad on September 11, 1934.

INVESTIGATION OF A SPARK DISCHARGE USING A WILSON CLOUD CHAMBER\*

ELECTRICAL FLUCTUATIONS AND THE LIMIT OF SENSITIVITY OF ELECTRICAL INSTRUMENTS*

New Applications of Infrared Photography

ARE METAL ATOMS DEFORMED DURING COLD WORKING

Electrical Conductivity of Electronic Semiconductors

Results of X-Ray Examination in Technology.

J. H. de Boer — Electron emission and adsorption phenomena.

Effective Cross Section of Gas Molecules with Respect to Slow Electrons and Ions

DELAY TIME IN THE MAGNETO-OPTICAL FARADAY EFFECT

Photoelectric Devices

HIGH-ENERGY QUANTA

“Applications” comprises three chapters.

Book review: Brüche E. and O. Scherzer. Geometrische Elektronenoptik. Grundlagen und Anwendungen.

Theory of the Metallic State\*

It should be noted that the translation of the second part of Eucken’s third edition, supplemented and revised by A. N. Frumkin, is better than the original. Electromotive forces

Optical Evidence of Overtone Oscillations in Piezoelectric Quartz

PHYSICAL PROBLEMS OF THE PHYSIOLOGY OF HEARING \*

NEUTRONS KNOCKED OUT BY γ-QUANTA FROM BERYLLIUM NUCLEI

GENERATION AND APPLICATION OF ULTRASHORT UNDAMPED ELECTRIC WAVES

ULTRASONIC VIBRATIONS

Ultra-acoustic oscillations, i.e., oscillations having a frequency on the order of tens of thousands of hertz and higher, obtained predominantly by electromechanical means (usually with the aid of piezoelectric quartz), have in recent years attracted the attention of a number of researchers; as a re…

III and IV. Schrödinger equation for one and many particles.

REMARKS ON A. A. EICHENWALD’S ARTICLE “ACOUSTIC WAVES OF LARGE AMPLITUDE” *

$\gamma$-QUANTA OF HIGH ENERGY ARISING IN THE BOMBARDMENT OF LITHIUM AND FLUORINE BY FAST PROTONS¹