Reconnaissance and Arms Control
Reconnaissance satellites are the chief means relied on by the U.S. and the U.S.S.R. to verify each other's compliance with the SALT I accords. What bearing will they and related systems have on SALT II?...
Features
The Origins of Nerve-Cell Specificity
Individual neurons differ from one another more than cells of other tissues do. Each young neuron apparently obtains a specific "address," which it uses in establishing its associations with other nerve cells...
Fishes with Warm Bodies
Not all fishes are cold-blooded. In some fast-swimming species of tuna and mackerel shark a "wonderful net" of arteries and veins conserves the heat of metabolism to increase the power of the swimming muscles...
The Chinese Language
This melodious tongue is spoken by more people than any other. Although the Chinese system of writing is complex, the basic structure of the language is remarkably simple
The Microstructure of the Ocean
The temperature and saltiness of seawater can now be mapped centimeter by centimeter. Such mapping is needed to learn how the sea is so effectively stirred by the winds and the tides
The Crashworthiness of Automobiles
The statistics of automobile crashes suggest changes in automobile design for the prevention of death and injury. Among these changes are a crushable front end and a reinforced passenger compartment...
Metal-Vapor Lasers
Among the many systems that can produce laser light is a vaporized metal mixed with another gas. Such lasers generate continuous laser radiation at good power levels and over a wide range of wavelengths...
Rotation in High-Energy Astrophysics
What is the source of the energy of pulsars, quasars and other strange objects? It may be gravitational energy converted Into rotational energy as a large object contracts into a small one...
Departments
50 and 100 years ago, February 1973
Science and the Citizen, February 1973
- Letters
Letters to the Editors, February 1973
- Recommended
Books, February 1973
- Mathematical Recreation
Mathematical Games, February 1973
- Amateur Scientist
The Amateur Scientist, February 1973
- Departments
The Authors, February 1973
Bibliography, February 1973
