Superconductivity at Room Temperature
It has not yet been achieved, but theoretical studies suggest that it is possible to synthesize organic materials that, like certain metals at low temperatures, conduct electricity without resistance...
Features
Fiber-Reinforced Metals
Modern knowledge of defects in solids opens a way to increase the strength of materials. A promising technique combines strong fibers such as crystal "whiskers" and a matrix of metal
Texture and Visual Perception
Random-dot patterns generated by computer show that the recognition of familiar shapes is not needed for the discrimination of textures or even, as had been thought, for the binocular perception of depth...
The Skin
The human body's largest organ, this protective envelope not only stabilizes temperature and blood pressure but also gives rise to the hair patches, odors and shades of color characteristic of man...
The Genetics of a Bacterial Virus
The T4 virus is a simple form of life with a precise architecture dictated by genes in its DNA molecule. By mapping the genes and learning their function one learns how the virus is put together...
How Opiates Change Behavior
In which rats that administer morphine to themselves become addicted whereas animals that receive the drug passively do not. This result suggests that human addiction depends on the circumstances of intake...
The Age of the Orion Nebula
This magnificent swirl of gas is made luminous by the ultraviolet radiation of hot young stars that are embedded in it. Its motions indicate that it may have begun to shine only some 23,000 years ago...
The Greeks and the Hebrews
The relation between these two peoples of the ancient Mediterranean is seldom, mentioned. Evidence that the oldest language of Crete is Semitic, however, suggests that the two cultures have common roots...
Departments
50 and 100 Years Ago: February 1965
Science and the Citizen: February 1965
- Letters
Letters to the Editors, February 1965
- Recommended
Books
- Mathematical Recreation
Mathematical Games
- Amateur Scientist
The Amateur Scientist
- Departments
The Authors
Bibliography
