A Study in Fertility Control
Can modern concepts of family planning have a significant impact in the underdeveloped countries? A study in Taiwan suggests that fertility can indeed be changed substantially by a planned program...
Features
High-Voltage Power Transmission
By raising voltages the cost of transmitting power can be lowered in 1953 the first 345,000-volt line was commissioned in the U.S. Today a 700,000-volt transmission line is being built in Canada...
Hybrid Nucleic Acids
One strand of nucleic acid will combine with another wherever the subunits of the two strands are complementary. Artificial combinations clarify the flow of information in the living cell...
The Chemistry of the Noble Gases
The first chemical compound containing a noble, or supposedly inert, gas was achieved in 1962. The chemistry of this rapidly growing class of compounds promises to shed light on the nature of the chemical bond...
Dwarf Galaxies
The most common type of galactic system in the universe, these sparsely populated stellar assemblages have proved to be very useful in investigating the evolution of galaxies
Leukemia
Although this disease characterized by the accumulation of white blood cells is almost always fatal, advances in knowledge of its cause and management give promise that it may someday be curable...
Arithmetic Behavior in Chimpanzees
In which Dennis and Margie are taught how to recognize numbers and write them in binary form. The manner in which chimpanzees master the language of mathematics may illuminate human verbal behavior...
Early Concepts of the Senses and the Mind
Man's understanding of how he perceives the real world was advanced in the 17th century by men who separated answerable physical questions from unanswerable metaphysical questions...
Departments
50 and 100 Years Ago: May 1964
Science and the Citizen: May 1964
- Letters
Letters to the Editors, May 1964
- Recommended
Books
- Mathematical Recreation
Mathematical Games
- Amateur Scientist
The Amateur Scientist
- Departments
The Authors
Bibliography
