The Detection of Underground Explosions
New methods make it possible to identify as such the great majority of earthquakes and explosions. Thus the technical basis for extending the ban on nuclear tests is established
Features
German Measles
This mild infection can have grave results during pregnancy. In 1964 an epidemic in the U.S. caused defects in 20,000 infants. Isolation of the virus has led to intensive efforts to develop a safe vaccine...
Modern Cryptology
The making and breaking of ciphers and codes has always played a large role in the affairs of nations. Today cryptanalysts gather secret intelligence with the aid of electronics and mathematics...
Poultry Production
The per capita consumption of poultry in the U.S. has more than doubled during the past 30 years. To meet the demand, automatic factories today convert tons of feed into tons of meat and eggs...
Polarized Accelerator Targets
Crystals in which the nuclear particles are all spinning in the same direction are bombarded with high-energy particles to measure how much the nuclear forces depend on the spin of the nuclear particles...
The Voodoo Lily
This tropical plant and its relatives emit a highly unpleasant odor that attracts insect pollinators. To broadcast its scent the plant resorts to unusual metabolic pathways that make part of it quite hot...
Short-Term Memory
Tests of how long information is retained and the circumstances in which it is forgotten suggest that short-term and long-term memory are closely related but involve some separate mechanisms...
Boron Crystals
X-ray analysis of the crystals formed by boron and its compounds has turned out to be fruitful beyond expectations and has led to a considerable extension of the concepts of structural chemistry...
Departments
50 and 100 Years Ago: July 1966
Science and the Citizen: July 1966
- Letters
Letters to the Editors, July 1966
- Recommended
Books
- Mathematical Recreation
Mathematical Games
- Amateur Scientist
The Amateur Scientist
- Departments
The Authors
Bibliography
