Operations Research
It is the application of scientific method to broad problems in war, government and business. First developed by the British during World War II, it is now beginning to flower in the U. S.
Features
The Control of Blood Clots
The mechanism that prevents hemorrhage can also cause internal catastrophes. New agents and tests show promise of forestalling them
The Structure of the Nucleus
The electrons in an atom tend to occupy distinct shells. What about particles in the nucleus? The "magic numbers" of the isotope chart suggest that they also have a shell arrangement
Chromatography
Some 50 years ago a Russian botanist devised a way of separating the pigments of a green leaf. Now the method has been developed to fractionate a host of mixtures of subtly different substances
The Horn of the Unicorn
The unicorn is legendary, but the horn is not. Although an early naturalist discovered the animal from which it came, modern biologists still find it a puzzling problem
Fertilization in Mammals
The union of the mammalian sperm and egg is a delicate process, yet it can be manipulated by experimental techniques. In some animals the egg alone can be artificially stimulated to grow into an offspring
Color Blindness
Because the visual defect is relatively commonplace, its mythology has a surprising vitality. The psychologist has worked diligently to separate its facts from its fictions
Warm Clothes
What fabrics or combinations of fabrics best insulate the body against the loss of heat? An account of an unusual study that produced some objective and practical answers to this question
Departments
50 and 100 Years Ago: March 1951
Science and the Citizen: March 1951
- Letters
Letters to the Editors, March 1951
- Recommended
Books
- Amateur Scientist
The Amateur Astronomer
- Departments
Bibliography