The Prompt and Delayed Effects of Nuclear War
The prompt effects of nuclear weapons are the basis for the size of U.S. strategic forces. The delayed effects are equally great, ensuring that these forces remain a more than ample deterrent...
Features
The Epstein-Barr Virus
It is perhaps the commonest of all the viruses that infect human beings. It is the cause of infectious mononucleosis, and there is substantial evidence linking it with two types of human cancer...
The Central Parsec of the Galaxy
Infrared and radio observations indicate that the center of our galaxy harbors an ultracompact object, possibly a massive black hole, embedded in a dense, swirling mass of stars, gas and dust...
The Origins of the First Powered, Man-Carrying Airplane
The Wright brothers' "Flyer" of 1903 was not just a lucky effort by two bicycle mechanics from Dayton but the outcome of an intensive program of research, engineering and testing
Compartments in Animal Development
Flies, and maybe other animals too, seem to be composed of a number of compartments: homologous units within which key genes execute decisions committing several clones of cells to a line of development...
The Bag Model of Quark Confinement
Quarks appear to be real, and yet they have not been observed in isolation. One hypothesis for why they have not been is that they are confined in bags analogous to the bubbles in a liquid...
The Animals of the Burgess Shale
The fossils of a rock formation in western Canada are a rich sample of an animal community in the mid-Cambrian: Some of the animals are ancestors of those living today; others are unique and bizarre...
The Visual Perception of Motion in Depth
It now appears that information concerning motion in depth is processed in two distinct channels, which converge on a single motion-in-depth stage of the human visual perception system
Departments
50 and 100 Years Ago, July 1979
- Letters
Letters to the Editors, July 1979
- Recommended
Books, July 1979
- Mathematical Recreation
Mathematical Games
- Amateur Scientist
The Amateur Scientist, July 1979
- Science and the Citizen
Science and the Citizen, July 1979
- Departments
The Authors, July 1979
Bibliography, July 1979
