The Space Telescope
The largest astronomical telescope designed to operate beyond the interfering effects of the earth's atmosphere is scheduled to be transported into orbit by the U.S. space shuttle in 1985
Features
Organic Superconductors
The ability to carry an electric current without resistance had been known only in metals. Now superconductivity is seen in organic crystals made up of Rat molecules in zigzag stacks
Ultralight Airplanes
The conjunction of the hang glider and the small engine has brought into being the "air recreational vehicle." A typical craft carries 200 pounds and cruises at 50 miles per hour
Energetic Outflows from Young Stars
The radiation emitted by carbon monoxide molecules in clouds of gas and dust where new stars are forming discloses masses of gas moving outward at high velocity in opposed directions
DNA Topoisomerases
They are enzymes that convert rings of DNA from one topological form to another, linking them and even tying them in knots. The enzymes may take part in genetic replication and transcription
Aneurysms
Local perturbations of blood flow interact with the repetitive hydraulic stress generated 100,000 times a day by the heart to give rise to these balloonlike dilatations of an artery wall
The Cooperative Breeding Behavior of the Green Woodhoopoe
Among these East African birds one pair in each Bock breed while the nonbreeding adults assist in the raising of the breeders' chicks. How did this pattern of seemingly altruistic animal behavior evolve?
Renaissance Intarsia: The Art of Geometry
Intarsia is wood inlay. It flourished in the Renaissance, when it notably embodied the development of a mathematical procedure for representing the three-dimensional world in two dimensions
Departments
50 and 100 Years Ago: July 1982
Science and the Citizen, July 1982
- Letters
Letters to the Editors, July 1982
- Recommended
Books, July 1982
- Amateur Scientist
The Amateur Scientist, July 1982
- Departments
The Authors, July 1982
Metamagical Themas, July 1982
Bibliography, July 1982