U.S. Economic Growth
It can be enhanced by improving workers' skills, supporting research and development and encouraging investment in capital that applies technological innovations
Features
"Snurps"
The name stands for small nuclear ribonucleoproteins, particles that help to remove meaningless Hintrons" from the messages issued by a cell's genes. Without them cellular activity would grind to a halt...
Particle Accelerators Test Cosmological Theory
Is there a limit to the number of families of elementary particles? Debris from the big-bang origin of the universe suggests there is, and accelerators are reaching the energies required to confirm the limit...
Perovskites
Many of the new high-temperature superconductors belong to a family of ceramics called perovskites. The adaptable perovskite structure gives rise to materials that have a wide array of electrical properties...
Bacteria as Multicellular Organisms
They differentiate into various cell types and form highly regular colonies that appear to be gUided by sophisticated temporal and spatial control systems
Polynyas in the Southern Ocean
They are vast gaps in the sea ice around Antarctica. By exposing enormous areas of seawater to the frigid air, they help to drive the global heat engine that couples the ocean and the atmosphere...
The Neurobiology of Feeding in Leeches
A single neurotransmitter, serotonin, orchestrates feeding behavior in the medicinal leech. The discovery may illuminate how neurochemicals control behavior in other animals
Early Iron Smelting in Central Africa
More than 2,500 years ago the people near Lake Victoria began smelting iron in tall furnaces that produced a remarkable heat. The authors unravel the workings of this ancient technology
Departments
50 and 100 Years Ago: June 1988
Earning its Wings
Yucca Mountain, Nevada
"Slickums"
Secret Science
Ice Storm
Roll Over, Wolfgang?
Earlier Americans
Quantum Holonomy
Compound Compound Eye
Love on the Fly
For the Birds
Bethesda Brain Drain
Nature, Nurture and Death
Vector Analysis
Richard P. Feynman 1918-1988
Rx: Art
Making Mice
TRON Takes Hold
Cold Start
Bottled Water?
- Letters
Letters to the Editors, June 1988
- Recommended
Books, June 1988
- Amateur Scientist
The Amateur Scientist, June 1988
- Departments
Computer Recreations, June 1988
