Skip to main content

Features

Ten Days Under the Sea

Living underwater in the world's only habitat devoted to science, six aquanauts studied juvenile corals and fought off "the funk"

By Peter J. Edmunds

Single Mothers and Welfare

For the first time since the Great Depression, large numbers of families are homeless. Recent welfare revisions will put even more women and children on the streets

By Ellen L. Bassuk, Angela Browne and John C. Buckner

Microbes Deep Inside the Earth

Recently discovered microorganisms that dwell within the earth's crust could reveal clues to the origin of life

By James K. Fredrickson and Tullis C. Onstott

Friction at the Atomic Scale

Long neglected by physicists, the study of friction's tomic-level origins, or nanotribology, indicates that the force tems from various unexpected sources, including sound energy

By Jacqueline Krim

Controlling Computers with Neural Signals

Electrical impulses from nerves and muscles can command computers directly, a method that aids people with physical disabilities

By Hugh S. Lusted and R. Benjamin Knapp

Confronting Science's Logical Limits

The mathematical models now used in many scientific fields may be fundamentally unable to answer certain questions about the real world. Yet there may be ways around these problems

By John L. Casti

Departments

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format

Back to School

Get 50% off digital subscriptions of Scientific American and Scientific American MIND!