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Advanced Offshore Oil Platforms

Creating structures that can withstand 100-foot waves in waters 600 feet deep calls for audacious engineering and heavy capital expense. Here four innovative offshore platforms are described...

By Fred S. Ellers

Nutrients That Modify Brain Function

They are the precursors of neurotransmitter molecules. Increasing their level in the brain amplifies signals from some nerve cells. In effect they act like drugs, and one day they may serve as drugs...

By Richard J. Wurtman

A Major Earthquake Zone on the Mississippi

Three of the strongest quakes in U.S. history were not in the West but in New Madrid, Mo. They came in 1811 and 1812, and even now the area is shaken by an average of one small quake every other day...

By Arch C. Johnston

Giant Molecular-Cloud Complexes in the Galaxy

Consisting almost entirely of hydrogen molecules, they are the most massive objects in the galaxy. They also give rise to most of the galaxy's stars. A decade ago their presence was unknown...

By Leo Blitz

The Giant Squid

This deep-sea cephalopod is so seldom seen, dead or alive, that it seems mythical. Numerous specimens have, however, been studied, and they have begun to reveal the animal's anatomy and its ecology...

By Clyde F. E. Roper and Kenneth J. Boss

Superheavy Magnetic Monopoles

Isolated north and south magnetic poles are predicted to exist but have never been observed. A new theory may explain why: such particles seem to be too massive, slow-moving and rare...

By Richard A. Carrigan Jr. and W. Peter Trower

Variations in Medical Care among Small Areas

The amount and cost of hospital treatment in a community have more to do with the number of physicians there, their medical specialties and the procedures they prefer than with the health of the residents...

By John Wennberg and Alan Gittelsohn

The Short Life of Évariste Galois

Legend has it that the young mathematician wrote down group theory the night before he was fatally shot in a duel. More careful investigation shows that Galois's remarkable ideas took somewhat longer to mature...

By Tony Rothman


  • 50 And 100 Years Ago: April 1982

  • Science And The Citizen, April 1982

  • Letters

    Letters to the Editors, April 1982

  • Recommended

    Books, April 1982

  • Amateur Scientist

    The Amateur Scientist, April 1982

  • Departments

    The Authors, April 1982

  • Metamagical Themas, April 1982

  • Bibliography, April 1982

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