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The Yellowstone Fires

During the summer of 1988 fires swept across much of Yellowstone National Park. Why did so many acres burn in one year? A look at the ecological history of the region provides some answers...

By Don G. Despain and William H. Romme

Double-Beta Decay

The future of fundamental theories that account for everything from the building blocks of the atom to the architecture of the cosmos hinges on studies of this rarest of all observed radioactive events...

By Michael K. Moe and Simon Peter Rosen

How T Cells see Antigen

On their own, these key actors in the immune response are blind. Other cells must break down foreign material and enfold it in the body's own proteins before displaying it to the T cells...

By Alessandro Sette, Howard M. Grey and Sren Buus

The Mammalian Choroid Plexus

It serves as a "kidney" for the brain, bathing the delicate cells in chemically stable fluid. Although the choroid plexus is small, its role in nourishing and protecting the nervous system is great...

By Reynold Spector and Conrad E. Johanson

Science in Pictures: Neptune

Voyager 2's cameras unveil a stormy world and a frozen moon molded by volcanism

By June Kinoshita

Shuttle Glow

Objects in low earth orbit travel through a tenuous and yet highly reactive atmosphere. Some materials barely survive the trip; others glow along the way

By Donald E. Hunton

The World's Oldest Road

It is the Sweet Track of England: a 6,000-year-old wooden walkway discovered in a peat bog by a laborer named Raymond Sweet. The remarkably well-preserved wood reveals much about the track's builders...

By John M. Coles

The Case for Methanol

The authors maintain that a move to pure methanol would reduce vehicular emissions of hydrocarbons and greenhouse gases and could lessen U. S. dependence on foreign energy sources...

By Charles L. Gray Jr. and Jeffrey A. Alson


  • 50 and 100 Years Ago: November 1989

  • Not so Hot

  • Ningún Nombre

  • Wires that Think

  • Hungry to Evolve?

  • Economies of Scale

  • Sweet and Sour

  • Siberian Snake

  • Hard-Pressed

  • Just a Veneer

  • Winning Candidate

  • Stillborn

  • Quantum Consciousness

  • Myocardial Infraction?

  • Polluting Rights

  • Nets Work

  • Space Available

  • Letters

    Letters to the Editors, November 1989

  • Recommended

    Books, November 1989

  • Amateur Scientist

    The Amateur Scientist, November 1989

  • Departments

    The Analytical Economist: Markets Unbound?

  • Computer Recreations, November 1989

  • Essay: How to Lose: the Story of Maglev

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