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On the Cover

September-October 2001 Volume 89, Number 5

In the early spring of 1991, a volcanic eruption 2,500 meters below the ocean surface on the East Pacific Rise destroyed a thriving community of organisms living around hydrothermal vents. Investigators aboard the deep submersible Alvin were fortunate enough to be on the scene at Nine North (named for the latitude) within days of the eruption. ...


FEATURE ARTICLES

The Shape of the Universe: Ten Possibilities *

Colin C. Adams, Joey Shapiro

Recent experimental evidence has hinted that the shape of the universe may be found among the ten orientable Euclidean 3-manifolds


An Argument for the Cometary Origin of the Biosphere *

Armand Delsemme

The evidence suggests that a rain of comets brought the Earth its water, its organic molecules and its atmosphere—key ingredients for life's beginnings


Pathogens, Host-Cell Invasion and Disease

Erich Gulbins, Florian Lang

Invading pathogens can co-opt even the cells of the immune system. New anti-infective drugs may arise from an understanding of this chemical warfare


Life After Death in the Deep Sea *

Richard Lutz, Timothy Shank, Robert Evans

Following immolation by volcanic eruption, the community around a hydrothermal vent recovers spectacularly


Microspheres, Photonic Atoms and the Physics of Nothing *

Stephen Arnold

Light can become trapped within tiny, transparent spheres. The surprising properties that result may turn "microsphere photonics" into an important new technology


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

Life on the Edge

Carl Anderson

A review of Signs of Life: How Complexity Pervades Biology, by Ricard Solé and Brian Goodwin

See all book reviews for this issue.


DEPARTMENTS

COMPUTING SCIENCE

The Computer and the Dynamo

Brian Hayes

How much power do the world's computers consume?

MARGINALIA

Harvard in Peru III

J. Donald Fernie

The last days of Harvard's 19th-century South American observatory

ENGINEERING

Millennium Legacies *

Henry Petroski

Great Britain's Millennium Project and the engineering feats it entailed

FROM THE PRESIDENT


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