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On the Cover

March-April 1998 Volume 86, Number 2

Cancer cells, such as the melanoma cells stained orange by immunofluorescence in this light micrograph, divide without the usual restraints. Tumors invade normal cells—in this case the skin's epithelial cells, whose nuclei are stained blue. Eventually, some tumor cells acquire the ability to metastasize, or spread to new organs. ...


FEATURE ARTICLES

Creationism's Geologic Time Scale

Donald Wise

Should the scientific community continue to fight rear-guard skirmishes with creationists, or insist that "young-earthers" defend their model in toto?


Transporting Water in Plants *

Martin Canny

Evaporation from the leaves pulls water to the top of a tree, but living cells make that possible by protecting the stretched water and repairing it when it breaks


Mathematics and Tensegrity *

Group and representation theory make it possible to form a complete catalogue of "strut-cable" constructions with prescribed symmetries


Is Beauty a Sign of Truth in Scientific Theories? *

James McAllister

Why are some new theories embraced as beautiful, others spurned as ugly? Progress in science may require that aesthetic ideals themselves change


Metastasis

Cornelis J. Van Noorden, Linda Meade-Tollin, Fred Bosman

The spread of cancer cells to distant sites implies a complex series of cellular abnormalities caused, in part, by genetic aberrations


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

Graphic Language

John Russ

A review of Number by Colors: A Guide to Using Color to Understand Technical Data, by Brand Fortner and Theodore E. Meyer.

See all book reviews for this issue.


FEATURE ARTICLES

COMPUTING SCIENCE

Collective Wisdom

Brian Hayes

The rise of cooperative-computing projects on the Internet

MACROSCOPE

The Biotech Future

Isaac Rabino

Survey results on recombinant DNA research

MARGINALIA

Transits, Travels and Tribulations, III

J. Donald Fernie

Two 1761 French expeditions to witness the transit of Venus

ENGINEERING

Technology and Societies *

Henry Petroski

A brief history of honor societies

SCIENCE OBSERVER

Little Robots in Space

Michael Szpir

Spacebound "satbots" prove surprisingly robust

Piles of PCs

Mike May

Clusters of PCs compete with the world's fastest machines

FROM THE PRESIDENT


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