American Scientist  
The Magazine of Sigma Xi, The Scientific Research Society  
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elcome to the Web site of American Scientist, an illustrated bimonthly magazine of science and technology. Published by Sigma Xi, The Scientific Research Society, American Scientist features reviews of current research written by prominent scientists and engineers, the most comprehensive book review section of any science magazine and a handful of regular columns. We welcome you to browse sample content from our current issue and our archives—and hope you learn something new as you explore!

American Scientist cover
September-October 2001 Issue


folding cube

The Shape of the Universe: Ten Possibilities
One of ten orientable Euclidean 3-manifolds may describe the shape of the universe.
Download foldupcube_print.pdf and construct a model of a 3-Torus.

 

Pathogens, Host-Cell Invasion and Disease
Understanding how cells are co-opted is crucial to designing anti-infective drugs.

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