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Features

The Surface of Venus

Razor-sharp images of the earth's near twin reveal a mix of familiar and perplexing geologic features

By R. Stephen Saunders

The Legacy of Gestalt Psychology

Since its inception early in this century, Gestalt theory has made significant contributions to the study of perception, learning and social psychology. These contributions remain influential today

By Irvin Rock and Stephen Palmer

The Birth of Molecules

In less than a trillionth of a second, atoms can collide, interact and give birth to molecules. With lasers and molecular beams, it is now possible to witness the motions of molecules as one substance changes to another

By Ahmed H. Zewail

How Cells Maintain Stability

A member of the U.S.S.R. Academy of Sciences shares his model of how cells recover from blows to their protein-making machinery

By Igor N. Todorov

Frozen and Alive

A variety of animals freeze solid during the winter months and thaw in the spring. This natural ability to survive freezing may yield clues to the cryopreservation of human tissue

By Kenneth B. Storey and Janet M. Storey

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