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Wheat

The grass that bears our daily bread is synonymous with European civilization. What is the basis of its usefulness, and what is the origin of modern wheat?

By Paul C. Mangelsdorf

The Desert Rat

A remarkable little animal can live in an environment such as Death Valley on dry food and no water at all. It is only recently that this physiological mystery has been solved

By Knut and Bodil Schmidt-Nielsen

Radar and the Weather

The ability of water drops to reflect radio signals provides a new tool with which meteorologists are extending the scope of their observations, and seeing storms in much finer detail

By Hal Foster

Leonhard Euler and the Koenigsberg Bridges

In a problem that entertained the strollers of an East Prussian city the great mathematician saw an important principle of the branch of mathematics called topology

By Leonhard Euler

Is Man Alone in Space?

He sometimes wonders if, on a planet similar to the Earth, another genus Homo has arisen. An anthropologist considers the possibility in the light of what we know of evolution

By Loren C. Eiseley

Hydrazine

This nitrogen compound was propelled out of obscurity in German rocket motors. Its highly reactive molecule, related to ammonia in makeup and origin, is the basis of a new range of chemicals

By Lawrence P. Lessing

Gamma Globulin in Polio

The field trials have most significantly shown that small amounts of antibody are sufficient to prevent the disease, a fact that enhances the prospect of a successful vaccine

By William McD. Hammon

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