Scientific American Magazine

What is the problem of organizing an effective civil defense against it? The last in a series of four articles on the thermonuclear weapon

The abnormal descendants of normal animals are significant experiments of nature. The geneticist studies them to learn the role of the gene in both abnormal and normal development

For centuries man has used but not understood it. Recently two theories have been put forward in order to explain its origin

The large molecules characterized by nitrogen are synonymous with life. Their structure and function are fundamental problems of chemistry

Little has been told of the small asteroid that three years ago crashed into a Siberian forest. A brief account of one of the most impressive natural events witnessed by man

One of the principal causes of sudden death, it is the culmination of slow processes in coronary artery disease

The structure of the violent atmospheric phenomenon has long been unclear. Now it is known to incorporate "cells"

An experiment now being conducted in the South will measure the practicality of harvesting the energy of coal by burning it underground instead of mining it