This booklet is one of the “Understanding the Atom” Series. Comments are invited on this booklet and others in the series; please send them to the Division of Technical Information, U. S. Atomic Energy Commission, Washington, D. C. 20545.

Published as part of the AEC’s educational assistance program, the series includes these titles:

Accelerators

Animals in Atomic Research

Atomic Fuel

Atomic Power Safety

Atoms at the Science Fair

Atoms in Agriculture

Atoms, Nature, and Man

Books on Atomic Energy for Adults and Children

Careers in Atomic Energy

Computers

Controlled Nuclear Fusion

Cryogenics, The Uncommon Cold

Direct Conversion of Energy

Fallout From Nuclear Tests

Food Preservation by Irradiation

Genetic Effects of Radiation

Index to the UAS Series

Lasers

Microstructure of Matter

Neutron Activation Analysis

Nondestructive Testing

Nuclear Clocks

Nuclear Energy for Desalting

Nuclear Power and Merchant Shipping

Nuclear Power Plants

Nuclear Propulsion for Space

Nuclear Reactors

Nuclear Terms, A Brief Glossary

Our Atomic World

Plowshare

Plutonium

Power from Radioisotopes

Power Reactors in Small Packages

Radioactive Wastes

Radioisotopes and Life Processes

Radioisotopes in Industry

Radioisotopes in Medicine

SNAP, Nuclear Space Reactors

Sources of Nuclear Fuel

Space Radiation

Spectroscopy

Synthetic Transuranium Elements

The Atom and the Ocean

The Chemistry of the Noble Gases

The Elusive Neutrino

The First Reactor

The Natural Radiation Environment

Whole Body Counters

Your Body and Radiation

A single copy of any one booklet, or of no more than three different booklets, may be obtained free by writing to:

USAEC, P. O. BOX 62, OAK RIDGE, TENNESSEE 37830

Complete sets of the series are available to school and public librarians, and to teachers who can make them available for reference or for use by groups. Requests should be made on school or library letterheads and indicate the proposed use.

Students and teachers who need other material on specific aspects of nuclear science, or references to other reading material, may also write to the Oak Ridge address. Requests should state the topic of interest exactly, and the use intended.

In all requests, include “Zip Code” in return address.

Printed in the United States of America
USAEC Division of Technical Information Extension, Oak Ridge, Tennessee