Introductory material
Reading edition
U. S. Energy Research and Development Administration Office of Public Affairs Washington, D.C. 20545
Library of Congress Catalog Card Number: 79-182556 1972
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A 19th century photograph restored by neutron activation. This picture, which is in the collection of the Smithsonian Institution, was exposed to neutrons in a nuclear reactor and then placed in contact with modern photographic film. The original, which had been taken by William Henry Fox Talbot who began his career in 1834, is badly faded.
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