منابع مشابه
Atomic Energy in Medicine
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With alternate, sustainable, natural sources of energy being sought after, there is new interest in energy from radioactivity, including natural and waste radioactive materials. A study of various atomic batteries is presented with perspectives of development and comparisons of performance parameters and cost. We discuss radioisotope thermal generators, indirect conversion batteries, direct con...
متن کاملSafety criteria in atomic energy.
The Problem The previous conference of this society dealt with the concept of tolerance levels in industrial activities. Today's conference has shown the importance of this concept in a new industry-that of atomic energy. The industry has an unfortunate history arising from its war-like introduction at Nagasaki and Hiroshima, and this has led to a considerable amount of confused thinking. Whene...
متن کاملAtomic Energy for Military Purposes
12.1. The entire purpose of the work described in the preceding chapters was to explore the possibility of creating atomic bombs and to produce the concentrated fissionable materials which would be required in such bombs. In the present chapter, the last stage of the work will be described the development at Los Alamos of the atomic bomb itself. As in other parts of the project, there are two p...
متن کاملEnergy dissipation in atomic force microscopy and atomic loss processes.
Atomic scale dissipation is of great interest in nanomechanics and atomic manipulation. We present dissipation measurements with a linearized, ultra-small amplitude atomic force microscope which is capable of measuring dissipation at chosen, fixed separations. We show that the dynamic dissipation in the noncontact regime is of the order of a few 10-100 meV per cycle. This dissipation is likely ...
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ژورنال
عنوان ژورنال: Nature
سال: 1948
ISSN: 0028-0836,1476-4687
DOI: 10.1038/162239b0