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Moving the Center of Mass

Published online by Cambridge University Press:  29 November 2013

E.N. Kaufmann

Abstract

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Type
Article Commentary
Information
MRS Bulletin , Volume 24 , Issue 4 , April 1999 , pp. 56
Copyright
Copyright © Materials Research Society 1999

References

* This is no small effect! One 14.4 keV gamma-ray emitted by 57 Co from a 1 gram Fe chunk imparts a velocity to the chunk of 7.7 × 10−21 cm/s or roughly 2.4 Ångstroms/Century.

† Don't be concerned if the absorber is clamped to something, because then the whole building or planet will move and that only slows matters by a few more Orders of magnitude.

‡ Relative Sociological Effectiveness (RSE) is a measure of the capacity of specific ionizing radiation to produce a specific sociological effect expressed relative to a reference radiation such as one Standard medical x-ray exposure. There is a theoretically unjustifiable empirical correlation with the ratio of the mass media absorption coefficient to the attempt frequency (decay rate) of the source.