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RE: Nuclear Isomer Decay: A Possibility for Breakthrough Space



	Gamma rays have a momentum = gamma ray energy/ velocity of light,
or hv/c where v is the Greek letter nu.

Bernard L. Cohen
Physics Dept.
University of Pittsburgh
Pittsburgh, PA 15260
Tel: (412)624-9245
Fax: (412)624-9163
e-mail: blc+@pitt.edu


On Wed, 31 Mar 1999, Migliore, Charles W wrote:

> I thought gammas had no mass..... how can there be a recoil momentum?

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