Neutron stars, black holes and binary x-ray sources. Offprint

1974. Ruffini, Remo (1942- ). Neutron stars, black holes and binary x-ray sources. Offprint from Proc. 16th Solvay Conference on Physics . . . Astrophysics and Gravitation (1974). 349-424pp. 240 x 150 mm. Original printed wrappers, spine faded. Fine. First Separate Edition. In the early 1970s, Ruffini was instrumental in showing that "black holes are not just energy sinks, but can also represent the largest energy sources in the universe, each one totaling up to 50% of the mass energy of an electromagnetic black hole." Ruffini concludes the present paper with the statement that "the moment of gravitational collapse appears since now to be the most energetic process occurring inside a galaxy second in the entire universe to the formation of the Universe itself" (p. 418). Ruffini is now chair of theoretical physics at the University of Rome.