Hartland Snyder

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Hartland Sweet Snyder (* 1913 in Salt Lake City ; † 1962 ) was an American physicist.

Snyder was a PhD student of Robert Oppenheimer at Berkeley , with whom he developed an early description of the gravitational collapse into black holes in general relativity in 1939 .

The term black hole was first coined by John Archibald Wheeler in 1967 , but is already in the work of Oppenheimer and Snyder from 1939. In the summary of their work, they literally write that sufficiently heavy stars collapse after their fusion energy resources have been used up, and that this collapse will last indefinitely.

Together with M. Stanley Livingston and Ernest Courant, Snyder developed the strong focusing principle for synchrotrons in 1952 , which made it possible to hold the particle beams together and which was an important prerequisite for particle accelerators of ever higher energy. Independently of them, the concept was discovered in 1949 by Nicholas Christofilos .

From 1940 to 1947 he was at Northwestern University and from 1947 to his death in 1962 at Brookhaven National Laboratory .

Individual evidence

  1. ^ Oppenheimer, Snyder On continued gravitational attraction , Physical Review Vol. 56, 1939, p. 455.