14. The entropy-trapping machine, newest of the Los Alamos devices used in controlled thermonuclear reaction research. At left is James L. Tuck, head of the Sherwood Project at Los Alamos. In right background is John Marshall, who developed the plasma accelerating gun which forms part of the entropy trapping machine. In foreground is John E. Osher, one of two physicists in charge of this machine.

James L. Tuck, left, head of the Sherwood Project at Los Alamos, John Marshall, back right, John E. Osher, foreground, working on the new entropy-trapping equipment at the Los Alamos Scientific Lab, New Mexico