[1] A pioneer in biomechanics, McMahon studied terrestrial locomotion and the relationship of body size to shape and helped to develop devices for cardiac assistance and orthopedic biomechanics.

Subsequent tuned tracks were installed at Yale University and at Madison Square Garden in New York and are credited with improving running times as well as cutting in half the number of injuries.

Loving Little Egypt won the 1988 Rosenthal Award from the American Academy of Arts and Letters.

[1][5] Characters in McMahon's novels are also credited with inventions, for example the odor amplifier.

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