John D. Clark, Ph.D:
Science Fiction Technology and Ideas
John Drury Clark, Ph.D. (b. 1907 d. 1988) was an American science fiction writer, rocket fuel developer, chemist. During his last two years at Caltech his college roommate was L. Sprague de Camp.

(John Drury Clark)

Invention/Technology Source Work (Publication Date)

A single particle of antimatter - an antiproton.

Minus Planet (1937)

Atomic Drill
An atomic-powered auger, for use in drilling deep into planets and asteroids.

Minus Planet (1937)

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