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LIFE.com: Dumb Inventions

Hubbard Electrometer, 1968

American science fiction writer and founder of the Church of Scientology L. Ron Hubbard uses his Hubbard Electrometer to determine whether tomatoes experience pain, 1968. His work led him to the conclusion that tomatoes "scream when sliced." (Evening Standard/Getty Images/LIFE.com)
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