Quite the scientific instrument from the hack writer and fantasist/creator of scientology.
From the link:
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.”
In this photo: L. Ron Hubbard
Photo: Evening Standard/Getty Images
Jan 01, 1968

