The Isolator, an anti-distraction helmet invented in 1925 by science fiction pioneer Hugo Gernsback, editor of 'Science and Invention' magazine, member of The American Physical Society, and coiner of the term 'scientifiction' (Amazing Stories, 1926)
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Gernsback with his television goggles in 1965, from an exhibition in Bingen, Germany.
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I think I'd rather use the Cone of Silence, despite its many shortcomings.
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