Science: Toy

A small black box rested on a stand. From its top projected a metal rod approximately twelve inches high; from its side projected a horizontal metal ring. Before the box stood a thin, blond Russian, Professor Leo Theremin of State Physical Institute of Leningrad. He placed his right hand near the upright rod; a musical note streamed from the box. He wiggled his right fingers; chords and phrases danced from the box. He moved his left hand towards the horizontal ring; the music roared deeply. He removed his left hand; the music...