Solar Device Produces Electricity -- G.S. Fuller, a chemist; D.M. Chapin, an electrical engineer, and G.L. Pearson, physicist, left to right operate record player with their new invention - a sunshine battery that produces electricity - during demonstration at Bell Telephone Laboratories in Murray Hill, N.J. The solar battery is composed of strips of specially-prepared silicon that can convert sunlight directly into electricity. They use here an electric light in place of the sun. April 25, 1954. (Photo by AP Wirephoto).