Hertz (Heinrich Rudolf)

Ueber sehr schnelle electrische Schwingungen (p.421-48), bound with, Nachtrag zu der Abhandlung uber sehr schelle electrische Schwingungen (p.543-4) and Ueber einen Einfluss des ultravioletten Lichtes auf die electrische Entladung (p.983-1000),

first printings, contemporary black marbled boards, red leather lettering label, removal of pre-ownership marks from title and content leaf, preserved in cloth solander box, 8vo., Annalen der Physik und Chemie, Vol. XXXI, Leipzig, Johann Ambrosius Barth, 1887

***Hertz demonstrated that electronic waves radiated in space with the speed of light. He determined these waves to be of greater length than light and that they could be deflected, refracted, and polarized. This discovery and its demonstration led directly to radio communication, television, and radar. [Dibner 71]