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HEINRICH RUDOLF HERTZ (1857-1894)
Untersuchungen ueber die Ausbreitung der elektrischen Kraft. Leipzig: J.A. Barth, 1892. 8° (219 x 142mm). Diagrams. (Title slightly loose, occasional very faint spotting.) Slightly later leather-backed green cloth (spine lightly rubbed).
FIRST COLLECTED EDITION of Hertz's important series of papers on electromagnetic waves, originally published from 1887 through 1890, mostly in the Annalen der Physik und Chemie. The papers include Hertz's report of his proof that electromagnetic waves travel at the same speed as light. 'For Hertz his determination... of the velocity... was the most exciting moment in the entire sequence of experiments'. The later papers report a series of 'more qualitative experiments carried out by Hertz in 1888 on the analogy between electricity and light waves' (DSB), in which he showed that electromagnetic waves are longer than light, but like light can be refracted, reflected and polarised. 'This discovery and its demonstration led directly to radio communication, television and radar' (DSB). Dibner 71; Norman 1061; PMM 377; Waller 11374.
Untersuchungen ueber die Ausbreitung der elektrischen Kraft. Leipzig: J.A. Barth, 1892. 8° (219 x 142mm). Diagrams. (Title slightly loose, occasional very faint spotting.) Slightly later leather-backed green cloth (spine lightly rubbed).
FIRST COLLECTED EDITION of Hertz's important series of papers on electromagnetic waves, originally published from 1887 through 1890, mostly in the Annalen der Physik und Chemie. The papers include Hertz's report of his proof that electromagnetic waves travel at the same speed as light. 'For Hertz his determination... of the velocity... was the most exciting moment in the entire sequence of experiments'. The later papers report a series of 'more qualitative experiments carried out by Hertz in 1888 on the analogy between electricity and light waves' (DSB), in which he showed that electromagnetic waves are longer than light, but like light can be refracted, reflected and polarised. 'This discovery and its demonstration led directly to radio communication, television and radar' (DSB). Dibner 71; Norman 1061; PMM 377; Waller 11374.