Author: RIGHI, A.- Radiation.- Electricity
Title: Sui fenomeni elettrici provocati dalla radiazioni. Memoria del Prof. Augusto Righi.
Description: Bologna, Tipografia Gamberini E Parmeggiani, 1888. Sm folio. W. 1 full page lith. pl. ['A.Righi, dis. E.Contoli, inc. Stab. lit.o G.Wenk e Figli --Bologna']. Original brown-grey pr.wr. spine chipped and some paper along upper and lower outer hinge missing.). [1-5 in 4s, 6 in 2]. (43, I (blank) pp.). (Uncut; unopened.).(Lower printed covers w. survey of Righi's work from 1872-1888). Damage due to water vague on upper cover, more visible on lower cover. Large watersp. in pp. 43/44 and on the [only] plate at the end.). Pogg. IV, p.1251: DSB vol. XI, p.460:'... Righi also began studying the photoelectric effect, inspired by Hertz's casual observation (1887) that light that is rich in high frequency radiation is conducive to a discharge between two electrodes. In a preliminary note of March 1888, Righi demonstrated that when two electrodes are exposed to radiation, rich in ultraviolet rays, they act like a voltaic couple, and he called this phenomenon the photoelectric effect. He also described the connections of series of multiple couples forming a photoelectric battery, pointing out that the maximum effect is obtained with selenium. Wilhelm Hallwachs had published a memoir on this subject less than two months earlier and is credited with priority of discovery, although he had not clarified the pehenomenon so completely.'

Keywords: electric current electriciteit einstein history physics photoelectricity waterschade veilen Doos61