Brasch arno (1 Ergebnisse)

232 x 157 mm. 8vo. Pages 10-37. [Entire volume: vii, [1 blank], 832 pp.] 14 figs. Navy cloth, gilt spine; lightly rubbed, spine with two small gouges. Blind-stamp of the Carnegie Institution of Washington, Mount Wilson Observatory. Very good. FIRST EDITION of this report on a project begun in 1927 at the Physikalisches Institut der Universitat Berlin of using atmospheric electricity as a high voltage source. This was at the beginning of the efforts to create high voltage sources. The photographs of the electrical equipment in this article are quite remarkable; in one photograph a man is dwarfed by the collecting equipment suspended high between two mountain peaks. Pais, Inward bound, p. 406.…