Catalogue of Books and Papers Relating to Electricity, Magnetism, the Electric Telegraph, Etc
Francis Ronalds
Broschiertes Buch

Catalogue of Books and Papers Relating to Electricity, Magnetism, the Electric Telegraph, Etc

Including the Ronalds Library

Herausgeber: Frost, Alfred J.
Versandkostenfrei!
Versandfertig in 1-2 Wochen
69,99 €
inkl. MwSt.
PAYBACK Punkte
35 °P sammeln!
In 1816, Sir Francis Ronalds (1788-1873) became the first physicist to demonstrate the possibility of an electric telegraph. Previously, the only telegraphs were semaphores - cumbersome signal towers capable of sending only two or three words per minute. However, his idea was dismissed by the Admiralty, where senior officials deemed any new telegraphs 'unnecessary'. Although his designs were soon to be superseded by those of the more successful Samuel Morse, Ronalds' devotion to telegraphy never waned; he spent much of his life collecting books on the subject. Upon his death, his collection wa...