The magnetic detector (2 Ergebnisse)

(London, Harrison and Sons, 1897). 4to. No wrappers as extracted from "Philosophical Transactions" Year 1897, Vol. 189 - A. Pp. 1-24., texfigs. First appearance of this importent paper, the first paper by Rutherford published in England, in which he describes his invention of the "Magnetic detector" before Marconi made use of it in his wireless telegraphy across the Atlantic in 1901.On his arrival at Cambridge (in 1895) his talents were quickly recognized by Professor Thomson. During his first spell at the Cavendish Laboratory, he invented the detector for electromagnetic waves, an essential feature being an ingenious magnetizing coil containing tiny bundles of magnetized iron wire. The detector made it possible to send wireless signals. …

(London, Taylor and Francis, 1902). No wrappers, as extracted from "Proceedings of the Royal Society of London.", Vol. LXX. Pp. 341-344 a. pp. 344-347. First printing of these two importent papers on wireless telegraphy, describing the inventions which made it possible to make the first wireless transmissions across the Atlantic in 1901. Maconi's apparatus was built on a magnetic detector invented by Rutherford, and was called Marconi's "Maggie". A powerfull transmitter was built at Poldu, Cornwall, England, and a large receiving antenna placed at Cape Cod, Massachusetts. Marconi succeeded to receive (on Dec. 12) three code dots, signifying the letter "S". "Already well known, Marconi, et twenty-seven, became world famous overnight."(DSB).Marconi and K.F. Brown were jointly awarded the Nobel Price in 1909 "in recognition of their services in the development of wireless telegraphy.".…