and apparatus, (New York, D. Van Nostrand Company, $2 net.) The story of Marconi is not the only one told here. Mr. Sewall shows that others are also entitled to some credit, though he avoids all ...

and the third explaining the special appliances and systems of apparatus in use in the Marconi Company's installations. Handbook of Technical Instruction for Wireless Telegraphists. By J.

Late in the nineteenth century, Guglielmo Marconi began experimenting with electromagnetic waves to send signals. At that time, the telegraph wire was the quickest way to get messages from here to ...

Up to that time Marconi’s experiments had been conducted with considerable secrecy, although it was generally known he was dreaming of some sort of apparatus by which he could establish wireless ...