Dick's Works. --

Dick's Works. --

4.11 - 1251 ratings - Source

The electric and galvanic powers have been lately employed in transmitting telegraphic signals through wires to any assignable distance. ... that of causing the galvanic current to deflect a needle poised on a centre; and, by certain arrangements, the needle is made to point ... 1839, the wires of the electric telegraph were carried to Drayton, a distance of fifteen miles from London and the experiment wasanbsp;...

Title:Dick's Works. --
Author:Thomas Dick
Publisher: - 1884


You Must CONTINUE and create a free account to access unlimited downloads & streaming