In the transmission of the electric influence througl the wires of this or any other apparatus, distance is o no consequence as ... the answer could be transmitted from the terminus to Drayton and back in lew than two minutes. ... When a small magnetic bar is poised at the centre, so as to bo free to move u any direction, one end points towards the north polo f the earth and another towards the south. It is trueanbsp;...
|Title||:||Chambers's Information for the People|
|Author||:||William Chambers, Robert Chambers|