Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 553
mpleted these nails leap up to the magnetic pole, and group them-selves round it in the manner shown in the cut; and again, when the cur-rent is interrupted, the iron reverts to its ordinary condition, the magnetismvanishes, and the nails drop down in an instant. These effects may beproduced again… … Fig. 266.—All Electro-mamet. a bar of iron which has been bent into the form of a horse-shoe, verypowerful magnets may be produced, and enormous weights may be sup-ported by the force of the magnetic attraction so evoked. Fig. 266 repre-sents the apparatus for experiments of this kind, in which…
Inventions
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