On the Magnet, by William Gilbert

Chap. xxi.

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If Paper or any other Medium be interposed, an armed loadstone raises no more than an unarmed one.

O bservation has shown above that an armed loadstone does not attract at a greater distance than an unarmed one; yet raises iron in greater quantity, if it is joined to and made continuous with the iron. But if Paper be placed between, that intimate coh├Žsion of the metal is hindered, nor are the metals cemented together at the same time by the operation of the magnet.

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Last updated Friday, March 14, 2014 at 22:17