. Chambers's encyclopedia; a dictionary of universal knowledge for the people. Bishop Wilkinss Second Form. same as that of gravitation, and what is impossiblewith the one, must be equally so with the good illustration of this is Addeleys PerpetualMotion, represented in the annexed sketch. Thespokes projecting from the wheel are magnets,whose south poles are all turned from the are attracted by the north poles (N), and. Addeleys Perpetual Motion. repelled by the south poles (S) of four fixed mag-nets ; and blocks of ivood (A) are interposed, toprevent magnetic action where
. Chambers's encyclopedia; a dictionary of universal knowledge for the people. Bishop Wilkinss Second Form. same as that of gravitation, and what is impossiblewith the one, must be equally so with the good illustration of this is Addeleys PerpetualMotion, represented in the annexed sketch. Thespokes projecting from the wheel are magnets,whose south poles are all turned from the are attracted by the north poles (N), and. Addeleys Perpetual Motion. repelled by the south poles (S) of four fixed mag-nets ; and blocks of ivood (A) are interposed, toprevent magnetic action where it would tend to stopthe machine ! If it were possible to 11 nd a sub-stance which would deal with gravitation or mag-netism as an opac[ue body does with liglit (casting ashadow), the perj^etual motion would be obtainedwith the greatest ease. It Avould be tedious and unprofitable to go throughthe various physical forces, shewing how a miscon-ception of their laws has led to hundreds of patentedschemes for the ])roduction of perpetiuil may merely hint at magneto-electric machinesturned by electro-magnetic engines, to Avliich theysupply the electric currents ; electric machines,driven by a gas-engine, the fuel for which is suppliedby the decomposition of water by the electricityproduced, &c. ; the absurdity of all of which maybe imagined from the perfectly analogous case of asteam-engine to which heat might be supposed
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