found to be very remarkable ; it decomposed water,oxides, acids, and all salts. The chief merit of Voltasdiscovery was that it demonstrated the fact that theprinciple of the phenomena observed by Galvani was inthe metals themselves, and not in the nerves of the animal.In short, the cause of the… … INVENTION AND DISCOVERT. 161 THE PIO^■EERS OF STEAM NAVIGATION. The idea of moving a vessel in.the water by means ofpaddle-wheels, appears to be of great antiquity. Theboats b which the Roman army under ClaudiusCodex was transported into Sicily were propelled bywlieels moved by oxen ; and in many…
Inventions
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