| http://www.w3.org/ns/prov#value | - This torpedo was, by the effect of a bridle anchored in such a manner as to present the surface, by which it was supported, on an inclined plane, to the resistance of the tide; so that the action of the tide served to propel it upwards: and to prevent its being thus propelled beyond a certain distance from the bottom, a weight was attached to its lower extremity, by means of a rope of corresponden
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