Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 225
otions also that are at the same time takingplace below the surface, in the whole mass of liquid affected. Thiscompleteness of illustration is due to the circumstance, that in theapparatus, the elementary motions are the same, essentially, as inactual waves; hence, the leading points, geometrical… … In front of a plane surface are two series of revolving arms orcranks, the length of the lower ones being half that of the upper.Two elastic wires connect the crank-pins of each series; uprightwires also connect each pair of cranks, and pass down through aplate into the base. The cranks all revolve…
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