Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 89
most effective water wheel thathas yet been devised. In some well conducted experimentsat Lowell, Mass., it utilized about ninety per cent, of thepower of the water. Of course, in practical use, the wheelfalls far short of working with so small a loss as is indi-cated here, but making all due… … A tall glass cylinder nearly filledwith water V and having a stop-cock at L is floated upon the sur-face of water. So long as the stop-cock is closed, the cylinder remainsstationary: opening the stopcock,the water pours out, and the cyl-inder slowly moves away from thestream. The pressure at first…
Physics
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