Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 273
units of heatand work. His measurements were made upon the eleva-tion of temperature of a known mass of water when churnedbv the fall of a weight. The apparatus consisted essen-tially of a copper vessel. AB (Fig. 175). containing a paddleattached to a vertical roller. /, which was made to revolve… … Vm. 175. so that the water was prevented from revolving bodily withthe paddle. The roller / could be detached from the paddleat pleasure by removing a pin, p, and the weights wound up without agitating the water.Joules experiments extended overa number of years, and showed,when corrected as nearly…
Physics
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