Electrical machinery; a practical study course on installation, operation and maintenance (1921)
Annett, Fred Anzley · New York [etc.] McGraw-Hill book company · leaf 94
s, minus the friction in the connected mechanism,times the distance in feet through which they fell, wouldgive the work done on the paddle wheel P in overcoming theresistance of the water. Then by taking the temperature ofthe water before and after the experiment, the heat equiv-alent of the work… … Fig. 89.—Apparatus for determining mechanical equivalent of heat. degTee F. Joules apparatus was crude; consequently, aswould be expected, the results were not accurate. Laterexperiments have shown that the correct value is 778 footpounds. The difference between the two values is very small,when…
Electric machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
