Wood, De Volson, 1832-1897 · New York, J. Wiley & Sons · leaf 19
or Pa, and the corresponding virtual head in terms of a column ofwater will be Pa The head in the supply chamber above the entrance to thewheel will be HYDRAULIC MOTORS. therefore, the total head above the initial element of the bucketwill be This head produces an actual pressure px at the… … which will be the theoretical pres-sure at entrance to the bucket iffriction be neglected. Representthe head lost by friction by T- l(i w which must also be overcome bythe head in the supply chamber,so that we have, by adding it tothe second member of (2) and transforming, (1 + mi) V2 = 2g]h + 2g…
Turbines
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![An illustration from Cosmographia in qvatvor libros distribvta summo ordine, miraqve facilitate, ac breuitate ad magnam Ptolemæi mathematicam constructionem, ad vniuersamque astrologiam institutens. Francisco Barocio ... avtore. Cum præfatione eiusdem autoris, in qua perfecta quidem astrologiæ diuisio, & enarratio autorum illustrium, & voluminum ab eis conscriptorum in singulis astrologiæ partibus habetur: Joannis de Sacrobosco verò 84 errores, et alij permulti suorum expositorum, & sectatorum ostenduntur. rationibusq[uam] redarguuntur. Præcesserunt etiam quædam communia mathematica, necnon arithmetica, & geometrica principia, nonnullæq[uam] propositiones, de quibus in toto opere sæpe fit mentio: ac demum locupletissimus index eorum, quæ ipsa Cosmographia continentur .. (1585)](https://img.insideoutlibrary.com/img/200/ia-cosmographiainqv00baro-448-118.webp)
