Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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PHYSICES ELEMENTA
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poribus homogeneis, in eadem ſunt ratione; </
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<
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">& </
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<
s
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xml:space
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ut pondera corporum æqualium quantum ad volumen.</
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<
s
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xml:space
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lumina eo ſunt minora quo denſitates ſunt majores, & </
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nente pondere, minuitur volumen in eadem ratione, in
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qua denſitas augetur; </
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<
s
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xml:space
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ſe ut denſitates.</
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<
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<
s
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xml:space
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">In homogeneis corporibus, ſi duæ dentur ex tribus ra-
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tionibus, ponderum, voluminum, & </
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<
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detegitur.</
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<
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xml:space
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">Pondera enim ſunt in ratione compoſita voluminum & </
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<
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xml:space
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tatum.</
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<
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xml:space
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denſitates.</
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<
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xml:space
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">Tandem denſitates ſunt directè ut pondera, & </
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volumina.</
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<
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te premitur, preſſioque hæc in ratione altitudinis fluidi ſu-
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pra ſolidum creſcit. </
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ſequitur, ac etiam directo Experimento probatur.</
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<
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1.</
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<
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">Extremitati tubi vitrei B m alligatur ſaccus coriaceus S,
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mercurio plenus, veſica etiam poteſt adhiberi; </
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fig. 3.</
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ſaccus hic aquâ, ita, ut extremitas B tubi ſupra aquam
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perveniat.</
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mercurius in tubum, ut perveniat ad m; </
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curii ſequitur proportionem altitudinis aquæ ſupra ſaccum.</
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<
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mergitur, preſſio in ſuperiorem partem a preſſione in in-
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feriorem vix differt; </
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parte quaſi æqualiter premuntur; </
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mollibus ſine figuræ mutatione, & </
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fine diſruptione, ſuſtineri poteſt.</
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<
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2.</
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<
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ſicæ aquâ repletæ includuntur, veſica exacte clauſa pyxidi
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fig 5.</
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