Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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MATHEMATICA. LIB. II. CAP. XVII.
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<
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9.</
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<
s
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xml:space
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pollicis; </
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<
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">applicetur embolus fundo antliæ, & </
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<
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fig. 1.</
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fundo antliæ claudatur; </
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tlia conjungatur, & </
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<
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">manubrium B emboli ſuſtineatur, non
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deſcendit antlia; </
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<
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">deſcendere enim non poteſt, niſi pondus
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ſuperet aëris preſſionem, & </
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<
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preſſio ſola ſex libras excedit.</
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<
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10.</
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<
s
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">In loco aëre vacuo ſolo pondere p, quo attritus emboli
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ſuperatur, deſcendit antlia.</
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<
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fig 1.</
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<
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11.</
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<
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quando duo ſphæræ ſegmenta H & </
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fig. 3.</
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uſque ora polita, & </
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">congruant hæ inter ſe, cerâque cir-
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cumpoſitâ aër excludatur. </
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">In ſegmento H epiſtomium da-
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tur, quo ſegmenta conjuncta antliæ pneumaticæ applican-
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tur, & </
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ta ſuſpenduntur, & </
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">ope annuli Q his pondera appendun-
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tur, quæ tabulæ T imponuntur. </
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metro trium pollicum cum ſemiſſe, pondus centum & </
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citer quadraginta librarum requiritur ut ſegmenta ſeparentur.</
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<
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12.</
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<
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tur, & </
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rint pondere exiguo P, quo ceræ cohæſio ſuperatur, ſe-
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fig. 1.</
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parantur. </
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pyxis cum coriis , quam filum æneum EF, cui pondus ap- penditur, trajicit. </
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in quo Experimentum fit, frangatur, cylindro ligneo cavo
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M hoc ſegmentum recipitur.</
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gmenta memorata ſeparanda, hæc a ſe mutuo divellun-
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tur, quando, vaſe incluſa, relicto inter ſegmenta aëre
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in ſtatu aëris externi, & </
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<
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