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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Vicentripetâ corpus retinetur in curvâ, & </
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tur ex hac recedere. </
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partem verſus diſtenditur , & </
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<
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natur recedere, cum qua retinetur, id eſt, manum verſus
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trahitur.</
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<
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">Virium centralium maximus uſus eſt in Philoſophia Na-
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turali; </
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non omnes, circa axes rotantur.</
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<
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plicabo, hasque Experimentis confirmabo, & </
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capiti adjectis ipſas demonſtrabo.</
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<
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Experimenta peraguntur.</
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<
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">A eſt orbis ligneus diametri circiter duorum pedum cum
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ſemiſſe; </
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fig 1. & 2.</
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pſius orbis ſectionem repræſentat, g h ſectionem ſuſtentacu-
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li tornati, orbi perpendiculariter in centro adjuncti; </
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hoc ex duabus partibus ſeparatis in D, quæ junguntur qua-
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tuor cylindris ferreis tenuibus, quorum extremitates annu-
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lis ex eodem metallo cohærent.</
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drice excavatur in f g, cujus foraminis diameter eſt trium
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partium quartarum unius pollicis.</
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<
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na parte ei applicatur orbis A, ubi quadrum ſuperius pe-
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dis C excavatur, ut recipiat ſuſtentaculum orbis. </
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quadro firmiter connectitur caput ligneum F, (Fig. </
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jus angulus G, in g (fig. </
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<
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gno inſeritur & </
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">cum hoc, ope cochlearum, quales in s, s,
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delineatæ dantur, firmiter connectitur, Cum lamina R
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cohæret alia r circa verticulum mobilem, ita ut laminæ
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ambæ inter ſe recipiant ſuſtentaculum tabulæ dum ipſæ ſul-
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co c c (fig. </
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trajicit.</
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