Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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MATHEMATICA. LIB. I. CAP. XXIV.
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tus communicationes non datur, unde etiam corpora V & </
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T æque velociter moventur & </
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<
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">A lio experimento conſtat, ita ſubitam eſſe elaſterii actio-
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nem ut vix concipiatur.</
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<
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12.</
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licum, ex duobus conſtat hemiſphæriis A & </
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<
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fig. 10.</
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quàm arctiſſimè inter ſe conjungi poſſunt.</
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<
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ex. </
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">octodecim pollicum, ut plano marmoreo cœru-
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leo, paululum madefacto, impingat; </
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ctum medium ſuperficiei in planum incurrat. </
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difficulter obtineri poteſt, ſi in eo loco majorem ha-
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beat craſſitiem hemiſphærium quâm extrema verſus. </
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furetur macula quam in marmore corpus impactu impri-
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mit.</
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altitudine globus ita, ut idem punctum ſuperficiei hemi-
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ſphærii B in planum marmoreum incurrat, quod facile fiet ſi
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hemiſphærium A alio levius fuerit: </
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actiſſime æqualis erit, & </
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<
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">Tandem in globi cavitatem inſeratur plumbi fruſtum P,
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ejuſdem ponderis cum ipſo globo, ibique firmetur; </
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eodem modo globo, & </
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erit, & </
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<
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">Dimiſſo autem ab eadem altitudine globo ſolido ex ebo-
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re, globo memorato æquali, macula major eſt, & </
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lam à qua cecidit altitudinem globus redit.</
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">In hoc experimento videmus, partes ictas hemiſphærii
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B ad figuram rediiſſe, antequam huic hemiſphærio actio
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hemiſphærii A, aut plumbi inſerti, communicari potuerit,
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licet ſatis arcte hæc corpora cohæreant.</
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