Ghetaldi, Marino
,
Marini Ghetaldi Promotvs Archimedis sev de varijs corporum generibus grauitate & magnitudine comparatis
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juperat numerum 21, numero 2, erit grauitàs aquæ magnitudinem
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habentis æqualem plumbo A, 2.</
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<
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xml:space
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">Eadem via omnium liquidorum inuenitur grauitas, quan-
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do nimirum corpus ſolidum ſit grauius liquido, cuius liquidi
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quærenda eſt grauitas, hoc eſt quando corpus ſolidum demiſ-
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ſum in liquidum feratur deorſum.</
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<
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demiſſum in liquidum non deſcendat, per adiectionem alicuius
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alius ſolidi corporis liquido grauioris, quæſita liquidi grauitas
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inuenietur.</
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21. </
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tis æqualem ceræ A. </
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tur in aquam non feretur deorſum, accipiatur aliquod corpus ſolidum
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F, grauius quam aqua, ita vt corpus constans ex vtriſque corporibus
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A, F, demiſſum in aquam feratur deorſum, ſit igitur corpus F, plum-
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beum, cuius grauitas ſit v. </
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e
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rgo aquæ magnitudinem habentis æqualĕplumbo F, erit grauitas 2,</
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">Et quoniam ceræ A, grauitas est 21, plumbi vero F, 23, erit vtro-
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rumque corporum A, F, ceræ nimirum, & </
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gatur cera, & </
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habeant grauitatem 20, quoniam igitur numerus 44, ſuperat nume-
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rum 20, numero 24, erit grauitas aquæ habentis magnitudinem æqua-
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lem vtriſque corporibus ceræ & </
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tudinem habentis æqualem plumbo F, est 2, ergo reliquum quod est
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22, erit grauitas, aquæ magnitudine æqualis propoſitæ cera A.</
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gni ponderis, ita vt difficile poſſit ponderari in aqua, hac via
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inuenietur aquæ quæſita grauitas.</
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uenire grauitatem aquæ magnitudinem habentis æqualĕ plumbo A,
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accipiatur aliquod paruum plumbi corpus F, cuius grauitas ſit v. </
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dictum est, quæ ſit. </
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qui ſit 200. </
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plumbo A, erit 200.</
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teat facere, quod imperatùm eſt. </
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pus F, cuius grauitas ſit v. </
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