Casati, Paolo
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Terra machinis mota : dissertationes geometricae, mechanicae physicae hydrostaticae
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quàm 14 ad 11, minorem verò quàm 284
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ad 223: igitur vt 14 ad 11 ita 1/6 ad (11/14) maio
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rem vero; & vt 284 ad 223, ita 1/6 ad (223/1704) mi
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norem vero. </
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>Inuentæ quantitates (11/14) & (223/1704) re
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ducantur ad eandem denominationem, &
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ſunt (78744.18732/143136), differentia autem eſt 12 parti
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cularum; & ſumpto medio Arithmetico ſo
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liditas cylindruli dati eſt (18738/143136), hoc eſt (3123/23856). Si
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igitur medulla ſambucea, cuius ſoliditas eſt
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dig. (3123/23856) habet pondus gran. 3, medullą,
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cuius ſoliditas eſſet dig. (40 5/27), haberet pondus
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gran. 920. Ignis itaque leuitas in aëre ſi tan
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ta fuerit, quanta eſt medullæ ſambuceæ gra
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uitas, erit gran.——920, quorum 5425 eſt
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grauitas aquæ ſecundum molem æqualis. </
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Ergo ſi aquæ grauitas in aëre 5425 dat ignis
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in aëre leuitatem——920, aquæ grauitas 5 1/3
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dat ignis leuitatem——(4906/5425); quæ ſi addatur
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leuitati aëris in aqua——5 1/3, erit leuitas ignis
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in aquâ ſaltem——(6 258/1085). Et id quidem, Gul
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dine, tuà methodo: quanquam ægerrimè
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mihi perſuadeo tantulam leuitatem eſſe igni
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tribuendam. </
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Gal.
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<
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> Vtinam non adeò vorax ignis eſſet,
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& pateretur ſe vaſculo concludi: veſtram̨
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hanc litem momento dirimerem librà, quam
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aliquando excogitaui ad examinandam cor-</
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