Casati, Paolo, Terra machinis mota : dissertationes geometricae, mechanicae physicae hydrostaticae

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                <pb xlink:href="018/01/207.jpg" pagenum="193"/>
              ceræ leuitas ——68, vnius partis aëris leuitas
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              —— 39, & vnius partis lapidis leuitas——25:
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              quæ ſi in ſummam referantur, erit corporis
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              dati leuitas in ſtanno liquente ——144. Qua­
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              propter tam in ſtanno quàm in aëre perinde
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              ſe habet, ac ſi corpus homogeneum eſſet,
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              cuius grauitas ſpecifica eſſet 18 3/7. </s>
              <s>Sed in aquâ etiam non dubito, quin pari­
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              ter ſe habeat vt corpus, cuius grauitas ſit
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              18 3/7 ad aquam, cuius grauitas 5 1/3: erit enim
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              corporis huius ſpecifica grauitas in aquâ +
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              (13 2/21), quæ per 7 ducta dat + abſolutam corpo­
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              ris in aquâ grauitatem † 91 2/3. Hæc verò eſt
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              planè eadem, ac ſi in ſummam conferantur
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              grauitas duarum partium ferri + 73 1/3, graui­
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              tas vnius partis marmoris + 15 2/3, leuitas duą
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              rum partium ceræ——
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              2/3, leuitas vnius par­
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              tis aëris —— 5 1/3, & grauitas vnius partis lapi­
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              dis + 8 2/3: ex his enim pariter habetur graui­
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              tas in aquá + 91 2/3. In quocunque igitur me­
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              dio conſtituatur, perinde ſe habet, atque ſi
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              grauitas ſpecifica in medio leuiſsimo, iņ
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              quo nulla poſiti corporis pars leuis eſt, hoc
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              eſt in aëre, eſſet + 18 3/7. </s>
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              <s>Ex his infero terrenum globum eandem
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              ſemper habere ſpecificam grauitatem in quo­
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              cunque medio; ac proinde ſi in aquâ habet </s>
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