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

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              enim, dum corpus in aëre ſuſpenditur, nec
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              grauitatem addit, nec leuitatem: at ſi cor­
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              pus aquæ inſiſtat, ex aëre recipit leuita­
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              tem.
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              LXVIII
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              Pondus tel­
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              luris in a­
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              qua minue­
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              retur, ob in­
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              cluſos bali­
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              tus.
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            <figure id="id.018.01.154.1.jpg" xlink:href="018/01/154/1.jpg" number="40"/>
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              <s>Sit enim vas AR æreum
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              parallelepipedum
                <expan abbr="vacuũ">vacuum</expan>
              ,
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              cuius moles ſolida, hoc eſt
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              vnâ cum aëre incluſo, ſit
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              pedalis: expendatur iņ
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              aëre, & ſit lib. 12. Vtique
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              ſi aquæ imponatur, nata­
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              bit, cum pes cubicus a­
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              quæ ſit lib. Rom. 80; eſt
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              enim grauitas molis compoſitæ ex vaſis ma­
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              tèriâ & aëre ad grauitatem aquæ, vt;. </s>
              <s>3. ad 20.
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              At ſi ſeruata eadem materia, & æris denſi­
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              tate eâdem manente, confletur in maſſam,
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              aut ex eâ fiat vas minoris capacitatis, erit
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              quidem in aëre idem pondus, at non item
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              in aquâ. </s>
              <s>Haud diſpari ratione aër terræ vi­
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              ſceribus incluſus, qui ad extenuandum orbis
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              pondus in aëre nihil iuuat, niſi quatenus lo­
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              cum occupat cæteroqui grauioribus corpo­
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              ribus replendum, intrà aquam conferret in­
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              ſuper leuitatem, & de grauiorum corporum
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              pondere aliquid demeret. </s>
              <s>Quod ſi ignem
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              aëre multò leuiorem addamus, qui plurima
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              globi huius ſpatia implet, incrementum ac­</s>
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