Casati, Paolo, Terra machinis mota : dissertationes geometricae, mechanicae physicae hydrostaticae
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              communi ponderaueris idem vas plenum̨
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                <expan abbr="aẽre">aëre</expan>
              ignito, ponderum differentia non eſt
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              pondus aëris communis æolipilam implen­
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              tis. </s>
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              <s>Exemplo rem declaro: & accipio illud
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              idem vas cupreum AR, de quo antea dixi­
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              mus, quod cum in aëre ſit lib. 100, intrà
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              aquam plenum aquâ eſſet lib (88 52/71), ſed intrà
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              aquam plenum aëre ſolùm eſſet lib. 20; vn­
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              de intulimus aquæ vas implentis pondus iņ
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              aëre eſſe lib. (68 52/71). Ponamus ſacoma eſſę
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              ferreum, & illud pariter intrà aquam exiſte­
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              re. </s>
              <s>Quoniam igitur ferrum 36 2/3 in aërę,
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              æquiponderat ferro 42 in aquâ, ferrum (88 52/71)
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              in aëre, æquiponderabit ferro (101 499/781) in aquâ;
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              & hoc faciet æquilibrium cum vaſe cupreo
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              pleno aquâ. </s>
              <s>Item quia ferrum 36 2/3 in aëre
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              æquiponderat ferro 42 in aquâ, ferrum 20
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              in aëre æquiponderabit ferro (22 10/11) in aquâ; &
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              hoc conſtituet æquilibrium cum vaſe cupreo
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              pleno aëre intrà aquam. </s>
              <s>Iam ſumo diffe­
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              rentiam inter duo hæc ſacomata, quæ ſunt
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              vt (101 499/781) ad (22 10/11), & eſt differentia lib. (78 580/781);
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              quod ſanè non eſt pondus aquæ vaſis capa­
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              citatem implentis, ſi illa in aëre ponderetur,
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              ſed eſt multò maius. </s>
              <s>Pro diuersâ autem̨
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              materiâ ſiue plumbeâ, ſiue æreâ, ſiue argen­</s>
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