Angeli, Stefano degli, Della gravita' dell' aria e fluidi : esercitata principalmente nelli loro homogenei

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            <s xml:id="echoid-s3708" xml:space="preserve">_Cont._ </s>
            <s xml:id="echoid-s3709" xml:space="preserve">Sia il vaſo A B C, il quale dopò la total immerſione
              <lb/>
            preciſa non contenga altro che aria (perche ſino a queſto
              <lb/>
            ſegno ſe v entrerà acqua ſarà in ſenſibile.) </s>
            <s xml:id="echoid-s3710" xml:space="preserve">Queſti ſr para-
              <lb/>
            gona con tant’acqua quanta è tuttala ſua mole; </s>
            <s xml:id="echoid-s3711" xml:space="preserve">e nor nel
              <lb/>
            tenerlo dobbiamo ſentire tutto l’ecceſſo di queſta ſopra il
              <lb/>
            peſo del vetro, & </s>
            <s xml:id="echoid-s3712" xml:space="preserve">aria. </s>
            <s xml:id="echoid-s3713" xml:space="preserve">S’immerga di più di quello che era
              <lb/>
            prima ſecondo tutta la ſua altezza, & </s>
            <s xml:id="echoid-s3714" xml:space="preserve">in queſta immerſio-
              <lb/>
            ne maggiore ſia entrata dentro l’acqua A D E C, e tutta
              <lb/>
            laria ſi ſia riſfretta in D B E. </s>
            <s xml:id="echoid-s3715" xml:space="preserve">Dico che il vetro, e l’aria
              <lb/>
            D B E, ſara più graue in ſpecie, che il medemo vetro, & </s>
            <s xml:id="echoid-s3716" xml:space="preserve">
              <lb/>
            aria A B C. </s>
            <s xml:id="echoid-s3717" xml:space="preserve">Et auuerta V.</s>
            <s xml:id="echoid-s3718" xml:space="preserve">S. </s>
            <s xml:id="echoid-s3719" xml:space="preserve">che dico più graue in ſpecie, e
              <lb/>
            non aſſolutamente, cioè di grauita aſſoluta; </s>
            <s xml:id="echoid-s3720" xml:space="preserve">perche sò
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            anch io, che traſportato nel vacuo il vetro con l’aria con-
              <lb/>
            denſata D B E, & </s>
            <s xml:id="echoid-s3721" xml:space="preserve">il medemo vetro con l’aria naturale
              <lb/>
            A B C, che peſeriano il medemo. </s>
            <s xml:id="echoid-s3722" xml:space="preserve">Anzi che il peſare il
              <lb/>
            medemo aſſolutamenre è cagione che ſiano di differente
              <lb/>
            grauità ſpecifica, che è quella grauità, che eſercitano nel-
              <lb/>
            l’acqua. </s>
            <s xml:id="echoid-s3723" xml:space="preserve">E la ragione è queſta. </s>
            <s xml:id="echoid-s3724" xml:space="preserve">Nel primo caſo il vaſo, e
              <lb/>
            l’aria A B C, ſi paragonano con tant’acqua quanta e tutta
              <lb/>
            la loro mole, onde ſe l’acqua peſa, per eſempio, libbre 4. </s>
            <s xml:id="echoid-s3725" xml:space="preserve">& </s>
            <s xml:id="echoid-s3726" xml:space="preserve">
              <lb/>
            il vetro, & </s>
            <s xml:id="echoid-s3727" xml:space="preserve">aria libbre 1. </s>
            <s xml:id="echoid-s3728" xml:space="preserve">noinel tenerlo ſentiremo @@mpul-
              <lb/>
            ſo de libbre trè Ma ſe l’acqua entrata A D E C, peſaſſe lib-
              <lb/>
            bre 2; </s>
            <s xml:id="echoid-s3729" xml:space="preserve">l’acqua, che ſi paragoneria con il vetro, & </s>
            <s xml:id="echoid-s3730" xml:space="preserve">aria con-
              <lb/>
            denſata D B E, non ſaria piuranta quanta è tutta la mole
              <lb/>
            A B C, ma tanta ſolamente, quanto ſarebbe il vetro, & </s>
            <s xml:id="echoid-s3731" xml:space="preserve">
              <lb/>
            aria D B E; </s>
            <s xml:id="echoid-s3732" xml:space="preserve">la quale peſando libbre 2. </s>
            <s xml:id="echoid-s3733" xml:space="preserve">& </s>
            <s xml:id="echoid-s3734" xml:space="preserve">il vetro, & </s>
            <s xml:id="echoid-s3735" xml:space="preserve">aria lib
              <lb/>
            bre noi non ſentire ſſimo che l’impulſo d’vna libbra. </s>
            <s xml:id="echoid-s3736" xml:space="preserve">Ec
              <lb/>
            co adunque che il vetro, & </s>
            <s xml:id="echoid-s3737" xml:space="preserve">aria D B E, ſono più graun in
              <lb/>
            ſpecie del medemo vetro, & </s>
            <s xml:id="echoid-s3738" xml:space="preserve">aria A B C. </s>
            <s xml:id="echoid-s3739" xml:space="preserve">Non è adunque
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            vero quello che diceua V.</s>
            <s xml:id="echoid-s3740" xml:space="preserve">S. </s>
            <s xml:id="echoid-s3741" xml:space="preserve">cioè che la cagione ſia perche
              <lb/>
            l’acqua A D E C, peſi, e che ſi ponga vn’aggregato di ve-
              <lb/>
            tro, aria, & </s>
            <s xml:id="echoid-s3742" xml:space="preserve">acqua, mentre nel primo caſo ſi collocaua nel-
              <lb/>
            l’acqua vn aggregato di vetro, & </s>
            <s xml:id="echoid-s3743" xml:space="preserve">aria.</s>
            <s xml:id="echoid-s3744" xml:space="preserve"/>
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          <p>
            <s xml:id="echoid-s3745" xml:space="preserve">_Ofr._ </s>
            <s xml:id="echoid-s3746" xml:space="preserve">In queſto mio patrone conſiſte vno delli ſuoi debiti.</s>
            <s xml:id="echoid-s3747" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3748" xml:space="preserve">_Mat._ </s>
            <s xml:id="echoid-s3749" xml:space="preserve">Se bene è vero che il vetro cō l’aria D B E, ſia più graue
              <lb/>
            in ſpecie del vetro, & </s>
            <s xml:id="echoid-s3750" xml:space="preserve">aria A B C. </s>
            <s xml:id="echoid-s3751" xml:space="preserve">& </s>
            <s xml:id="echoid-s3752" xml:space="preserve">anco conceſſo che
              <lb/>
            l’aria D B E, poſſa eſſer tanto condenſata, che con il vetro
              <lb/>
            facia vna mole, e della medema grauita lpecifica </s>
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