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

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          <pb o="51" file="00057" n="57" rhead="SECONDO."/>
          <p>
            <s xml:id="echoid-s1741" xml:space="preserve">_Conte_. </s>
            <s xml:id="echoid-s1742" xml:space="preserve">Cancaro Signor Ofredi, V. </s>
            <s xml:id="echoid-s1743" xml:space="preserve">S. </s>
            <s xml:id="echoid-s1744" xml:space="preserve">è vn Geometra del trenta
              <lb/>
            para.</s>
            <s xml:id="echoid-s1745" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1746" xml:space="preserve">_Ofred_. </s>
            <s xml:id="echoid-s1747" xml:space="preserve">Mò che crede V. </s>
            <s xml:id="echoid-s1748" xml:space="preserve">S?</s>
            <s xml:id="echoid-s1749" xml:space="preserve">Se me ce metto, le dirò altre coſe, che
              <lb/>
            queſte. </s>
            <s xml:id="echoid-s1750" xml:space="preserve">Poiche non ſolo è vero quanto s’è detto del Priſma
              <lb/>
            ſopra il triangolo, ma anco ſopra qual ſi ſia dell’ inſinite Pa-
              <lb/>
            rabole; </s>
            <s xml:id="echoid-s1751" xml:space="preserve">Trilinei; </s>
            <s xml:id="echoid-s1752" xml:space="preserve">e per dirla in poche parole, ſopra qual ſi ſia
              <lb/>
            di quelle figure, che noi altri Geometri chiamiamo _in alte-_
              <lb/>
            _ram partem deficientes_. </s>
            <s xml:id="echoid-s1753" xml:space="preserve">Poiche tutti queſti Priſmi collocati
              <lb/>
            perpendicolari nell’acqua con vna delle ſue baſi, ſe riuolta-
              <lb/>
            ranno, a lungo andare, in taglio.</s>
            <s xml:id="echoid-s1754" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1755" xml:space="preserve">_Conte_. </s>
            <s xml:id="echoid-s1756" xml:space="preserve">Non più, non più Sig Ofredi, che ſe và troppo dietro,
              <lb/>
            mi fara vſcir di me, per il ſtupore cagionatomi dalla ſua grã
              <lb/>
            peritia. </s>
            <s xml:id="echoid-s1757" xml:space="preserve">Io andauo ruminando vn’altra coſa, che non sò s’ha-
              <lb/>
            uerà che fare con le ſue ſottigliezze.</s>
            <s xml:id="echoid-s1758" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1759" xml:space="preserve">Se non ſi è ſtabilito di ſopra aſſolutamente, che ſolidi eguali,
              <lb/>
            nel medemo tempo alzino moli del mezzo eguali, poco me.
              <lb/>
            </s>
            <s xml:id="echoid-s1760" xml:space="preserve">no; </s>
            <s xml:id="echoid-s1761" xml:space="preserve">poiche ſi è quaſi ſtabilito, che l’acque v. </s>
            <s xml:id="echoid-s1762" xml:space="preserve">g. </s>
            <s xml:id="echoid-s1763" xml:space="preserve">alzate nel
              <lb/>
            medemo tempo dal cubo, e dal parallelepido largo ad eſſo
              <lb/>
            eguale, ſiano, ſe non eguali, poco meno; </s>
            <s xml:id="echoid-s1764" xml:space="preserve">& </s>
            <s xml:id="echoid-s1765" xml:space="preserve">in conſeguenza
              <lb/>
            ſi è quaſi ſtabilito, che l’ampiezza della figura non cagioni il
              <lb/>
            tranſito di minor ſpacio, inteſo per ſpacio il ſolido, e non la
              <lb/>
            ſua lunghezza. </s>
            <s xml:id="echoid-s1766" xml:space="preserve">Hora io andauo penſando, che ſe poſſi di-
              <lb/>
            moſtrare in pratica, che l’ampiezza della figura cagioni mol-
              <lb/>
            to minor alzamento del mezzo; </s>
            <s xml:id="echoid-s1767" xml:space="preserve">poiche il medeſimo ſolido
              <lb/>
            moſso per vn verſo, e për l’altro, in tempi molto differen-
              <lb/>
            ti alzerà moli eguali del mezzo.</s>
            <s xml:id="echoid-s1768" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1769" xml:space="preserve">Prendaſi vn Cono, ò qual ſi ſia Piramide, e ſe poſi nell’ acqua
              <lb/>
            con la baíe all’ingiù, poi con la punta; </s>
            <s xml:id="echoid-s1770" xml:space="preserve">in tutti doi li modi
              <lb/>
            quando farà diſceſo per tutta la ſua lunghezza, hauerà alza-
              <lb/>
            to vna mole d’acqua ad eſſo eguale. </s>
            <s xml:id="echoid-s1771" xml:space="preserve">Hora chi non vede, che
              <lb/>
            diſcenderà la ſua altezza in tempo aſſai minore mouendoſi
              <lb/>
            con la punta all’ingiù, che con la baſe? </s>
            <s xml:id="echoid-s1772" xml:space="preserve">Adunque la larghez-
              <lb/>
            za della baſe è cagione d’alzamento di minor mole del mez
              <lb/>
            zo in tempo eguale.</s>
            <s xml:id="echoid-s1773" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s1774" xml:space="preserve">_Matem_. </s>
            <s xml:id="echoid-s1775" xml:space="preserve">V. </s>
            <s xml:id="echoid-s1776" xml:space="preserve">S. </s>
            <s xml:id="echoid-s1777" xml:space="preserve">ſe bene parla con il quaſi nulladimeno troppo s’ac-
              <lb/>
            coſta al preciſo. </s>
            <s xml:id="echoid-s1778" xml:space="preserve">Auerta adunque bene, che in niun modo
              <lb/>
            s è ſtabilito, che il mede no ſolido ridotto in mole piu larga,
              <lb/>
            alzi nel medemo tempo, tanta mole del mezzo, </s>
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