Zanotti, Francesco Maria, Della forza de' corpi che chiamano viva libri tre, 1752

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            <s xml:id="echoid-s902" xml:space="preserve">
              <pb o="63" file="0087" n="87" rhead="LIBRO I."/>
            Si; </s>
            <s xml:id="echoid-s903" xml:space="preserve">riſpoſi, lo ſpazio è proporzionale al quadra-
              <lb/>
            to della velocità, ſe i corpi, che noi paragonia-
              <lb/>
            mo, ſieno gravi dello ſteſso genere di gravità,
              <lb/>
            come ſe ſieno due corpi terreſtri, che ſagliano
              <lb/>
            all’ insù; </s>
            <s xml:id="echoid-s904" xml:space="preserve">i quali veramente ſcorreranno ſpazj pro-
              <lb/>
            porzionali ai quadrati di quelle velocità, con
              <lb/>
            cui cominciarono a ſalire. </s>
            <s xml:id="echoid-s905" xml:space="preserve">Non così, ſe foſser
              <lb/>
            diverſi i generi delle gravità; </s>
            <s xml:id="echoid-s906" xml:space="preserve">come ſe l’ un cor-
              <lb/>
            po foſse terreſtre, e ſaliſse all’ insù qui in terra,
              <lb/>
            l’ altro foſſe lunare, e ſaliſse all’ in sù nella lu-
              <lb/>
            na; </s>
            <s xml:id="echoid-s907" xml:space="preserve">perchè voi troverete, che il corpo, che ſale
              <lb/>
            in sù nella luna, avendo ricevuto
              <unsure/>
            da principio
              <lb/>
            una certa velocità, ſcorre uno ſpazio aſsai mag-
              <lb/>
            giore, che non ſcorrerebbe qui in terra, aven-
              <lb/>
            do ricevuto la velocità medeſima; </s>
            <s xml:id="echoid-s908" xml:space="preserve">laonde para-
              <lb/>
            gonando la falita del corpo terreſtre con la ſali-
              <lb/>
            ta del lunare, ſi troverà altra eſsere la proporzio-
              <lb/>
            ne degli ſpazj, altra quella dei quadrati delle ve-
              <lb/>
            locità. </s>
            <s xml:id="echoid-s909" xml:space="preserve">Egli è male, diſse allora il Signor Marche-
              <lb/>
            ſe, che per trovar queſto paragone, biſogni andar
              <lb/>
            nella luna. </s>
            <s xml:id="echoid-s910" xml:space="preserve">Potrebbe ritrovarſi lo ſteſso, riſpoſi io,
              <lb/>
            anche quì in terra, chi voleſse ſeguir piuttoſto
              <lb/>
            la verità, che le ipoteſi. </s>
            <s xml:id="echoid-s911" xml:space="preserve">Perchè voi dovete ſape-
              <lb/>
            re, che ſecondo le eſperienze di molti graviſſi-
              <lb/>
            mi, e diligentiſſimi fiſici, gl’ iſteſſi corpi non
              <lb/>
            hanno già la ſteſsa gravità per tutta la terra, ove
              <lb/>
            che ſieno; </s>
            <s xml:id="echoid-s912" xml:space="preserve">ma più ſi ſcoſtano dall’ equatore, e
              <lb/>
            più l’ hanno grande; </s>
            <s xml:id="echoid-s913" xml:space="preserve">per la qual coſa ſe due cor-
              <lb/>
            pi ſagliono all’ insù, l’ uno più lontano all’ e-
              <lb/>
            quatore, e l’ altro meno, non ſarà già vero, </s>
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