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

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            <s xml:id="echoid-s1652" xml:space="preserve">
              <pb o="115" file="0139" n="139" rhead="LLIBRO I."/>
            ancora ſpiegato. </s>
            <s xml:id="echoid-s1653" xml:space="preserve">Chi non ſa, riſpoſi io allora,
              <lb/>
            ogni cangiamento eſſere il paſſaggio, che fa un
              <lb/>
            corpo o dalla quiete al movimento, o dal movi-
              <lb/>
            mento alla quiete, o da un movimento ad un’ al-
              <lb/>
            tro? </s>
            <s xml:id="echoid-s1654" xml:space="preserve">E queſto ſteſſo dice il Padre Riccati nel libro
              <lb/>
            ſuo alla pagina 234. </s>
            <s xml:id="echoid-s1655" xml:space="preserve">Oh! diſſe la Signora Princi-
              <lb/>
            peſſa, voi ſiete così felice di memoria, che vi ri-
              <lb/>
            cordate fin le pagine? </s>
            <s xml:id="echoid-s1656" xml:space="preserve">Io ſono tornato, diſſi, tan-
              <lb/>
            te volte ſu i medeſimi luoghi, che poſſo ricordar-
              <lb/>
            mi ancor le pagine ſenza quella tanta felicità, che
              <lb/>
            voi mi attribuite. </s>
            <s xml:id="echoid-s1657" xml:space="preserve">Ma per venire al propoſito; </s>
            <s xml:id="echoid-s1658" xml:space="preserve">ſe
              <lb/>
            ogni cangiamento, che la potenza genera nel cor-
              <lb/>
            po, ſi riduce a movimento; </s>
            <s xml:id="echoid-s1659" xml:space="preserve">e ſe la forza viva è
              <lb/>
            una virtù conſervatrice del cangiamento; </s>
            <s xml:id="echoid-s1660" xml:space="preserve">biſogne-
              <lb/>
            rà ben dire, che ella ſia una virtù conſervatrice
              <lb/>
            del movimento. </s>
            <s xml:id="echoid-s1661" xml:space="preserve">E s’ è così, ſarà anche propor-
              <lb/>
            zionale al movimento, ch’ ella conſerva; </s>
            <s xml:id="echoid-s1662" xml:space="preserve">come
              <lb/>
            dunque al quadrato della velocità? </s>
            <s xml:id="echoid-s1663" xml:space="preserve">Io non mi ri-
              <lb/>
            cordo così appunto i luoghi, diſſe allora il Signor
              <lb/>
            D. </s>
            <s xml:id="echoid-s1664" xml:space="preserve">Niccola; </s>
            <s xml:id="echoid-s1665" xml:space="preserve">ſo bene, che il Padre Riccati vuole,
              <lb/>
            che la potenza produca nel corpo non il movimen-
              <lb/>
            to, ne la velocità, ma altra coſa. </s>
            <s xml:id="echoid-s1666" xml:space="preserve">Come dite voi
              <lb/>
            dunque, che il cangiamento, che ella produce,
              <lb/>
            ſia la velocità, o il movimento? </s>
            <s xml:id="echoid-s1667" xml:space="preserve">Voi volete dire,
              <lb/>
            riſpoſi io allora, che la potenza ſecondo il P. </s>
            <s xml:id="echoid-s1668" xml:space="preserve">Ric-
              <lb/>
            cati produce immediatamente la forza viva, la
              <lb/>
            qual poi ſi trae dietro la velocità, come un ſuo
              <lb/>
            conſeguente; </s>
            <s xml:id="echoid-s1669" xml:space="preserve">il libro del Padre è tanto pieno di
              <lb/>
            ciò, che non occorre moſtrarne i luoghi. </s>
            <s xml:id="echoid-s1670" xml:space="preserve">Ma ciò
              <lb/>
            poſto, la forza viva ſarà dunque una virtù, che </s>
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