Caverni, Raffaello, Storia del metodo sperimentale in Italia, 1891-1900

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb xlink:href="020/01/2859.jpg" pagenum="484"/>
            <p type="main">
              <s>
                <emph type="center"/>
              V.
                <emph.end type="center"/>
              </s>
            </p>
            <p type="main">
              <s>La storia della Cicloide, perchè troppo importante in sè stessa, e per­
                <lb/>
              chè troppo bisognosa di essere illustrata nelle sue origini, rimaste fin qui
                <lb/>
              occulte nei manoscritti; è stata in questo capitolo una assai lunga digressione
                <lb/>
              da quella via, sopra la quale siam solleciti ora di ritornare, per accennar
                <lb/>
              frettolosamente all'opera, data dai colleghi e dai discepoli del Torricelli in
                <lb/>
              promovere la Meccanica galileiana. </s>
              <s>Si disse già, infin dal principio del pre­
                <lb/>
              sente discorso, ch'erano principalmente da annoverare fra cotesti promotori
                <lb/>
              il Cavalieri, il Borelli e il Viviani, i quali tre insigni personaggi sono oramai
                <lb/>
              tante volte compariti sopra la scena, come principali attori del dramma, e i
                <lb/>
              nostri Lettori perciò gli debbono conoscere così bene, che alla tela, sopra la
                <lb/>
              quale è disegnata la loro effige, manca solamente l'essere circoscritta, e ter­
                <lb/>
              minata dalla sua propria cornice. </s>
            </p>
            <p type="main">
              <s>Il Cavalieri, avutone l'impulso dalla lettura dei dialoghi dei Due mas­
                <lb/>
              simi sistemi, esordì i suoi studi con lo
                <emph type="italics"/>
              Specchio ustorio,
                <emph.end type="italics"/>
              dimostando che,
                <lb/>
              nelle naturali scese dei gravi, gli spazi crescono come i quadrati dei tempi,
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              in un modo nuovo e affatto geometrico, come pure ei fu il primo a dimo­
                <lb/>
              strar, nella parabola de'proietti, i ludi geometrici della Natura. </s>
              <s>Galileo, o
                <lb/>
              fossero le sue espressioni sincere, o tinte della gelosa paura di un potente
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              rivale; designava per suo successore nella Scienza del moto lo stesso Cava­
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              lieri, che rispondeva nel Giugno del 1635 in questi termini, interpetrando
                <lb/>
              meglio il suo proprio genio, che le intenzioni degli altrui onorevoli inviti:
                <lb/>
                <emph type="italics"/>
              Quanto alla qualità degli studi, ai quali sia ora per applicarmi, se io
                <lb/>
              riguardo al mio gusto, mi saria piaciuto applicarmi io ancora alla dot­
                <lb/>
              trina del moto, parendomi cosa di gran momento, ed il compendio della
                <lb/>
              vera Filosofia:
                <emph.end type="italics"/>
              ma soggiunge che, per badare alla sodisfazione del luogo,
                <lb/>
              ossia della cattedra bolognese, nella quale era stato il Magini suo anteces­
                <lb/>
              sore tanto onorato, gli sarebbe convenuto piuttosto attendere a calcolare le
                <lb/>
              Effemeridi per gli anni prossimi futuri (Campori, Carteggio gal., Modena 1881).
                <lb/>
              Da un'altra lettera, scritta allo stesso Galileo pochi giorni appresso, traspa­
                <lb/>
              risce più chiaramente essere una delle principali ragioni, che lo ritengono
                <lb/>
              dal coltivare gli studi della Meccanica, quella di non far nascere nuove om­
                <lb/>
              bre di gelosia nel mal disposto animo del suo Maestro, scusandosi con lui,
                <lb/>
              un'altra volta fra le tante, del disgusto, che gli potesse ignorantemente aver
                <lb/>
              dato con l'occasione dello
                <emph type="italics"/>
              Specchio ustorio
                <emph.end type="italics"/>
              “ nel quale, prosegue a dire, ve­
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              nendomi così bene a taglio la linea descritta dal proietto per le sezioni co­
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              niche, pensando che ella non ne facesse conto più che tanto, mi presi licenza
                <lb/>
              d'inserirla in quel libro, credendo che le proposte mie, fatte in quello, che
                <lb/>
              era cosa imparata da lei, dovessero piuttosto cagionarle piacere che dispia­
                <lb/>
              cere ” (ivi, pag. </s>
              <s>442). </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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