Mellini, Domenico, Discorso, 1583

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="033/01/018.jpg" pagenum="18"/>
              forſe non e molto difficile. </s>
              <s>Con queſte inten
                <lb/>
              zioni, & con coſi fatti preſuppoſti proceden­
                <lb/>
              do auanti, dico che in ogni Mouimento, ò ſia na
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              turale, ò ſia artifiziale & violento, ſono da con
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              ſiderarſi cinque coſe, le quali neceſſariamente
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              concorrono à tale Mouimento, in coſifatta gui
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              ſa, che'non può ſenza alcuna di quelle farſi, &
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              ſono queſte. </s>
              <s>Il Corpo Mobile: il Motore: il
                <lb/>
              Termine d'onde'debbe cominciare: & il Ter­
                <lb/>
              mine doue è debbe fornire: dentro all'vno &
                <lb/>
              all'altro de quali, cioetra ambidue, ſi compren
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              de lo Spazio & luogo: & finalmente il Tempo,
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              il quale non è altro che la miſura del Moto ſe­
                <lb/>
              condo il prima & il poi. </s>
              <s>A volere adunque
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              che' ſi poſſa conforme al parere degl'inuento­
                <lb/>
              ri del Moto perpetuo, dare cotale Mouimento,
                <lb/>
              biſogna per via dell'Arte fabbricare vn Cor­
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              po atto ad eſſere moſſo. </s>
              <s>Et queſto biſogna
                <lb/>
              per forza & aſſoluta niciſtà, che ſia compoſto
                <lb/>
              di qualche Materia: la quale quantunque di
                <lb/>
              natura ſua ſia forte, & lungamente durabile,
                <lb/>
              ſia nondimeno ſottopoſta alla corruzzione; &
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              doppo qualche ſpazio di tempo, ò ſi corrom­
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              pa quanto alla ſua ſoſtanza in tutto: ò imparte:
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              ò almeno ſi alteri quanto alla figura & forma
                <lb/>
              accidentale: come ſarebbe per eſſempio, ſe coſi
                <lb/>
              fatto corpo fuſſe di Legno, ò di Rame
                <expan abbr="quãto">quanto</expan>
              al
                <lb/>
              la Materia: &
                <expan abbr="quãto">quanto</expan>
              alla figura, Circolare,
                <expan abbr="Triã">Triam</expan>
                <lb/>
              golare, ò Pentagono; perche' può accadere, &
                <lb/>
              ſenza dubbio accaderebbe qualche volta, che
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              conſumato & mangiato il rame & il ferro dal-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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