Vitruvius Pollio, I dieci libri dell?architettura, 1567

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    <archimedes>
      <text>
        <body>
          <chap>
            <subchap1>
              <subchap2>
                <pb pagenum="480" xlink:href="045/01/494.jpg"/>
                <p type="head">
                  <s id="s.008614">
                    <emph type="italics"/>
                  La peror atione di tutta l'opera. </s>
                  <s id="s.008615">Cap. XXII.
                    <emph.end type="italics"/>
                  </s>
                </p>
                <p type="main">
                  <s id="s.008616">IO ho eſplicato quanto mi pareua conueniente de gli Scorpioni, & delle Cata
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                  pulte, & delle Balliſte, & parimente delle Teſtuggini, & delle Torri, & da
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                  chi ſono ſtate ritrouate, & in che modo far ſi doueſtero. </s>
                  <s id="s.008617">Ma niuna neceſsità
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                  mi ha conſtretto a ſcriuere delle ſcale, & de i Carcheſi, & di quelle coſe, le ra­
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                  gioni delle quali debili ſono, & di poca fattura: perche i ſoldati fanno da ſe queſte coſe:
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                  nè le iſteſſe in ogni luogo, nè con le medeſime ragioni ci ſerueno, perche è differente una
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                  difeſa dall'altra, & ancho la gagliardezza delle nationi: perche con altra ragione ſi deono
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                  apparecchiare le machinationi contra gli audaci, & temerari, con altra contra i diligenti, &
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                  ſpauentati, però ſe alcuno uorrà attendere alle preſcritte coſe, ſciegliendo dalla uarietà
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                  di quelle, & riducendole in una preparatione conferendole inſieme, non hauerà biſogno
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                  d'aiuti, ma potrà sbrigarſi in ogni occorrenza con quelle ragioni, & in que luoghi, che
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                  ſarà bono ſenza hauerne dubitatione alcuna. </s>
                  <s id="s.008618">Ma delle machine da difeſa' non ſe ne de­
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                  ue parlare, perche i nemici non apparechiano l'offeſe ſecondo i noſtri ſcritti, ma ſpeſſo
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                  le loro machinationi alla ſprouiſta ſenza machina con preſti conſigli ſono ſottoſopra get­
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                  tati: il che eſſer auuenuto a i Rhodiani ſi dice. </s>
                  <s id="s.008619">Diogeneto fu Architetto Rhodiano, al
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                  quale ogni anno del publico ſi daua una certa prouiſione per l'arte ſua. </s>
                  <s id="s.008620">al coſtui tempo eſ­
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                  ſendo di Arado uenuto a Rhodi un certo Architetto detto Callia, fece un'alta torre, &
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                  ci dette una moſtra di muraglia, & ſopra quella fece una machina in un Carcheſio, che ſi
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                  uolgeua, con la quale egli preſe una machina detta Helepoli dal prender delle città, che
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                  ſi auuicinaua alla muraglia, & la traportò dentro le mura. </s>
                  <s id="s.008621">Moſsi i Rhodiani da tale eſſem
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                  pio merauiglioſi leuarono la prouiſione annale a Diogeneto, & la diedero a Callia. fra
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                  queſto mezo Demetrio Rè, che per la oſtinatione dell'animo era detto deſtruttore delle
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                  città, apparecchiando la guerra contra Rhodi menò ſeco Epimacho Athenieſe nobile Ar­
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                  chitetto. </s>
                  <s id="s.008622">coſtui fece fare una torre di grandiſsima ſpeſa con induſtria & fatica alta piedi
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                  cento & uenticinque, larga ſeſſanta & poi quella confermò con ſilicij, & corami crudi di
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                  modo, che reggeua ad un colpo di pietra di trecento & ſeſſanta libre tratta da una Bali­
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                  ſta, & quella machina era di peſo, di libre trecento & ſeſſanta mila. </s>
                  <s id="s.008623">Ma eſſendo pregato
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                  Callia da Rhodiani, che egli contra quella torre apparecchiaſſe una machina, & quella ti­
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                  raſſe dentro le mura, come promeſſo haueua, egli negò di poter cio fare, perche non ſi
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                  puo fare ogni coſa con l'iſteſſe ragioni. </s>
                  <s id="s.008624">percioche ſono alcune coſe, che rieſceno tanto in
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                  modelli piccioli, quanto in forme grandi, altre non poſſono hauer modelli, ma da ſe ſi
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                  fanno, altre ancho a i modelli s'aſsimigliano, ma quando ſi fanno maggiori non rieſceno,
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                  come da quello, che io dirò, ſi puo bene auuertire. </s>
                  <s id="s.008625">Egli ſi fora con una triuella, & ſi fa
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                  un foro di mezo dito, d'un dito, & d'un dito & mezo, il che ſe con la iſteſſa ragione far
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                  uorremo d'un palmo, non ſi puo, ma di mezo piede del tutto non ſi deue penſare: coſi a
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                  queſta ſimiglianza ſi puo far alcuna coſa in una forma non molto grande, preſa da un pic­
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                  ciolo modello, il che all'iſteſſo modo in molto maggior grandezza non ſi puo conſegui­
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                  re. </s>
                  <s id="s.008626">Queſte coſe eſſendo ſtate auuertite da Rhodiani, quelli che con la ingiuria hauean
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                  ancho fatto oltraggio a Diogeneto, poi che uidero il nemico ſdegnato & oſtinato, & che
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                  la machina era per eſpugnar la città, temendo il pericolo della ſeruitu, & uedendo, che
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                  non ſi attendeua altro ſe non che la città fuſſe roinata, ſi humiliarono pregando Diogene
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                  to che in quel caſo aiutaſſe la patria. </s>
                  <s id="s.008627">Coſtui da prima negò di uolerlo fare, ma poi che le
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                  Vergini ingenue, & nobili, & i giouanetti con i Sacerdoti uennero a pregare, allhora
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                  egli promiſe con queſte conditioni, che ſe egli prendeſſe quella machina, fuſſe ſua. </s>
                  <s id="s.008628">Con-</s>
                </p>
              </subchap2>
            </subchap1>
          </chap>
        </body>
      </text>
    </archimedes>
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