Cardano, Girolamo, De subtilitate, 1663

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.012641">
                <pb pagenum="637" xlink:href="016/01/284.jpg"/>
              eſſe grauiorem. </s>
              <s id="s.012642">Cùm hæc proportio ſen­
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                <arrow.to.target n="marg1728"/>
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              ſim acquiratur, antequàm ſit acquiſita,
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              extento, & intento etiam brachio ad aliam
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              partem inclinatur, igitur non cadet. </s>
              <s id="s.012643">Ca­
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              dere igitur poteſt, ſi vel funis non exactè
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              extenſus fuerit, ſi membra ſtupore interim
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              tentantur: ſi corpus non intentum validè
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              contineatur: ſi pauitet, ſi delaſſetur, ſi ar­
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              te, vel vſu careat, vt tardius extendat, do­
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              nec inclinetur, vel nimis extendat, vt in
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              aduerſam eius quum timuit decidat partem:
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              omitto quòd pondera rationem certam,
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              aut ei propinquam obtinere debent, ad ſin­
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              gulorum, tum pondus, tum magnitudi­
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              nem ac etiam vires. </s>
              <s id="s.012644">Ergo ſi hæc ſex adſint,
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              in nullo eſt periculo. </s>
              <s id="s.012645">Itaque quidam puer
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              ſphæris ligneis pedibus ſuppoſitis, aliquando
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              etiam ſacco incluſus totus præter brachia,
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                <arrow.to.target n="marg1729"/>
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              ſuper funem inter cacumina turrium exten­
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              ſum maximo noſtro pro illius vita metu am­
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              bulabat. </s>
            </p>
            <p type="margin">
              <s id="s.012646">
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              Funambulo­
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              rum ratio.</s>
            </p>
            <p type="margin">
              <s id="s.012647">
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              Pericula
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              funambulo­
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              rum.</s>
            </p>
            <p type="margin">
              <s id="s.012648">
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              Funambulo­
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              rum opera
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              varia.</s>
            </p>
            <p type="main">
              <s id="s.012649">Alius etiam deſcendebat ab imo ſolo ad
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              turrim, quòd difficilius eſt, quum renes
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              in hac exercitatione multùm laborent. </s>
              <s id="s.012650">Idem
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              ſe è turri abſque ponderibus pronus per fu­
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              nem, vſque ad ſolum extentis manibus
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              demittebat: nam robur adeò manibus, &
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              brachiis conſtans erat ac firmum. </s>
              <s id="s.012651">vt illis
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              ponderum vice vteretur. </s>
              <s id="s.012652">Idem, quod mi­
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              ſerrimum eſt, funiculo ſatis tenui pede ſe
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              ſuſpendebat è fune vbi proximus maximè
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              turri erat, infame ſpectaculum atque hor­
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              rendum. </s>
              <s id="s.012653">Robore inde renum & dorſi ma­
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              nibus vinculum apprehendebat, atque ita
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              funi denuò ſe reſtituebat. </s>
              <s id="s.012654">Fingebant am­
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              bo ſe cadere præcipites, ſumma verò pedis
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              hærebant funi capite prono. </s>
              <s id="s.012655">Quantum pe­
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              dis ſummitati illius roboris ineſſe neceſſa­
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              rium fuerit, intelligis: nam ſola curuatura
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              digitorum, atque ea in ſiniſtram partem
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              ſuſtinebantur. </s>
              <s id="s.012656">Puer etiam præcipitem ſe
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              dabat cum ſphæris, alteráque earum fune
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              inter pedis plantam, & ſphæram hærente,
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              neſcio prorſus qua ratione, ne ob rotundi­
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                <arrow.to.target n="marg1730"/>
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              tatem dilaberetur pendebat. </s>
              <s id="s.012657">Verùm ſupra
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              fidem omnem atque expectationem ars fuit,
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              atque audacia duorum Turcarum: tibi vi­
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              ſa ac toti vrbi noſtræ refero. </s>
              <s id="s.012658">Duo erant
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              iuuenes corpore haud magno, ſed tereti:
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              quiſque illorum primus aſſumpto homine
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              in humeros per funem ad dimidium recti
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              anguli accliuem aſcendebat, & abſque
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              etiam ponderum auxilio. </s>
              <s id="s.012659">Inde adiectis gla­
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              diis trium fermè palmorum longitudinis,
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              præacutis, aciéque nouaculæ, pedum mal­
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              leolis, rurſus cum homine eodem aſcende­
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              bat, adeò diſtentis pedibus vt nec in plana
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              terræ ſuperficie facilè fuerit ſic ambulare.
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              </s>
              <s id="s.012660">Inde funi ſuperpoſita tabula, pedibus verò
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              ſuppoſitis ſublicis quas noſtri ciues vocant
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              ſcancias, ſuper tabulam ſic poſitam ambula­
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              bat, cùm tabula ipſa per ſe, ne vel momento
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              funi ſuperſtare poſſet. </s>
              <s id="s.012661">Deinde quinque
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              teretia ligna ferreo filo craſſiore transfixa,
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              ob idque cohærentia, ſed ita vt nullum
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              alteri poſſet rectè inſiſtere, vtrinque ſup­
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              ponebat pedibus, cum quibus ſuper fu­
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              nem ambulabat, cùm nemo ſic per planum
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              ſolum poſſit ambulare, imò ne ſtare queat,
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              hinc inde rotundis lignis, quæ craſſiora
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              brachio non eſſent dilabentibus. </s>
              <s id="s.012662">Poſtmo­
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              dum ſuppoſitis patellis æneis abſque vin­
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              culo, quas pedum extenſione retinere co­
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              gebatur, ſuper fune ibat. </s>
              <s id="s.012663">Pòſt in caldario
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              (ſic enim Itali vas æneum vocant magnum)
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              ſedens ſtabat, caldarium ſupra funem pen­
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              dulum, horribile dictu. </s>
              <s id="s.012664">Quòd verò proxi­
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              mum miraculo fuit, haſtam cum ponderi­
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              bus vaſi ſubduxit, vt caldarium in aëre
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              pendêre videretur. </s>
              <s id="s.012665">Nam haſtam retrò in­
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              ter vas, & funem poſitam antè reduxit.
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              </s>
              <s id="s.012666">Saltabat ad rhythmum ſuper fune pulſan­
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              te tympano, & modò ſe præcipitem ex il­
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              la dabat hærens ſolo calce ( his oculis vidi)
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              modò tarſo, ac cymba pedis. </s>
              <s id="s.012667">Stupeat ne­
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              ceſſe eſt qui videat alterum eorum diſten­
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              tæ tenuiori funi, vt quæ pollicem non ex­
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              cederet craſſitudine, inſiſtere, ac immota
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              tota ſuperiore parte, inferiorem tanto im­
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              petu cum fune agitare, vt hinc inde palmis
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              pluſquàm duodecim celerrimè ac quaſi ia­
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              culi iactu moueatur. </s>
              <s id="s.012668">Quòd verò minus pro­
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              digioſum fuit, ſed ſupra fidem tamen om­
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              nem humanæ potentiæ eſt, quòd cùm è
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              campo louiæ arcis ad turrim, quæ altiſſi­
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              ma eſt, aſcendiſſet cum ponderibus, inde è
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              ſumma turri aſcendit ad trabem per funem,
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                <figure id="id.016.01.284.1.jpg" xlink:href="016/01/284/1.jpg" number="150"/>
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              quæ à plano plus tribus partibus è quatuor
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              recti anguli adeò erecta erat, diſtabat. </s>
              <s id="s.012669">Ma­
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              iore quoque miraculo deſcendit quàm aſ­
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              cendiſſet, pronus ſcilicet tanquam ruitu­
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              rus in caput. </s>
              <s id="s.012670">Animaduerſum eſt, pollice
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              pedis vtriuſque dum funem continet ad­
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              uerſus alios digitos tanquam forcipe fer­
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              rea, tantum vim ſuſtinuiſſe. </s>
              <s id="s.012671">Neque aliter
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              fieri potuit, vt vel aſcenderet tam erecto
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              fune, vel deſcendens non rueret præceps.
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              </s>
              <s id="s.012672">Voluit dum hæc ageret hominem ſecum
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              humeris ſuſtollere, magno pretio etiam ad­
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              dito. </s>
              <s id="s.012673">Sed tam temerarij propoſiti compli­
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              cem non inuenit. </s>
              <s id="s.012674">Itaque nil mirum eſt,
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              quoſcunque maximos principes hoc ſpecta­
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              culo, vt re maximè egregia, delectatos fuiſ­
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              ſe. </s>
              <s id="s.012675">Plebem verò cenſuiſſe arte dæmonum
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              hæc fieri, quandoquidem ſupra vires huma­
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              nas viderentur. </s>
              <s id="s.012676">Sed ceſſauit admiratio poſt­
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              quàm liberalitate tua, ac perſuaſionibus
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                <arrow.to.target n="marg1731"/>
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              alter eorum, rarò exemplo noſtræ ætatis
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              Chriſtianus factus eſt, exhibetque eadem
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              ſpectacula. </s>
              <s id="s.012677">Qui etiam prænomine tuo do­
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              natus eſt. </s>
              <s id="s.012678">Hunc ſæpe vidimus vaſa tria fi­
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              gulina rotunda, & parum caua, medio mu­
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              nita orbiculo ex aurichalco cauo, ad capi­
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              tis claui magnitudinem, ſerico circum or­
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              biculum, ne diffluant munita, trifido ex­
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              cipere, ideóque celeriter manu penè im­
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              mota in diuerſas partes circumagere, vt
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              viſum effugerent. </s>
              <s id="s.012679">Cauſa eſt æquilibrio con­
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              iuncta leuitas metalli, ac vis illa latens, de </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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