Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

List of thumbnails

< >
21
21 		22
22
23
23 		24
24
25
25 		26
26
27
27 		28
28
29
29 		30
30
< >
page |< < of 303 > >|
    <archimedes>
      <text>
        <body>
          <chap id="N10019">
            <p id="N13D61" type="main">
              <s id="N13DC8">
                <pb pagenum="129" xlink:href="005/01/137.jpg"/>
              ctitudine viæ deuiet,
                <expan abbr="moxq.">moxque</expan>
              ſe vnà cum malo ad latus, ad
                <lb/>
              quod pars illa maior vergerit, omnino declinando demer­
                <lb/>
              gat; niſi protinus obſtauerit gubernator per conuerſionem
                <lb/>
              temonis, compellendo proram, ac reclinando illam ver­
                <lb/>
              ſus eandem partem, in qua ſequeretur ſubmerſio, ac vn­
                <lb/>
              de deflexerat, vt ventus à tergo ſpirans, ex æquo velum fe­
                <lb/>
              riat in prora,
                <expan abbr="propellatq.">propellatque</expan>
              recta nauigium ſicut prius. </s>
            </p>
            <p id="N13DFE" type="head">
              <s id="N13E00">Quæſtio Octaua.</s>
            </p>
            <p id="N13E03" type="main">
              <s id="N13E05">C
                <emph type="italics"/>
              vr ex figurarum genere quæcunque rotun­
                <lb/>
              dæ ſunt, & circinatæ, facilius mouentur?
                <lb/>
              </s>
              <s id="N13E0E">Trifariam autem circulum rotari contingit.
                <lb/>
              </s>
              <s id="N13E12">Aut enim ſecundum abſidem centro ſimul mo­
                <lb/>
              to, quemadmodum plauſtri vertitur rota: aut
                <lb/>
              circa manens centrum, veluti trochleæ ſtante
                <lb/>
              centro, aut in pauimento manente centro, ſicut figuli rota con­
                <lb/>
              vertitur: an celerrima quidem huiuſmodi ſunt, quoniam par­
                <lb/>
              ia ſui parte planum contingunt, veluti circulus ſecundum
                <lb/>
              punctum, & quoniam non offenſant. </s>
              <s id="N13E21">A terra enim ſemotus eſt
                <lb/>
              angulus. </s>
              <s id="N13E26">Præterea etiam cui obuiam fiunt corpori, id rurſum
                <lb/>
              ſecundum puſillum tangunt. </s>
              <s id="N13E2B">Si autem rectilineum eſſet, re­
                <lb/>
              ctitudine ſua multum plani contingeret. </s>
              <s id="N13E30">Ad hæc quo nutat
                <lb/>
              pondus, eò motor mouet. </s>
              <s id="N13E35">Cùm igitur ad rectum ſuper plano
                <lb/>
              circuli fuerit diameter, planum ſecundum punctum contin­
                <lb/>
              gente circulo æquale vtrinque pondus diſterminat diameter.
                <lb/>
              </s>
              <s id="N13E3D">Cùm autem mouetur plus illico, ad quod mouetur, ceri inde nu­
                <lb/>
              tans, ab impellente facilius in ante mouetur. </s>
              <s id="N13E42">Quo enim vnum­
                <lb/>
              quodque vergit, mouetur ex facili. </s>
              <s id="N13E47">Siquidem difficulter ad
                <lb/>
              contrarium nutus ſui mouetur motum. </s>
              <s id="N13E4C">Praeterea nonnulli
                <lb/>
              autumant, quod circule linea in perpeti verſatur motu, quem­
                <lb/>
              admodum manentia propter contrarium nixum manent: ſicut
                <lb/>
              maioribus contingit circulis ad minores. </s>
              <s id="N13E55">Celeriùs enim ab
                <lb/>
              æquali mouentur potentia maiores circuli,
                <expan abbr="mouentq.">mouentque</expan>
              onera,
                <lb/>
              quoniam circuli maioris angulus ad minoris angulum, circu­
                <lb/>
              li nutum habet quendam: & ſicut diameter ad diametrum,
                <lb/>
              ita maior circulus ad minorem. </s>
              <s id="N13E64">Infiniti autem ſunt minores.
                <lb/>
              </s>
              <s id="N13E68">Si autem ad alterum nutum habet circulus, ſimiliter eſt benè
                <lb/>
              mobilis. </s>
              <s id="N13E6D">Et aliam ſanè habet inclinationem circulus, & ea
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum