Fabri, Honoré, Tractatus physicus de motu locali, 1646

List of thumbnails

< >
271
271 		272
272
273
273 		274
274
275
275 		276
276
277
277 		278
278
279
279 		280
280
< >
page |< < of 491 > >|
    <archimedes>
      <text>
        <body>
          <chap id="N1EE3A">
            <p id="N1FA0E" type="main">
              <s id="N1FA1D">
                <pb pagenum="247" xlink:href="026/01/279.jpg"/>
              uis rarum, & tenue, quod aliquantulum non reſiſtat, vt clarum eſt; </s>
              <s id="N1FA26">tunc
                <lb/>
              quoque eſt reſiſtentia ſine ceſſione, ſeu tota reſiſtentia, cum ipſum cor­
                <lb/>
              pus reſiſtens nullo modo cedit; </s>
              <s id="N1FA2E">id eſt nullo modo mouetur ab ictu; </s>
              <s id="N1FA32">neque
                <lb/>
              enim excogitari poteſt maior reſiſtentia; </s>
              <s id="N1FA38">denique tunc eſt æqualis ceſ­
                <lb/>
              ſio reſiſtentiæ, cum ipſum corpus, in quod aliud impingitur (vocetur re­
                <lb/>
              flectens) tantùm cedit quantum reſiſtit; </s>
              <s id="N1FA40">cedit autem per motum; </s>
              <s id="N1FA44">igitur
                <lb/>
              ſi reflectenti imprimitur æqualis motus ab impacto reflectens æqualiter
                <lb/>
              cedit, & reſiſtit, ſi minor minùs cedit, & plùs reſiſtit, ſi nullus nullo mo­
                <lb/>
              do cedit, ſed tantùm reſiſtit; ſi maior plùs cedit, & minùs reſiſtit, ſcili­
                <lb/>
              cet in infinitum, donec tandem in vacuo ſit tantum ceſſio, nulla reſi­
                <lb/>
              ſtentia. </s>
            </p>
            <p id="N1FA52" type="main">
              <s id="N1FA54">Tertiò, tunc impactum motum æqualem imprimit reflectenti, cum
                <lb/>
              impactum æquale eſt reflectenti, tùm mole, tùm pondere v.g. globus A
                <lb/>
              impactus in globum B eiuſdem materiæ, & diametri, modo nullus fiat
                <lb/>
              attritus partium, ſeu compreſſio, ſitque linea directionis connectens
                <lb/>
              centra per punctum contactus, quod in primo libro iam demonſtratum
                <lb/>
              eſt; </s>
              <s id="N1FA64">cum enim totus impetus globi A agat, & quantum poteſt; </s>
              <s id="N1FA68">certè pro­
                <lb/>
              ducit æqualem; </s>
              <s id="N1FA6E">nec enim aliunde determinari poteſt æqualitas effectus
                <lb/>
              quàm ab æqualitate cauſæ poſitis iiſdem circumſtantiis, & cum impetus
                <lb/>
              in B impreſſus diſtribuatur tot partibus quot producens æqualis in A,
                <lb/>
              vterque impetus eſt æquè intenſus; </s>
              <s id="N1FA78">igitur æquè velox motus per ſe; </s>
              <s id="N1FA7C">cum
                <lb/>
              per accidens aliquando ſecus accidat; </s>
              <s id="N1FA82">ſi verò reflectens ſit minor, idem
                <lb/>
              impetus paucioribus partibus diſtribuitur; </s>
              <s id="N1FA88">igitur intenſior eſt; </s>
              <s id="N1FA8C">igitur
                <lb/>
              velocior motus, ſecus verò cum maior eſt, donec tandem tanta ſit moles,
                <lb/>
              vt plura ſint puncta in reflectente, quàm ſint in impacto puncta impe­
                <lb/>
              tus; tunc enim nullus imprimitur impetus, vt conſtat ex dictis lib. 1. </s>
            </p>
            <p id="N1FA97" type="main">
              <s id="N1FA99">Quartò, quod autem ſit æqualis reſiſtentia, & ceſſio globi B æqualis
                <lb/>
              globo A etiam certum eſt; </s>
              <s id="N1FA9F">tùm quia, ſi æqualiter mouetur, æqualiter ce­
                <lb/>
              dit, vt iam dixi ſi æqualiter cedit, æqualiter reſiſtit; </s>
              <s id="N1FAA5">nam quâ proportio­
                <lb/>
              ne minùs cedit, plùs reſiſtit; </s>
              <s id="N1FAAB">igitur qua proportione ceſſio augetur, reſi­
                <lb/>
              ſtentia imminuitur: præterea cum reſiſtat per ſuam entitatem impene­
                <lb/>
              trabilem, duram &c. </s>
              <s id="N1FAB3">certè ſi eſt æqualis entitas, eſt æqualis reſiſtentia; </s>
              <s id="N1FAB7">
                <lb/>
              quod etiam videmus in corporibus immerſis eiuſdem grauitatis cum
                <lb/>
              medio, ita vt tot ſint partes impellentes, quot impulſæ; </s>
              <s id="N1FABE">denique illud
                <lb/>
              experimentum quo videmus globum A impactum in B æqualem per li­
                <lb/>
              neam connectentem centra immobilem ſiſtere, rem iſtam euincit; </s>
              <s id="N1FAC6">nam
                <lb/>
              ideo ſiſtit, quia eſt æqualis determinatio noua priori; </s>
              <s id="N1FACC">nam vt ſe habet
                <lb/>
              reſiſtentia reflectentis, ita ſe habet noua determinatio, quam ſuo modo
                <lb/>
              confert impacto, vt ſuprà demonſtratum eſt: </s>
              <s id="N1FAD4">& cùm ſint ad lineas op­
                <lb/>
              poſitas ex diametro hæ duæ determinationes, neutra præualere poteſt;
                <lb/>
              igitur neceſſe eſt ſiſtere globum impactum. </s>
            </p>
            <p id="N1FADC" type="main">
              <s id="N1FADE">Quintò, certum eſt determinationem nouam eſſe iuxta proportionem
                <lb/>
              reſiſtentiæ, & hanc iuxta proportionem minoris ceſſionis; </s>
              <s id="N1FAE4">vnde cum
                <lb/>
              nulla eſt reſiſtentia, ſed tantùm ceſsio, nulla prorſus eſt noua determina­
                <lb/>
              tio igitur à termino nullius reſiſtentiæ, & totius ceſsionis ad terminum </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum