Fabri, Honoré, Tractatus physicus de motu locali, 1646

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          <chap id="N270EE">
            <pb pagenum="390" xlink:href="026/01/424.jpg"/>
            <p id="N27CF8" type="main">
              <s id="N27CFA">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              10.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N27D06" type="main">
              <s id="N27D08">
                <emph type="italics"/>
              Omnes gyrationum modi explicari, & demonſtrari poſſunt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N27D0F" type="main">
              <s id="N27D11">Primò, vertitur baculus manu primo circa proprium axem, vt
                <expan abbr="veru">verum</expan>
              ,
                <lb/>
              quia inflectitur eodem modo manus & inferior brachij portio: </s>
              <s id="N27D17">ſecundo
                <lb/>
              circa alteram extremitatem quæ manu tenetur: tertio circa quodlibet
                <lb/>
              aliud punctum, ratio petitur tùm à tali brachij motu, tùm ab eo modo,
                <lb/>
              quo baculus tenetur, </s>
            </p>
            <p id="N27D21" type="main">
              <s id="N27D23">Secundò, circumagitur funis vel funda; </s>
              <s id="N27D27">quia producitur maior im­
                <lb/>
              petus in extremitate remota circa centrum immobile; hinc circulus; </s>
              <s id="N27D2D">
                <lb/>
              hinc quia extremitatis illius motus determinatur ſemper ad Tangentem,
                <lb/>
              tenditur funis; ſed de funda infrà, cum de proiectione. </s>
            </p>
            <p id="N27D34" type="main">
              <s id="N27D36">Tertiò, multos alios gyros facimus, manu, brachio, collo, pede, toto
                <lb/>
              denique corporis trunco; </s>
              <s id="N27D3C">quot enim habemus articulos, tot motus cir­
                <lb/>
              cularis habemus centra; </s>
              <s id="N27D42">hinc ſuæ apothecæ caput oſſis tam aptè inſe­
                <lb/>
              ritur, vt circa illam facilè moueatur; </s>
              <s id="N27D48">exemplum habes in oculo, dum
                <lb/>
              infra ſuam thecam voluitur; </s>
              <s id="N27D4E">ſed de tota corporis fabrica, quatenus con­
                <lb/>
              ducit ad motum, ſuo loco agemus; nec enim hi motus ad hunc tracta­
                <lb/>
              tum pertinent. </s>
            </p>
            <p id="N27D56" type="main">
              <s id="N27D58">Quartò, hinc reuoca deflexionem illam iacti globi, de qua ſuprà, quæ
                <lb/>
              familiaris eſt trunculorum ludo, item gyros globi, quem, vel inter duas
                <lb/>
              volas circumagis, vel inter volam, & aliud planum, qui partim ad impul­
                <lb/>
              ſum, partim ad tractum pertinent; ſed neque hæc ſunt difficilia. </s>
            </p>
            <p id="N27D62" type="main">
              <s id="N27D64">
                <emph type="center"/>
                <emph type="italics"/>
              Scholium.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N27D70" type="main">
              <s id="N27D72">Obſeruabis vix poſſe vno Theoremate compræhendi omnia phœno­
                <lb/>
              mena percuſſionis, cuius ſunt tria veluti prima genera, ſcilicet ictus, ca­
                <lb/>
              ſus, iactus: ictum appello illam percuſſionem, quæ infligitur pugno, ma­
                <lb/>
              nu, calce, cornu, vel quolibet organo, cum potentia motrice coniuncto,
                <lb/>
              v.g. fuſte, ſaxo, flagello, &c. </s>
              <s id="N27D80">caſus eſt percuſſio à corpore graui deorſum
                <lb/>
              cadente inflicta; iactus denique eſt percuſſio, quæ aliquam emiſſionem,
                <lb/>
              ſeu vibrationem ſupponit, lapidis, pilæ, &c. </s>
              <s id="N27D88">itaque vt omnia percuſſio­
                <lb/>
              nis phœnomena diſtinctiùs explicemus, ſingulis Theorematis ſingulos
                <lb/>
              percuſſionis modos explicabimus. </s>
            </p>
            <p id="N27D8F" type="main">
              <s id="N27D91">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              11.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N27D9D" type="main">
              <s id="N27D9F">
                <emph type="italics"/>
              Explicantur omnia phœnomena percuſſionis, quæ infligitur manu, pugno,
                <lb/>
              brachio, calce, cornu.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N27DA8" type="main">
              <s id="N27DAA">Primò, pugnus infligit ictum diuerſo motu; primò, motu recto; </s>
              <s id="N27DAE">ſit
                <lb/>
              enim humerus AB, caput cubiti B, os cubiti BF, fiat arcus AC, & KI,
                <lb/>
              ita vt ABK ſit æqualis ABF; </s>
              <s id="N27DB6">certè ACI erit totum brachium tenſum,
                <lb/>
              caput B nunquam recedit ab arcu BC, nec extremitas F à recta FI; </s>
              <s id="N27DBC">vbi
                <lb/>
              autem F peruenit in G; </s>
              <s id="N27DC2">aſſumatur GE æqualis FB: </s>
              <s id="N27DC6">vbi verò F peruenit
                <lb/>
              in H; </s>
              <s id="N27DCC">aſſumatur HD æqualis FB, & habebitur proportio motus extre­
                <lb/>
              mitatis F & capitis B; vides motum rectum FI mixtum ex duobus cir­
                <lb/>
              cularibus circa centrum immobile A, & mobile B. </s>
            </p>
            <p id="N27DD4" type="main">
              <s id="N27DD6">Secundò, poſſet moueri per omnem lineam, v. g. FN, FM, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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