Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

Page concordance

< >
Scan Original
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
< >
page |< < of 579 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.000649">
                <pb pagenum="129" xlink:href="010/01/137.jpg"/>
              alligetur; & Orificium AB denuò veſica tegatur,
                <lb/>
                <arrow.to.target n="marg161"/>
                <lb/>
              colligeturque ſtrictè: tandèm ſublata veſica infima
                <lb/>
              G concedatur egreſſus hydrargyro, vt nimirùm facta
                <lb/>
              ſolita vacuitate aeris remaneat hydrargyrum
                <expan abbr="ſuſpẽ-ſum">ſuſpen­
                  <lb/>
                ſum</expan>
              vſque ad O, & altitudo GO erit proximè vnius
                <lb/>
              cubiti, & quadrantis. </s>
              <s id="s.000650">His præparatis ſumatur lens
                <lb/>
              aliqua cryſtallina KL, & directè Soli S exponatur in
                <lb/>
              ea diſtantia, & ſitu in quo præcisè vertex coni radio­
                <lb/>
              ſi à radijs Solis refractis conuergentibus formati ad
                <lb/>
              contactum pilæ bituminoſæ D pertingat. </s>
              <s id="s.000651">Idipſum̨
                <lb/>
              fieri poteſt ope ſpeculi concaui vſtorij radios Solis
                <lb/>
              reflectentis, tunc liqueſcere incipit pila D, & fumum
                <lb/>
              emittit, in quo apparet mirabilis operatio, non enim
                <lb/>
              fumus, veluti in aere aperto accidit, ſursùm aſcen­
                <lb/>
              dit, ſed incuruatur flectiturque deorsùm per DMN
                <lb/>
              non ſecùs ac virgulæ illæ aquæ cadentis è fontibus,
                <lb/>
              inflexas, & deorsùm tendentes lineas deſcribunt. </s>
            </p>
            <p type="margin">
              <s id="s.000652">
                <margin.target id="marg161"/>
              Cap. 4. poſi­
                <lb/>
              tiuam leui­
                <lb/>
              tatem noņ
                <lb/>
              dari.</s>
            </p>
            <p type="main">
              <s id="s.000653">Porrò quia fumum non minùs quàm flammam
                <expan abbr="leuẽ">leuem</expan>
                <lb/>
              eſſe, atque ſursùm moueri ſponte ſua à naturali prin­
                <lb/>
              cipio impulſa,
                <expan abbr="cõmuniter">communiter</expan>
              Peripatetica Schola docet,
                <lb/>
              igitur neceſſario in ſpatio illo vacuo CEN, vel ſal­
                <lb/>
              tèm in quo aer non degit niſi valdè expanſus, & rare­
                <lb/>
              factus, fumus maiori vi ſursùm aſcendere deberet,
                <lb/>
              quàm in aere aperto, quia nimirùm ab aeris cor­
                <lb/>
              pulentia aliquo pacto impeditur ipſius progreſ­
                <lb/>
              ſus (videmus enim in aere aperto fumum ampliari,
                <lb/>
              diſſipari, ac diſpergi à prædicta aeris reſiſtentia,)
                <expan abbr="cũ-que">cun­
                  <lb/>
                que</expan>
              in ſpatio illo vacuo, vel à quo aer deficit poſſit
                <lb/>
              fumus naturali leuitate non impeditus liberiùs, & fa-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum