Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665

Page concordance

< >
Scan Original
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
< >
page |< < of 248 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <pb pagenum="73" xlink:href="025/01/077.jpg"/>
            <p type="main">
              <s id="s.000828">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000829"> Non ſomnio, Auguſtine; nihil dixi, quod demonſtrare non
                <lb/>
              poſſim. </s>
            </p>
            <figure id="id.025.01.077.1.jpg" xlink:href="025/01/077/1.jpg" number="24"/>
            <p type="main">
              <s id="s.000830">Sit enim
                <expan abbr="centrũ">centrum</expan>
              vniverſi A, in quo
                <lb/>
              Solem ſtatuitis; ſit arcus magni orbis
                <lb/>
              DB, 29. circiter grad. quem ſcilicet
                <lb/>
              terra decurrit, toto illo tempore; quo
                <lb/>
              Luna ab vna copula, ad aliam ve­
                <lb/>
              nit; Sit AD. 2000.Semidiam. terræ
                <lb/>
              DH 60. DB 508.circiter; vnde HD
                <lb/>
              in DB octies fere continetur. </s>
              <s id="s.000831">Sit au­
                <lb/>
              tem primùm Luna in copula H, vt
                <lb/>
              deinde tranſeat per oppoſitionem G
                <lb/>
              ad ſequentem copulam I eo tempore,
                <lb/>
              quo terra decurrit arcum DCB: divi­
                <lb/>
              datur arcus DC in 4.partes æquales
                <lb/>
              DELMC: ita progreditur terra cum
                <lb/>
              Luna, vt terra ſitin D, Luna in H ;
                <lb/>
              terra in E, Luna in O; terra in L,
                <lb/>
              Luna in E; terra in M, Luna in P ;
                <lb/>
              terra in C, Luna in G ; codem pro­
                <lb/>
              greſſionis ordine terra à C tendit in B, & Luna à G tendit in I. </s>
              <s id="s.000832">En tibi
                <lb/>
              veram ac germanam lineam Lunaris motus in tua hypotheſi ; eodem por­
                <lb/>
              rò tempore Luna ſegmenta HE & EG conficit; vnde vides, quàm ſit inæ­
                <lb/>
              qualis motus; & multò majorem inæqualitatis proportionem invenies, ſi
                <lb/>
              compares ſegmentum HO cum ſegmento EP, vel PG; & vt ſegmentum
                <lb/>
              HO decurrit Luna, eo tempore, quo primum octantem ſuæ periodi, ap­
                <lb/>
              parenti motu decurrere videtur, id eſt 45. grad. ſi accipiamus minorem
                <lb/>
              arcum v. g. 12. grad. paulò plùs, qui eſt arcus illius ferè diurnus, etſi com­
                <lb/>
              paremus ſpatium, quod acquirit intereà, reali motu, tum circa Novilu­
                <lb/>
              nium H, tum circa Plenilunium G, longè maior erit inæqualitatis propor­
                <lb/>
              tio inter illa duo ſpatia, æqualibus temporibus decurſa, licèt quoad appa­
                <lb/>
              rentiam æqualia ſpatia videantur. </s>
              <s id="s.000833">Vnde neceſſariò ſequitur, Lunam inæ­
                <lb/>
              quali motu moveri, reali ſcilicet & phyſico, atque in tanta inæqualitatis pro­
                <lb/>
              portione, vt qualibet aſſignabili major ſit. </s>
            </p>
            <p type="main">
              <s id="s.000834">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000835"> Si nihil aliud habes, hæc minimè nos vrgent; nam ſuppo­
                <lb/>
              nimus Lunam moveri in epicyclo, cujus terra centrum eſt, ac proinde
                <lb/>
              Luna movetur motu mixto ex motu orbis & motu centri, vtroque certè
                <lb/>
              æquabili; ſed ex duobus motibus æquabilibus, motum mixtum minimè
                <lb/>
              æquabilem reſultare mirum dictu non eſt; immo neſcire non potes, cuili­
                <lb/>
              bet hypotheſi, quæ epicyclos adſtruit, hoc eſſe commune. </s>
            </p>
            <p type="main">
              <s id="s.000836">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000837"> Non dubitabam, quin hæc dicturus eſſes, ſed antequàm vlteriùs
                <lb/>
              progrediar, non admittis, opinor, in Luna realem epicyclum; ſi enim realis
                <lb/>
              Epicyclus eſſet, haud dubiè cum ſuperficie terræ intra 24.horas ſuum orbem
                <lb/>
              abſolveret, quod certè abſurdum dictu eſt; cùm decurrat tantùm eo tempo­
                <lb/>
              re 12.gradus paulò plus. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum