Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665
page |< < of 248 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s id="s.001314">
                <pb pagenum="114" xlink:href="025/01/118.jpg"/>
              Luna communicet corporibus ſublunaribus, in Plenilunio; longè minùs
                <lb/>
              in Quadraturis; in Novilunio demum minùs quidem quam in Plenilunio,
                <lb/>
              plus verò quam in Quadraturis. </s>
            </p>
            <p type="main">
              <s id="s.001315">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              Hæc ſanè mihi ſummopere placent; volvo tamen in mente
                <lb/>
              nonnihil difficilè. </s>
              <s id="s.001316">Fingamus enim Lunam in L, vaporemque eductum
                <lb/>
              attolli ſecundùm altitudinem LE, quem vocemus radium Atmoſphæræ
                <lb/>
              Lunaris; erit prædictæ Atmoſphæræ Hemiſphærium BED; & in toto
                <lb/>
              illo orbe LMKR, æquale Hemiſphærium, vt HGI, QNO, TVX fin­
                <lb/>
              gendum eſt. </s>
              <s id="s.001317">In Novilunio verò, Hemiſphærium Atmoſphæræ Lunaris
                <lb/>
              erit QPO, & in orbe illo diurno, TSX, BCD, HFI, in Quadratura
                <lb/>
              verò M, erit GIF, PQN, SXV, CDE, denique in Quadratura R, erit
                <lb/>
              STV, CBE, GHF, PON. </s>
              <s id="s.001318">Vnde ſequitur meo judicio, æqualem
                <lb/>
              ſemper eſſe humoris educti copiam circumfuſam, ac proinde æqualem
                <lb/>
              gravitationem & preſſionem; igitur æqualem æſtum. </s>
            </p>
            <p type="main">
              <s id="s.001319">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.001320"> Fateor vltro æqualem ferè ſemper eſſe portionem humoris Lu­
                <lb/>
              naris educti, admixtique aëris tractui intra Atmoſphæram orbitæ Lunaris
                <lb/>
              contenti, ſed hic parum denſatur, ac proinde vix gravior evadit, niſi intra
                <lb/>
              vmbras ab alterutro globo projectas immergatur; neque hoc ſufficit, niſi
                <lb/>
              gravior factus propior terræ ſit, quàm Lunæ; hoc autem circa Plenilunium
                <lb/>
              fieri conſtat, in quo ſcilicet vmbra terræ projicitur quaſi directè versùs Lu­
                <lb/>
              nam; vnde magna humoris educti copia in dictam vmbram immergitur,
                <lb/>
              ac proinde denſatur, & gravior evadit; Lunâ autem recedente ab L, ver­
                <lb/>
              sùs M, & K, humor ille tandem propior terræ fit: quid mirum igitur, ſi
                <lb/>
              aër, cui admixtus eſt magis in terram gravitet? </s>
              <s id="s.001322">Idem dico de Novilunio.
                <lb/>
              </s>
              <s id="s.001323">Vbi enim Luna ex K Novilunij puncto pervenit per R in L, Sol ferè li­
                <lb/>
              neæ EC reſpondet, vnde vtraque vmbra tum Lunæ, tum terræ projicitur
                <lb/>
              in illum aëris tractum, qui eſt circa P, & cui eductus humor admixtus eſt;
                <lb/>
              hinc valdè denſatur & gravior fit, & cùm ſit propior terræ, verſus illam
                <lb/>
              tendit, deſcenditque infra dirimentem: Si autem Luna ponatur in Quadra­
                <lb/>
              tura M, vmbræ Lunæ ille aëris tractus, qui eſt inter IO, & cui humor
                <lb/>
              eductus admixtus eſt, ſtatim diuque immergitur, vt patet; ſive vmbra pro­
                <lb/>
              jecta ſit à Luna, Sole poſito inter QT, & Luna inter OI, ſive ab ipſa
                <lb/>
              terra, Sole ſito paulò vltra R & Luna in K ; hinc denſatur & gravior fit, &
                <lb/>
              cùm Luna tunc fit propior, in eam gravitat & tendit. </s>
              <s id="s.001324">Denique ſi Luna
                <lb/>
              ponatur in Quadratura R, ille aëris tractus, cui humor eductus admixtus
                <lb/>
              eſt, vmbræ terræ immergitur, quando Sol pervenit ferè in M ; Sed tunc Lu­
                <lb/>
              na eſt circa K, igitur vicinior, igitur in Lunam gravitat; pari modo, So­
                <lb/>
              le poſito inter IO, Luna verò inter QT, immergitur in vmbram Lu­
                <lb/>
              næ; ſed tunc etiam gravitat in Lunam, cui propior eſt. </s>
            </p>
            <p type="main">
              <s id="s.001325">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.001326"> Rem hanc probè intelligo, & nihil clarius eſſe videtur; duo
                <lb/>
              tantùm ex te ſcire velim, immò tria; primum eſt, vtrùm Sol æquali­
                <lb/>
              ter agat in illud Hemiſphærium Lunæ, quod illuſtrat, v.g.in BED, quan­
                <lb/>
              do eſt Plenilunium; Secundum eſt, quid tandem fiat de humore illo ex
                <lb/>
              Luna educto, terriſque illapſo. </s>
              <s id="s.001327">Tertium vtrùm ipſo Plenilunij die ſit ma­
                <lb/>
              ximus æſtus, an paulò ante, ſeu poſt Oppoſitionis momentum. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum