Galilei, Galileo, The systems of the world, 1661

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="065/01/063.jpg" pagenum="57"/>
              inſtant, and its poſſible it may be a commixtion of my own
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              ceipts; and thoſe which I have ſometime read in the fore-ſaid
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              Books, by which I well remember, that I was then perfectly
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              ſatisfied, although the concluſions, at firſt ſight ſeem'd unto me
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              ſtrange Paradoxes. </s>
              <s>We enquire
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              whether to the
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              king a reflection of light, like that which we receive from the
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              Moon, it be neceſſary that the ſuperficies from whence the
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              ction commeth, be ſo ſmooth and polite, as the face of a
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              Glaſſe, or whether a ſuperficies not ſmooth or poliſht, but rough
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              and uneven, be more apt for ſuch a purpoſe. </s>
              <s>Now ſuppoſing
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              two reflections ſhould come unto us, one more bright, the other
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              leſſe, from two ſuperficies oppoſite unto us, I demand of you,
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              which of the two ſuperficies you think would repreſent it ſelf to
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              our ſight, to be the cleareſt, and which the obſcureſt.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>I am very confident, that that ſame, which moſt
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              cibly reflected the light upon me, would ſhew its ſelf in its aſpect
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              the clearer, and the other darker.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Be pleaſed to take that Glaſſe which hangs on yonder
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                <arrow.to.target n="marg164"/>
                <lb/>
              Wall, and let us go out into the Court-yard. </s>
              <s>Come
                <emph type="italics"/>
              Sagredus.
                <emph.end type="italics"/>
                <lb/>
              Now hang the glaſſe yonder, againſt that ſame Wall, on which
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              the Sun ſhines, and now let us with-draw our ſelves into the ſhade.
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              </s>
              <s>See yonder two ſuperficies beaten by the Sun, namely, the Wall
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              and the Glaſſe. </s>
              <s>Tell me now which appears cleareſt unto you,
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              that of the Wall or that of the Glaſſe? </s>
              <s>Why do you not anſwer
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              me?</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg164"/>
                <emph type="italics"/>
              It is proved at
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              large that the
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              Moons ſurface is
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              ſharp.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>I leave the reply to
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              who made the
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              on; but I, for my own part, am perſwaded upon this ſmall
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              ginning of the experiment, that the Moon muſt be of a very
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              poliſht ſurface.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>What ſay you
                <emph type="italics"/>
              Simplicius,
                <emph.end type="italics"/>
              if you were to depaint that
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              Wall, and that Glaſſe faſtened unto it, where would you uſe
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              your darkeſt colours, in deſigning the Wall, or elſe in painting
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              the Looking-Glaſſe.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>Much the darker in depainting the Glaſſe.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Now if from the ſuperficies, which repreſents it ſelf
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              more clear, there proceedeth a more powerful reflection of light,
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              the Wall will more forcibly reflect the raies of the Sun, than the
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              Glaſſe.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>Very well, Sir, have you ever a better experiment
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              than this? </s>
              <s>you have placed us where the Glaſſe doth not
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              berate upon us; but come along with me a little this way; how,
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              will you not ſtir?</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>You perhaps ſeek the place of the reflection, which the
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              Glaſſe makth.</s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>I do ſo.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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