Galilei, Galileo, The systems of the world, 1661

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              <s>
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              Sun; which were it not ſo, it could not do. </s>
              <s>Thirdly, I hold its
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              matter to be moſt denſe and ſolid as the Earth is, which I clearly
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              argue from the unevenneſs of its ſuperficies in moſt places, by means
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              of the many eminencies and cavities diſcovered therein by help of
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              the
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              ſeleſcope
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              : of which eminencies there are many all over it,
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              rectly reſembling our moſt ſharp and craggy mountains, of which
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              you ſhall there perceive ſome extend and run in ledges of an
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              dred miles long; others are contracted into rounder forms; and
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              there are alſo many craggy, ſolitary, ſteep and cliffy rocks. </s>
              <s>But
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              that of which there are frequenteſt appearances, are certain Banks
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              (I uſe this word, becauſe I cannot thing of another that better
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              preſſeth them) pretty high raiſed, which environ and incloſe fields
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              of ſeveral bigneſſes, and form ſundry figures, but for the moſt part
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              circular; many of which have in the midſt a mount raiſed pretty
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              high, and ſome few are repleniſhed with a matter ſomewhat
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              ſcure, to wit, like to the great ſpots diſcerned by the bare eye, and
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              theſe are of the greateſt magnitude; the number moreover of thoſe
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              that are leſſer and leſſer is very great, and yet almoſt all circular.
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              Fourthly, like as the ſurface of our Globe is diſtinguiſhed into two
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              principal parts, namely, into the Terreſtrial and Aquatick: ſo in
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              the Lunar ſurface we diſcern a great diſtinction of ſome great fields
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              more reſplendant, and ſome leſs: whoſe aſpect makes me believe,
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              that that of the Earth would ſeem very like it, beheld by any one
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              from the Moon, or any other the like diſtance, to be illuminated
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                <arrow.to.target n="marg149"/>
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              by the Sun: and the ſurface of the ſea would appear more
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              ſcure, and that of the Earth more bright. </s>
              <s>Fifthly, like as we from
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              the Earth behold the Moon, one while all illuminated, another
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              while half; ſometimes more, ſometimes leſs; ſometimes horned,
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              ſometimes wholly inviſibly; namely, when its juſt under the Sun
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              beams; ſo that the parts which look towards the Earth are dark:
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              Thus in every reſpect, one ſtanding in the Moon would ſee the
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              illumination of the Earths ſurface by the Sun, with the ſame
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              periods to an hair, and under the ſame changes of figures.
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              </s>
              <s>Sixtly, -----</s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The
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              Firſt
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              blance between the
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              Moon and Earth;
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              which is that of
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              figure; is proved by
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              the manner of
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              ing illuminated by
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              the Sun.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg146"/>
                <emph type="italics"/>
              The
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              Second
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              formity is the
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              Moons being
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              cous as the Earth.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg147"/>
                <emph type="italics"/>
              Thirdly, The
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              ter of the Moon is
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              denſe and mo
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              nous as the Earth.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg148"/>
                <emph type="italics"/>
              Fourthly, The
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              Moon is
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              guiſhed into two
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              different parts for
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              clarity and
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              rity, as the
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              strial Globe into
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              Sea and Land.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg149"/>
                <emph type="italics"/>
              The ſurface of the
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              Sea would ſhew at
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              a diſtance more
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              ſoure than that of
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              the Earth.
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Fiftly,
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              tion of ſigures in
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              the Earth, like to
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              thoſe of the Moon,
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              and made with the
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              ſame periods.
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              </s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>Stay a little,
                <emph type="italics"/>
              Salviatus
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              ; That the illumination of
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              the Earth, as to the ſeveral figures, would repreſent it ſelf to a perſon
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              placed in the Moon, like in all things to that which we diſcover in
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              the Moon, I underſtand very well, but yet I cannot conceive how
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              it ſhall appear to be done in the ſame period; ſeeing that that
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              which the Suns illumination doth in the Lunar ſuperficies in a
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              month, it doth in the Terreſtrial in twenty four hours.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>Its true, the effect of the Sun about the illuminating
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              theſe two bodies, and repleniſhing with its ſplendor their whole
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              ſurfaces, is diſpatch'd in the Earth in a Natural day, and in the
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              Moon in a Month; but the variation of the figures in which the </s>
            </p>
          </chap>
        </body>
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    </archimedes>
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