Galilei, Galileo, The systems of the world, 1661

Table of figures

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              <s>
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              without diminiſhing or increaſing it according to the preciſe rate
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              of its diminiſhing or increaſing in its Veſſel. </s>
              <s>Becauſe therefore
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                <arrow.to.target n="marg776"/>
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              that in the conſervation and retention of the
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              impetus
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              before
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              ceived, the diſobedience to a new augmentation or diminution of
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              motion conſiſteth, that moveable that ſhall be moſt apt for ſuch
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              a retention, ſhall be alſo moſt commodious to demonſtrate the
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              effect that followeth in conſequence of that retention. </s>
              <s>Now how
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              much the Water is diſpoſed to maintain ſuch a conceived
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              tion; though the cauſes ceaſe that impreſs the ſame, the
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              ence of the Seas extreamly diſturbed by impetuous Winds
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              eth us; the Billows of which, though the Air be grown calm, and
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              the Wind laid, for a long time after continue in motion: As the
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              Sacred Poet pleaſantly ſings,</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              The anſwer to
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              the objections
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              made againſt the
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              motion of the
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              reſtrial Globe.
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              </s>
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              + Corpulenta.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              The Water more
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              apt to conſerve an
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              impetus
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              conceived,
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              then the Air.
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              </s>
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            <p type="head">
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              Qual l'alto Egeo,
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              &c.----------</s>
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              <s>And that long continuing rough after a ſtorm, dependeth on
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              the gravity of the water: For, as I have elſewhere ſaid, light
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              dies are much eaſier to be moved than the more grave, but yet
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              are ſo much the leſs apt to conſerve the motion imparted, when
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              once the moving cauſe ceaſeth. </s>
              <s>Whence it comes that the Aire,
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              as being of it ſelf very light and thin, is eaſily mov'd by any very
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              ſmall force, yet it is withall very unable to hold on its motion,
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              the Mover once ceaſing. </s>
              <s>Therefore, as to the Aire which
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              rons the Terreſtrial Globe, I would fay, that by reaſon of its
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              adherence, it is no leſſe carried about therewith then the Water;
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              and eſpecially that part which is contained in its veſſels; which
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              veſſels are the valleys encloſed with Mountains. </s>
              <s>And we may
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              with much more reaſon affirm that this ſame part of the Air is
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              carried round, and born forwards by the rugged parts of the
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              Earth, than that the higher is whirl'd about by the motion of the
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              Heavens, as ye
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              Peripateticks
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              maintain.</s>
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            <p type="margin">
              <s>
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                <emph type="italics"/>
              Light bodies eaſier
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              to be moved than
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              beavy, but leſs aut
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              to conſerve the
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              tion.
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              </s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Its more rational
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              that the Air be
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              commoved by the
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              rugged ſurface of
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              the Earth than
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              by the Celeſtial
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              motion.
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              </s>
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              <s>What hath been hitherto ſpoken, ſeems to me a ſufficient
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              ſwer to the allega ion of
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              Simputius
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              ; yet nevertheleſs with a new
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              inſtance and ſolution, founded upon an admirable experiment, I
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              will ſuperabundantly ſatisfie him, and confirm to
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              Sagredus
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              the
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              mobility of the Earth. </s>
              <s>I have told you that the Air, and in
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              ticular that part of it which aſcendeth not above the tops of the
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              higheſt Mountains, is carried round by the uneven parts of the
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              Earths ſurface: from whence it ſhould ſeem, that it muſt of
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              ſequence come to paſſe, that in caſe the ſuperficies of the Earth
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              were not uneven, but ſmooth and plain, no cauſe would remain
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              for drawing the Air along with it, or at leaſt for revolving it with
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              ſo much uniformity. </s>
              <s>Now the ſurface of this our Globe, is not
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              all craggy and rugged, but there are exceeding great tracts very </s>
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