Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667

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              <s>
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              nious, and to outward appearance moſt powerful, you may ſee
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              how much more acute and ingenious the ſolution muſt be, and
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              not to be found by a wit leſſe piercing than that of
                <emph type="italics"/>
              Copernicus
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              ;
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              and again from the difficulty in underſtanding it, you may argue
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              the ſo much greater difficulty in finding it. </s>
              <s>But let us for the
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              ſent ſuſpend our anſwer, which you ſhall underſtand in due time
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              and place, after we have repeated the objection of
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              Ariſtotle,
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              and
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              that in his favour, much ſtrengthened. </s>
              <s>Now paſſe we to
                <emph type="italics"/>
              Ari-
                <emph.end type="italics"/>
                <lb/>
                <arrow.to.target n="marg308"/>
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                <emph type="italics"/>
              ſtotles
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              third Argument, touching which we need give no farther
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              reply, it having been ſufficiently anſwered betwixt the diſcourſes
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              of yeſterday and to day: In as much as he urgeth, that the
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              tion of grave bodies is naturally by a right line to the centre; and
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              then enquireth, whether to the centre of the Earth, or to that
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              of the Univerſe, and concludeth that they tend naturally to the
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              centre of the Univerſe, but accidentally to that of the Earth.
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                <arrow.to.target n="marg309"/>
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              Therefore we may proceed to the fourth, upon which its requiſite
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              that we ſtay ſome time, by reaſon it is founded upon that
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              riment, from whence the greater part of the remaining
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              ments derive all their ſtrength.
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              Ariſtotle
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              ſaith therefore, that it is
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              a moſt convincing argument of the Earths immobility, to ſee
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              that projections thrown or ſhot upright, return perpendicularly
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              by the ſame line unto the ſame place from whence they were ſhot
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              or thrown. </s>
              <s>And this holdeth true, although the motion be of a
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              very great height; which could never come to paſſe, did the
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              Earth move: for in the time that the projected body is moving
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              upwards and downwards in a ſtate of ſeparation from the Earth,
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              the place from whence the motion of the projection began, would
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              be paſt, by means of the Earths revolution, a great way
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              wards the Eaſt, and look how great that ſpace was, ſo far from
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              that place would the projected body in its deſcent come to the
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              ground. </s>
              <s>So that hither may be referred the argument taken from
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              a bullet ſhot from a Canon directly upwards; as alſo that other
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              uſed by
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              Ariſtotle
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              and
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              Ptolomy,
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              of the grave bodies that falling
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              from on high, are obſerved to deſcend by a direct and
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              lar line to the ſurface of the Earth. </s>
              <s>Now that I may begin to untie
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              theſe knots, I demand of
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              Simplicius
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              that in caſe one ſhould deny
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              to
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              Ptolomy
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              and
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              Ariſtotle
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              that weights in falling freely from on
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              high, deſcend by a right and perpendicular line, that is, directly
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              to the centre, what means he would uſe to prove it?</s>
            </p>
            <p type="margin">
              <s>
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              Ariſtotles
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                <lb/>
              ment againſt the
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              Earths motion, is
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              defective in two
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              things
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              </s>
            </p>
            <p type="margin">
              <s>
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              * The ſame word
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              which a little above
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              I tendred ſtay
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              hind, as a bowle
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              when it meets with
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              ruls.</s>
            </p>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              The anſwer to
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              the third
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              ment.
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg309"/>
                <emph type="italics"/>
              The anſwer to
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              the fourth
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              ment.
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              </s>
            </p>
            <p type="main">
              <s>SIMPL. </s>
              <s>The means of the ſenſes; the which aſſureth us, that
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              that Tower or other altitude, is upright and perpendicular, and
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              ſheweth us that that ſtone, or other grave body, doth ſlide along
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              the Wall, without inclining a hairs breadth to one ſide or
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              ther, and light at the foot thereof juſt under the place from whence
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              it was let fall.</s>
            </p>
          </chap>
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