Salusbury, Thomas, Mathematical collections and translations (Tome I), 1667
page |< < of 701 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="040/01/177.jpg" pagenum="159"/>
              following the birds flight with the piece, is his ſomewhat
                <lb/>
              ting it, taking his aim before it; as alſo his ſhooting (as I believe)
                <lb/>
              not with one bullet, but with many ſmall balls (called ſhot) the
                <lb/>
              which ſcattering in the air poſſeſs a great ſpace; and alſo the
                <lb/>
              treme velocity wherewith theſe ſhot, being diſcharged from the
                <lb/>
              Gun, go towards the bird.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>See how far the winged wit of
                <emph type="italics"/>
              Sagredus
                <emph.end type="italics"/>
              anticipateth,
                <lb/>
              and out-goeth the dulneſs of mine; which perhaps would have
                <lb/>
                <arrow.to.target n="marg349"/>
                <lb/>
              light upon theſe diſparities, but not without long ſtudie. </s>
              <s>Now
                <lb/>
              turning to the matter in hand, there do remain to be conſidered
                <lb/>
              by us the ſhots at point blank, towards the Eaſt and towards the
                <lb/>
              Weſt; the firſt of which, if the Earth did move, would always
                <lb/>
              happen to be too high above the mark, and the ſecond too low;
                <lb/>
              foraſmuch as the parts of the Earth Eaſtward, by reaſon of the
                <lb/>
              urnal motion, do continually deſcend beneath the tangent paralel
                <lb/>
              to the Horizon, whereupon the Eaſtern ſtars to us appear to aſcend;
                <lb/>
              and on the contrary, the parts Weſtward do more and more
                <lb/>
              cend, whereupon the Weſtern ſtars do in our ſeeming deſcend:
                <lb/>
              and therefore the ranges which are leveled according to the ſaid
                <lb/>
              tangent at the Oriental mark, (which whilſt the ball paſſeth
                <lb/>
              along by the tangent deſcendeth) ſhould prove too high, and the
                <lb/>
              Occidental too low by means of the elevation of the mark, whilſt
                <lb/>
              the ball paſſeth along the tangent. </s>
              <s>The anſwer is like to the reſt:
                <lb/>
              for as the Eaſtern mark goeth continually deſcending, by reaſon
                <lb/>
              of the Earths motion, under a tangent that continueth
                <lb/>
              able; ſo likewiſe the piece for the ſame reaſon goeth continually
                <lb/>
              inclining, and with its mounture purſuing the ſaid mark: by
                <lb/>
              which means the ſhot proveth true.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg349"/>
                <emph type="italics"/>
              The anſwer to the
                <lb/>
              Argument taken
                <lb/>
              from the ſhots at
                <lb/>
              point blanck
                <lb/>
              wards the Eaſt &
                <lb/>
              Weſt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>But here I think it a convenient opportunity to give notice of
                <lb/>
                <arrow.to.target n="marg350"/>
                <lb/>
              certain conceſſions, which are granted perhaps over liberally by
                <lb/>
              the followers of
                <emph type="italics"/>
              Copernicus
                <emph.end type="italics"/>
              unto their Adverſaries: I mean of
                <lb/>
              yielding to them certain experiments for ſure and certain, which
                <lb/>
              yet the Adverſaries themſelves had never made tryal of: as for
                <lb/>
              example, that of things falling from the round-top of a ſhip whilſt
                <lb/>
              it is in motion, and many others; amongſt which I verily believe,
                <lb/>
              that this of experimenting whether the ſhot made by a Canon
                <lb/>
              wards the Eaſt proveth too high, and the Weſtern ſhot too low,
                <lb/>
              is one: and becauſe I believe that they have never made tryal
                <lb/>
              thereof, I deſire that they would tell me what difference they
                <lb/>
              think ought to happen between the ſaid ſhots, ſuppoſing the Earth
                <lb/>
              moveable, or ſuppoſing it moveable; and let
                <emph type="italics"/>
              Simplieius
                <emph.end type="italics"/>
              for this
                <lb/>
              time anſwer for them.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg350"/>
                <emph type="italics"/>
              The followers of
                <lb/>
              Copernicus too
                <lb/>
              freely admit
                <lb/>
              tain propoſitions for
                <lb/>
              true, which are
                <lb/>
              very doubtfull.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>I will not undertake to anſwer ſo confidently as another
                <lb/>
              more intelligent perhaps might do; but ſhall ſpeak what thus upon
                <lb/>
              the ſudden I think they would reply; which is in effect the ſame </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum