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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="040/01/156.jpg" pagenum="138"/>
              Earth, doth not onely follow the courſe of that perſon, but doth
                <lb/>
              much out go him. </s>
              <s>Which Problem is connexed with this, that
                <lb/>
              the moveable being thrown by the projicient above the plane of
                <lb/>
              the Horizon, may acquire new velocity, greater by far than that
                <lb/>
              confer'd upon it by the projicient. </s>
              <s>The which effect I have with
                <lb/>
              admiration obſerved, in looking upon thoſe who uſe the ſport of
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              tops, which, ſo ſoon as they are ſet out of the hand, are ſeen to
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              move in the air with a certain velocity, the which they afterwards
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              much encreaſe at their coming to the ground; and if whipping
                <lb/>
              them, they rub at any uneven place that makes them skip on high,
                <lb/>
              they are ſeen to move very ſlowly through the air, and falling
                <lb/>
              gain to the Earth, they ſtill come to move with a greater velocity:
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              But that which is yet more ſtrange, I have farther obſerved, that
                <lb/>
              they not onely turn always more ſwiftly on the ground, than in
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              the air, but of two ſpaces both upon the Earth, ſometimes a
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              tion in the ſecond ſpace is more ſwift than in the firſt. </s>
              <s>Now what
                <lb/>
              would
                <emph type="italics"/>
              Simplicius
                <emph.end type="italics"/>
              ſay to this?</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg324"/>
                <emph type="italics"/>
              Sundry curious
                <lb/>
              Problems,
                <lb/>
              ing the motions of
                <lb/>
              projects.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>He would ſay in the firſt place, that he had never made
                <lb/>
              ſuch an obſervation. </s>
              <s>Secondly, he would ſay, that he did not
                <lb/>
              lieve the ſame. </s>
              <s>He would ſay again, in the third place, that if
                <lb/>
              you could aſſure him thereof, and demonſtratively convince him of
                <lb/>
              the ſame, he would account you a great Dæmon.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>I hope then that it is one of the Socratick, not infernal
                <lb/>
              ones. </s>
              <s>But that I may make you underſtand this particular, you
                <lb/>
              muſt know, that if a perſon apprehend not a truth of himſelf, it
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              is impoſſible that others ſhould make him underſtand it: I may
                <lb/>
              deed inſtruct you in thoſe things which are neither true nor falſe;
                <lb/>
              but the true, that is, the neceſſary, namely, ſuch as it is impoſſible
                <lb/>
              ſhould be otherwiſe, every common capacity either comprehendeth
                <lb/>
              them of himſelf, or elſe it is impoſſible he ſhould ever know them.
                <lb/>
              </s>
              <s>And of this opinion I am confident is
                <emph type="italics"/>
              Salviatus
                <emph.end type="italics"/>
              alſo: and
                <lb/>
              fore I tell you, that the reaſons of the preſent Problems are known
                <lb/>
              by you, but it may be, not apprehended.</s>
            </p>
            <p type="main">
              <s>SIMP. </s>
              <s>Let us, for the preſent, paſs by that controverſie, and
                <lb/>
              permit me to plead ignorance of theſe things you ſpeak of, and try
                <lb/>
              whether you can make me capable of underſtanding theſe
                <lb/>
              blems.</s>
            </p>
            <p type="main">
              <s>SAGR. </s>
              <s>This firſt dependeth upon another, which is, Whence
                <lb/>
              cometh it, that ſetting a top with the laſh, it runneth farther, and
                <lb/>
              conſequently with greater force, than when its ſet with the
                <lb/>
              gers?</s>
            </p>
            <p type="main">
              <s>SIMP.
                <emph type="italics"/>
              Ariſtotle
                <emph.end type="italics"/>
              alſo makes certain Problems about theſe kinds
                <lb/>
              of projects.</s>
            </p>
            <p type="main">
              <s>SALV. </s>
              <s>He doth ſo; and very ingenious they are:
                <lb/>
              ly, That, Whence it cometh to paſs that round tops run better than
                <lb/>
              the ſquare?</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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