Galilei, Galileo, Discourse concerning the natation of bodies, 1663

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              <s>
                <pb pagenum="468"/>
              and it ſhall ſuffice to reply, that he believed that it would ſwim;
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              and I will again charge him with having avoided a more wonderfull
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              and intricate Probleme, and introduced the more facile and leſs
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              wonderfull.</s>
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            <p type="main">
              <s>We ſay freely therefore; that
                <emph type="italics"/>
              Ariſtotle
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              did hold, that only the
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              broad Figure did ſwim, but the long and ſlender, ſuch as a Needle,
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              not. </s>
              <s>The which nevertheleſs is falſe, as it is alſo falſe in round
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              Bodies: becauſe, as from what hath been predemonſtrated, may be
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              thered, little Balls of Lead and Iron, do in like manner ſwim.</s>
            </p>
            <p type="main">
              <s>He propoſeth likewiſe another Concluſion, which likewiſe ſeems </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg1533"/>
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              different from the truth, and it is, That ſome things, by reaſon of
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              their littleneſs fly in the Air, as the ſmall duſt of the Earth, and the
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              thin leaves of beaten Gold: but in my Opinion, Experience ſhews
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              us, that that happens not only in the Air, but alſo in the water, in
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              which do deſcend, even thoſe Particles or Atomes of Earth, that
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              diſtur be it, whoſe minuity is ſuch, that they are not deſervable, ſave
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              only when they are many hundreds together. </s>
              <s>Therefore, the duſt
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              of the Earth, and beaten Gold, do not any way ſuſtain themſelves
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              in the Air, but deſcend downwards, and only fly to and again in
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              the ſame, when ſtrong Windes raiſe them, or other agitations of the
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              Air commove them: and this alſo happens in the commotion of the
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              water, which raiſeth its Sand from the bottom, and makes it muddy.
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              </s>
              <s>But
                <emph type="italics"/>
              Ariſtotle
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              cannot mean this impediment of the commotion, of
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              which he makes no mention, nor names other than the lightneſs of
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              ſuch Minutiæ or Atomes, and the Reſiſtance of the Craſſitudes of the
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              Water and Air, by which we ſee, that he ſpeakes of a calme, and
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              not diſturbed and agitated Air: but in that caſe, neither Gold nor
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              Earth, be they never ſo ſmall, are ſuſtained, but ſpeedily
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                <arrow.to.target n="marg1534"/>
              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1533"/>
                <emph type="italics"/>
              Ariſtotle
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              fir meth ſome
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              Bodies volatile
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              for their
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              ity, Text. </s>
              <s>42.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1534"/>
                <emph type="italics"/>
              Democritus
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              ced the Cauſe of
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              Natation in
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              certain ſiery
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              tomes.</s>
            </p>
            <p type="main">
              <s>He paſſeth next to confute
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              Democritus,
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              which, by his Teſtimony
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              would have it, that ſome Fiery Atomes, which continually aſcend
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              through the water, do ſpring upwards, and ſuſtain thoſe grave Bodies,
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              which are very broad, and that the narrow deſcend to the bottom, </s>
            </p>
            <p type="main">
              <s>
                <arrow.to.target n="marg1535"/>
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              for that but a ſmall quantity of thoſe Atomes, encounter and reſiſt
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              them.</s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg1535"/>
                <emph type="italics"/>
              Ariſtot. </s>
              <s>De Cœlo
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              lib. 4. cap. 6.
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              text. </s>
              <s>43.</s>
            </p>
            <p type="main">
              <s>I ſay,
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              Ariſtotle
                <emph.end type="italics"/>
              confutes this poſition, ſaying, that that ſhould
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                <arrow.to.target n="marg1536"/>
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              much more occurre in the Air, as the ſame
                <emph type="italics"/>
              Democritus
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              inſtances
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              gainſt himſelf, but after he had moved the objection, he ſlightly
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              ſolves it, with ſaying, that thoſe Corpuſcles which aſcend in the Air,
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              make not their
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              Impetus
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              conjunctly. </s>
              <s>Here I will not ſay, that the
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                <arrow.to.target n="marg1537"/>
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              reaſon alledged by
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              Democritus
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              is true, but I will only ſay, it ſeems
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              in my judgement, that it is not wholly confuted by
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              Ariſtotle,
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              whilſt he
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              ſaith, that were it true, that the calid aſcending Atomes, ſhould
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              ſuſtain Bodies grave, but very broad, it would much more be done
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              in the Air, than in Water, for that haply in the Opinion of
                <emph type="italics"/>
              Ariſtotle,
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              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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