Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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    <archimedes>
      <text>
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          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/310.jpg" pagenum="280"/>
              when ſufficiently compreſſ'd, may per­
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              chance get entrance into narrower holes
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              and crannies then Water; yet unleſs the
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              Air be forc'd in at ſuch very little holes,
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              it will not get in at them, though they
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              may be big enough to let Water paſs
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              through them. </s>
            </p>
            <p type="main">
              <s>The Experiment then was this: I took
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              a fair Glaſs
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              Siphon,
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              the lower end of
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              whoſe longeſt Leg was drawn by degrees
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              to ſuch a ſlenderneſs, that the Orifice, at
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              which the Water was to fall out, would
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              hardly admit a very ſmall Pin: This
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              Si­
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              phon
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              being inverted, the matter was ſo
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              order'd, that a little Bubble of Air was
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              intercepted in the ſlendereſt part of the
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                <emph type="italics"/>
              Siphon,
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              betwixt the little hole newly men­
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              tion'd, and the incumbent Water, upon
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              which, it came to paſs, that the Air be­
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              ing not to be forc'd through ſo narrow a
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              paſſage, by ſo light a Cylinder of Water,
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              though amounting to the length of divers
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              Inches, as lean'd upon it, hinder'd the
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              further Efflux of the Water, as long as I
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              pleaſ'd to let it ſtay in that narrow place:
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              whereas, when by blowing a little at the
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              wider end of the
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              Siphon,
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              that little par­
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              cel of Air was forc'd out with ſome Wa­
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              ter, the remaining Water, that before </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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