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

Page concordance

< >
Scan Original
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
< >
page |< < of 862 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/173.jpg" pagenum="143"/>
              or more above the ſurface of that in the
                <lb/>
              Veſſel; of which I know not whether it
                <lb/>
              will be needful to aſſign ſo obvious a cauſe
                <lb/>
              as that, though the little Air remaining
                <lb/>
              in the Receiver could not hinder a Cylin­
                <lb/>
              der of above an Inch high of Quick-ſilver
                <lb/>
              from ſubſiding; yet it might very well
                <lb/>
              be able, by its preſſure, to countervail the
                <lb/>
              weight of a Cylinder of a Foot long or
                <lb/>
              more, of a Liquor ſo much leſs ponderous
                <lb/>
              then Quick-ſilver, as Water is. </s>
              <s>And in
                <lb/>
              fine, to conclude our Experiment, when
                <lb/>
              the Water was drawn down thus low, we
                <lb/>
              found, that by letting in the outward Air,
                <lb/>
              it might be immediately impell'd up a­
                <lb/>
              gain to the higher parts of the Tube. </s>
            </p>
            <p type="main">
              <s>We will adde no more concerning this
                <lb/>
              Experiment, ſave that having try'd it in
                <lb/>
              one of our ſmall Receivers, we obſerv'd,
                <lb/>
              That upon the firſt exſuction of the Air
                <lb/>
              the Water did uſually ſubſide divers In­
                <lb/>
              ches, and at the ſecond (exſuction) fall
                <lb/>
              down much lower, ſubſiding ſometimes
                <lb/>
              near two Foot; as alſo that upon the let­
                <lb/>
              ting in of the Air from without, the Wa­
                <lb/>
              ter was impell'd up with very great ce­
                <lb/>
              lerity. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum