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

Page concordance

< >
Scan Original
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
< >
page |< < of 862 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/079.jpg" pagenum="39"/>
              ſtopple may be lifted up without any dif­
                <lb/>
              ficulty at all. </s>
            </p>
            <p type="main">
              <s>By ſeveral other of the Experiments
                <lb/>
              afforded us by our Engine, the ſame no­
                <lb/>
              tion of the great and equal preſſure of the
                <lb/>
              free Air upon the Bodies it environs,
                <lb/>
              might be here manifeſted, but that we
                <lb/>
              think it not ſo fit to anticipate ſuch Ex­
                <lb/>
              periments: And therefore ſhall rather
                <lb/>
              employ a few lines to clear up a difficulty
                <lb/>
              touching this matter, which we have ob­
                <lb/>
              ſerv'd to have troubled ſome even of the
                <lb/>
              Philoſophical and Mathematical Specta­
                <lb/>
              tors of our Engine, who have wonder'd
                <lb/>
              that we ſhould talk of the Air exquiſitely
                <lb/>
              ſhut up in our Receiver, as if it were all
                <lb/>
              one with the preſſure of the Atmoſphere;
                <lb/>
              whereas the thick and cloſe body of the
                <lb/>
              Glaſs, wholly impervious to the Air, does
                <lb/>
              manifeſtly keep the incumbent Pillar of
                <lb/>
              the Atmoſphere from preſſing in the leaſt
                <lb/>
              upon the Air within the Glaſs, which it
                <lb/>
              can no where come to touch. </s>
              <s>To eluci­
                <lb/>
              date a little this matter, let us conſider,
                <lb/>
              That if a man ſhould take a fleece of
                <lb/>
              Wool, and having firſt by compreſſing it
                <lb/>
              in his hand reduc'd it into a narrower com­
                <lb/>
              paſs, ſhould nimbly convey and ſhut it
                <lb/>
              cloſe up into a Box juſt fit for it, though </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum