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

Page concordance

< >
< >
page |< < of 862 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/258.jpg" pagenum="228"/>
              Boyling of the Sun's own
                <emph type="italics"/>
              ſuperficies
                <emph.end type="italics"/>
              di­
                <lb/>
              verſe eminent Mathematicians have plau­
                <lb/>
              ſibly enough (but how truly I leave
                <lb/>
              your Lordſhip to Judge) endeavour'd to
                <lb/>
              give an Account of it. </s>
              <s>But if we will joine
                <lb/>
              with thoſe that have aſcrib'd of late this
                <lb/>
                <emph type="italics"/>
              Phænomenon
                <emph.end type="italics"/>
              to the Refraction the Sun­
                <lb/>
              Beames fuffer in our vapid Air; we may,
                <lb/>
              as hath been intimated, promote their Do­
                <lb/>
              ctrin by deducing from it, that probably
                <lb/>
              the ſurface Atmoſphere is oftentimes (if
                <lb/>
              not alwayes) exceedingly curl'd or wav'd.
                <lb/>
              </s>
              <s>And certainly it is ſomewhat wonderfull
                <lb/>
              as well as very pleaſant to behold, how,
                <lb/>
              to him that looks upon the ſetting Sun
                <lb/>
              through a long & excellent Teleſcope,
                <lb/>
              there will not only appeare ſtrange ine­
                <lb/>
              qualities in the edge of it (inſomuch that
                <lb/>
              I have often ſeen it more indented than a
                <lb/>
              Saw) but thoſe inequalities will vaniſh in
                <lb/>
              one place and preſently appeare in ano­
                <lb/>
              ther, and ſeem perfectly to move like
                <lb/>
              waves ſucceeding and deſtroying one an­
                <lb/>
              other; ſave that their Motion oftentimes
                <lb/>
              ſeemes to be quickeſt as if in that vaſt ſea
                <lb/>
              they were carried on by a current, or at
                <lb/>
              leaſt by a tide. </s>
              <s>And this (as we elſe
                <lb/>
              where note) appear's to the eye not on­
                <lb/>
              ly when it looks directly through the te-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>