Harriot, Thomas, Harriot papers, vol. VIa: Projectiles, centre of gravity, reflexion of bodies [HMC 241 VIa]

List of thumbnails

< >
1
1
2
2 		3
3 (1)
4
4 (1v) 		5
5 (2)
6
6 (2v) 		7
7 (3)
8
8 (3v) 		9
9 (4)
< >
page |< < (3) of 68 > >|
    <echo version="1.0RC">
      <text xml:lang="eng" type="free">
        <div type="section" level="1" n="1">
          <pb file="0007.jpg" o="3" n="7"/>
          <div type="page_commentary" level="0" n="0">
            <p>
              <s xml:space="preserve">[
                <emph style="bf">Commentary:</emph>
              </s>
            </p>
            <p>
              <s xml:space="preserve"> The page is part of Harriot’s
                <ref target="http://echo.mpiwg-berlin.mpg.de/content/scientific_revolution/harriot/maps/8.1.3_Comparison.pt">notes on empirical ranges</ref>
              , see
                <ref id="schemmel_2008">(Schemmel 2008, Section 8.4)</ref>
              . </s>
              <s xml:space="preserve"> The notes on this page serve the comparison of Harriot’s
                <ref target="http://echo.mpiwg-berlin.mpg.de/content/scientific_revolution/harriot/maps/8.1.2_Ranges.pt">theoretically calculated ranges</ref>
              to empirical ones derived from
                <ref id="bourne_1587">(Bourne 1587, 27)</ref>
              . </s>
              <s xml:space="preserve"> The upper table displays Harriot’s theoretically determined ranges for the elevation angles used by Bourne (and additionally for 45°), together with the differences between some of them. </s>
              <s xml:space="preserve"> The velocities of the shots are all given as 100,000. </s>
              <s xml:space="preserve"> The lower table displays Bourne’s ranges scaled in such a way that Bourne’s range of a shot at 20° coincides with Harriot’s. </s>
              <s xml:space="preserve"> The corresponding velocity is given as 100,000, while for the velocities for the other elevations Harriot refers to page 12 in his own pagination, i.e.
                <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/mpiwg/online/permanent/library/HE20QBY3/pageimg&viewMode=image&mode=imagepath&pn=9">f. 4</ref>
              . </s>
              <s xml:space="preserve"> (In the second column of this table, the rates of Bourne’s ranges are given in another scaling. The bars indicating degrees above the first three numbers were drawn by mistake.) </s>
              <s xml:space="preserve"> There is a graphite drawing on the lower right side of the page showing two ellipses, which is probably related to the notes on the ellipse as the line of velocities (see the
                <ref target="http://echo.mpiwg-berlin.mpg.de/content/scientific_revolution/harriot/maps/8.1.4_Initial.pt">notes on initial velocity</ref>
              ). </s>
              <s xml:space="preserve">]</s>
            </p>
          </div>
          <head xml:space="preserve"> 11.) </head>
          <p>
            <s xml:space="preserve"> The rate of randons supposing:
              <lb/>
            The velocityes at the mouth, aequall & 100,000
              <lb/>
            The vpright randon. 50,000.
              <lb/>
            The double vpright: 100,000 </s>
          </p>
          <p>
            <s xml:space="preserve"> velocitates
              <lb/>
            […] </s>
          </p>
          <p>
            <s xml:space="preserve"> The rates of Bourne. velocitates inventae pag. 12.
              <lb/>
            [
              <emph style="bf">Commentary: </emph>
            See
              <ref target="http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=/mpiwg/online/permanent/library/HE20QBY3/pageimg&viewMode=image&mode=imagepath&pn=9">f. 4</ref>
            . ]
              <lb/>
            […] </s>
          </p>
        </div>
      </text>
    </echo>
Impressum