Wilkins, John, A discovery of a new world : or a discourse tending to prove, that 'tis probable there may be another Habitable World in the Moon ; with a discourse concerning the Probability of a Passage thither; unto which is added, a discourse concerning a New Planet, tending to prove, that 'tis probable our earth is one of the Planets

Page concordance

< >
Scan Original
281 101
282 102
283 103
284 104
285 105
286 106
287 107
288 108
289 109
290 110
291 111
292 112
293 113
294 114
295 115
296 116
297 117
298 118
299 119
300 120
301 121
302 122
303 123
304 124
305 125
306 126
307 127
308 128
309 129
310 130
< >
page |< < (129) of 370 > >|
That the Earth may be a Planet.
    <echo version="1.0RC">
      <text xml:lang="en" type="free">
        <div type="section" level="1" n="63">
          <p>
            <s xml:space="preserve">
              <pb o="129" file="0309" n="309" rhead="That the Earth may be a Planet."/>
            non will be transferred to the ſcituation D
              <lb/>
            E, ſo that the Bullet muſt be moved ac-
              <lb/>
            cording to the Line FG, which is not di-
              <lb/>
            rectly upright, but ſomewhat declining.
              <lb/>
            </s>
            <s xml:space="preserve">Now, the motion of the Bullet in the Air,
              <lb/>
            muſt neceſſarily be conformed unto that di-
              <lb/>
            rection that is impreſſed in it by the Cannon
              <lb/>
            from whence it is ſhot, and ſo conſequently
              <lb/>
            it muſt be continued, according to the Line
              <lb/>
            F G, and therefore will always keep per-
              <lb/>
            pendicularly over the Point from which it
              <lb/>
            did aſcend.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">If you reply, That the motion of the
              <lb/>
            Bullet in the Cannon, muſt needs be ſo
              <lb/>
            ſwift, that the Earth cannot carry the Can-
              <lb/>
            non from C to E, in the ſame ſpace of time
              <lb/>
            wherein the Bullet does move from B to A.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">I anſwer: </s>
            <s xml:space="preserve">’Tis not material whether the
              <lb/>
            Earth be of a greater or le@er ſwiftneſs than
              <lb/>
            the Bullet, becauſe the Declination muſt al-
              <lb/>
            ways be proportionable to the motion of
              <lb/>
            the Earth; </s>
            <s xml:space="preserve">and if we ſuppoſe this to be
              <lb/>
            ſlower than the Bullet, then the Declina-
              <lb/>
            tion of the Line F G, will be ſo much the
              <lb/>
            leſs.</s>
            <s xml:space="preserve"/>
          </p>
          <p>
            <s xml:space="preserve">This Truth may yet further be illuſtrated
              <lb/>
            by the practice of thoſe Fowlers, who uſe
              <lb/>
            to kill Birds as they are flying: </s>
            <s xml:space="preserve">Concerning
              <lb/>
            which Art, ’tis commonly thought, that theſe
              <lb/>
            Men direct their Aims to ſome certain ſpace
              <lb/>
            in the Air, juſt before the Birds, where they
              <lb/>
            conceive the Shot will meet with them in their
              <lb/>
            flight; </s>
            <s xml:space="preserve">whereas, the truth is, they proceed
              <lb/>
            in this caſe, the very ſame way as if the</s>
          </p>
        </div>
      </text>
    </echo>