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
121 109
122 110
123 111
124 112
125 113
126 114
127 115
128 116
129 117
130 118
131 119
132 120
133 121
134 122
135 123
136 124
137 126
138 127
139 126
140 128
141 129
142 131
143 130
144 132
145 133
146 134
147 135
148 136
149 137
150 138
< >
page |< < (141) of 370 > >|
    <echo version="1.0RC">
      <text xml:lang="en" type="free">
        <div xml:id="echoid-div155" type="section" level="1" n="43">
          <p>
            <s xml:id="echoid-s2052" xml:space="preserve">
              <pb o="141" file="0153" n="153" rhead="That the Moon may be a World."/>
            this Orb of vaporous Air, it might there reſt
              <lb/>
            immovable, and would not have in it any pro-
              <lb/>
            penſion to this motion of Deſcent.</s>
            <s xml:id="echoid-s2053" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2054" xml:space="preserve">For the better illuſtration of this, you muſt
              <lb/>
            know, that the heavineſs of a body, or (as
              <lb/>
              <note position="right" xlink:label="note-0153-01" xlink:href="note-0153-01a" xml:space="preserve">De cælo
                <lb/>
              lib.4.cap.1.</note>
            Ariſtotle defines it) the proneneſs of it to tend
              <lb/>
            down unto ſome Centre, is not any abſolute
              <lb/>
            quality intrinſical unto it, as if, whereever the
              <lb/>
            body did retain its Eſſence, it muſt alſo retain
              <lb/>
            this quality: </s>
            <s xml:id="echoid-s2055" xml:space="preserve">or as if Nature had emplanted in
              <lb/>
            every condenſed Body Appetitionem centri, & </s>
            <s xml:id="echoid-s2056" xml:space="preserve">
              <lb/>
            fugam extremitatis. </s>
            <s xml:id="echoid-s2057" xml:space="preserve">Such a Love to the Cen-
              <lb/>
            tre, and hatred to the Extremities. </s>
            <s xml:id="echoid-s2058" xml:space="preserve">Becauſe
              <lb/>
            one of theſe being leſs than a quantity, and the
              <lb/>
            other no more, cannot have any power of At-
              <lb/>
            traction or Diſpulſion in them. </s>
            <s xml:id="echoid-s2059" xml:space="preserve">According to
              <lb/>
            that common principle, Quantitatis nulla eſt
              <lb/>
            efficacia.</s>
            <s xml:id="echoid-s2060" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2061" xml:space="preserve">But now the true nature of Gravity is this.
              <lb/>
            </s>
            <s xml:id="echoid-s2062" xml:space="preserve">
              <note position="right" xlink:label="note-0153-02" xlink:href="note-0153-02a" xml:space="preserve">A magne-
                <lb/>
              tical natu-
                <lb/>
              ral axtra-
                <lb/>
              ction.
                <lb/>
              So Keplar
                <lb/>
              Somn.
                <lb/>
              Aſtron. N.
                <lb/>
              66.
                <lb/>
              Coper. l. 1.
                <lb/>
              cap. 26.
                <lb/>
              Foſcarin in
                <lb/>
              epiſt. ad
                <lb/>
              Sebaſt.
                <lb/>
              Fantonum.</note>
            ’Tis ſuch a reſpective mutual deſire of Union,
              <lb/>
            whereby condenſed Bodies, when they come
              <lb/>
            within the Sphere of their own Vigour, do
              <lb/>
            naturally apply themſelves, one to another by
              <lb/>
            Attraction or Coition. </s>
            <s xml:id="echoid-s2063" xml:space="preserve">But being both with-
              <lb/>
            out the reach of eithers Virtue, they can ceaſe
              <lb/>
            to move, and though they have general Apti-
              <lb/>
            tude, yet they have not any preſent Inclinati-
              <lb/>
            on or proneneſs to one another. </s>
            <s xml:id="echoid-s2064" xml:space="preserve">And ſo con-
              <lb/>
            ſequently, cannot be ſtiled heavy.</s>
            <s xml:id="echoid-s2065" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s2066" xml:space="preserve">The meaning of this will be clearly Illuſtra-
              <lb/>
            ted by a Simtlitude. </s>
            <s xml:id="echoid-s2067" xml:space="preserve">As any light Body
              <lb/>
            (ſuppoſe the Sun) does ſend forth his Beams
              <lb/>
            in an orbicular form; </s>
            <s xml:id="echoid-s2068" xml:space="preserve">ſo likewiſe any magneti-
              <lb/>
            cal Body, for inſtance, a round Load-ſtone does
              <lb/>
              <note position="right" xlink:label="note-0153-03" xlink:href="note-0153-03a" xml:space="preserve">Gilbert de
                <lb/>
              Maguete.
                <lb/>
              l. 2. cap. 7.</note>
            caſt abroad his magnetical Vigour in a Sphere.
              <lb/>
            </s>
            <s xml:id="echoid-s2069" xml:space="preserve">Thus.</s>
            <s xml:id="echoid-s2070" xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>
Impressum