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
141 129
142 131
143 130
144 132
145 133
146 134
147 135
148 136
149 137
150 138
151 139
152 140
153 141
154 142
155 143
156 144
157 145
158 146
159 147
160 148
161 149
162 150
163 151
164 152
165 153
166 154
167 155
168 156
169 157
170 158
< >
page |< < (147) of 370 > >|
That the Moon may be a World.
1. When a Man is in the bottom of a deep
River, tho’ he have over him a multitude of
heavy Waters, yet he is not burdened with
the weight of them.
And though another Bo-
dy, that ſhould be but of an equal Gravity,
with theſe Waters, when they are taken out,
would be heavy enough to preſs him to death;
yet notwithſtanding whilſt they are in the
Channel, they do not in the leaſt manner cruſh
him with their Load.
The reaſon is, becauſe
they are both in their right places;
and ’tis
proper for the Man being the more condenſed
Body, to be lower than the Waters.
or ra-
ther thus, becauſe the body of the Man does
more nearly agree with the Earth, in this affe-
ction, which is the ground of its attraction,
and therefore doth more ſtrongly attract it,
than the waters that are over it.
Now, as in
ſuch a caſe, a body may loſe the Operation
of its Gravity, which is, to move, or to preſs
downwards:
So may it likewiſe, when it is
ſo far out of its place, that this attractive
Power cannot reach unto it.
’Tis a pretty Notion to this purpoſe, menti-
oned by Albertus de Saxonia, and out of him
Phyſ. l. 3.
Q. 6. art. 2.
by Francis Mendoca;
that the Air is in ſome
Viridar.
l. 4. Prob.
47.
part of it Navigable.
And that upon this Sta-
tick Principle;
any Braſs or Iron Veſſel (ſup-
poſe a Kettle) whoſe ſubſtance is much hea-
vier than that of the Water, yet being filled
Vide Arch.
l. de inſi-
dentibus.
bumido.
with the lighter Air, it will ſwim upon it, and
not ſink.
So ſuppoſe a Cup, or Wooden Veſ-
ſel, upon the outward borders of this Elemen-
tary Air, the Cavity of it being filled with
Fire, or rather Æthereal Air, it muſt neceſ-

Text layer

  • Dictionary

Text normalization

  • Original

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index