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
311 131
312 132
313 133
314 134
315 135
316 136
317 137
318 138
319 139
320 140
321 141
322 142
323 143
324 144
325 145
326 146
327 147
328 148
329 149
330 150
331 151
332 152
333 153
334 154
335 155
336 156
337 157
338 158
339 159
340 160
< >
page |< < (131) of 370 > >|
311131That the Earth may be a Planet. ſuch thing as a right Motion, whether of Aſ-
cent or Deſcent, in a ſtreight Line.
I anſwer: The moving of heavy or light
11Sol. Bodies, may be conſidered in a double rela-
tion.
1. According to the ſpace wherein they
move, and then we grant their Motions not
to be ſimple, but mixed of a direct and cir-
cular.
2. According to the Body or medium
wherein they move, and then they may pro-
perly be ſaid to have right motions, becauſe
they paſs through the medium in a ſtreight
Line;
and therefore it is, that unto us they
ſeem directly to aſcend or deſcend.
Ariſto-
tle himſelf would not deny, but that Fire
may aſcend in a ſtreight Line unto its Sphere,
and yet participate alſo of that Circular
Motion which he ſuppoſes to be communica-
ted from the Heavens, unto the upper part
of the Air, and its own Region.
So like-
wiſe muſt it be for the deſcent of any thing.
Suppoſe a Ship in its ſwifteſt motion, and a
Man in it, having ſome Veſſel filled with Wa-
ter, ſhould let fall into it a little Ball of
Wax, or ſome other matter which may be
ſlow in its ſinking, ſo that in one minute it
ſhould ſcarce deſcend the ſpace of a Cubit,
though the Ship (it may be) in the ſame
time may paſs at leaſt a hundred Cubits;

yet would this ſtill ſeem unto the eye to de-
ſcend in a ſtreight Line;
and the other mo-
tion, which is communicated unto it by the
Ship, would not at all be diſcernable to it.

Text layer

  • Dictionary

Text normalization

  • Original
  • Regularized
  • Normalized

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index