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
271 91
272 92
273 93
274 94
275 95
276 96
277 97
278 98
279 99
280 100
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
< >
page |< < (131) of 370 > >|
That 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
Sol.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

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index