Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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grave bodies falling from the top of a Tower, and from
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ctions made perpendicularly upwards, or according to any
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tion ſidewayes towards the Eaſt, Weſt, North, South, &c. </
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<
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>have
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ſomewhat abated in me the antiquated incredulity I had conceived
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againſt that opinion: but other greater doubts run in my mind
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at this very inſtant, which I know not in the leaſt how to free my
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ſelf of, and haply you your ſelf will not be able to reſolve them;
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nay, its poſſible you may not have heard them, for they are very
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modern. </
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<
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>And theſe are the objections of two Authours, that
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ex
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profeſſo
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write againſt
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Copernicus.
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Some of which are read in a
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little Tract of natural concluſions; The reſt are by a great both
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Philoſopher and Mathematician, inſerted in a Treatiſe which he
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hath written in favour of
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Aristotle,
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and his opinion touching the
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inalterability of the Heavens, where he proveth, that not onely
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the Comets, but alſo the new ſtars, namely, that
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anno
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1572. in
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Caſſiopeia,
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and that
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anno
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1604. in
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Sagittarius
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were not above the
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Spheres of the Planets, but abſolutely beneath the concave of
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the Moon in the Elementary Sphere, and this he demonſtrateth
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gainſt
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Tycho, Kepler,
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and many other Aftronomical Obſervators,
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and beateth them at their own weapon; to wit, the Doctrine of
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Parallaxes. </
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<
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>If you like thereof, I will give you the reaſons of
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both theſe Authours, for I have read them more than once,
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with attention; and you may examine their ſtrength, and give
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your opinion thereon.</
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Other objections
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of two modern
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thors against
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pernicus.</
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<
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>SALV. </
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>In regard that our principal end is to bring upon the
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ſtage, and to conſider what ever hath been ſaid for, or againſt the
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two Syſtemes,
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Ptolomaick,
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and
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Copernican,
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it is not good to omit
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any thing that hath been written on this ſubject.</
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<
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>SIMP. </
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>I will begin therefore with the objections which I finde
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in the Treatiſe of Concluſions, and afterwards proceed to the
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reſt. </
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>In the firſt place then, he beſtoweth much paines in
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lating exactly how many miles an hour a point of the terreſtrial
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Globe ſituate under the Equinoctial, goeth, and how many miles
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are paſt by other points ſituate in other parallels: and not being
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content with finding out ſuch motions in horary times, he findeth
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them alſo in a minute of an hour; and not contenting himſelf
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with a minute, he findes them alſo in a ſecond minute; yea more,
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he goeth on to ſhew plainly, how many miles a Cannon bullet
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would go in the ſame time, being placed in the concave of the
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nar Orb, ſuppoſing it alſo as big as
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Copernicus
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himſelf repreſenteth
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it, to take away all ſubterfuges from his adverſary. </
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<
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>And having
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made this moſt ingenious and exquiſite ſupputation, he ſheweth,
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that a grave body falling from thence above would conſume more
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than ſix dayes in attaining to the centre of the Earth, to which all
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grave bodies naturally move. </
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<
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>Now if by the abſolute Divine </
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