Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
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of the Peripateticks, who grant (nor can it be denied) that our
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Terreſtrial Globe is,
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de facto,
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a compound of infinite different
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matters; and grant farther that of compound bodies the motion
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ought to be compound: now the motions that admit of
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ſition are the right and circular: For the two right motions, as
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being contrary, are incompatible together, they affirm, that the
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pure Element of Earth is no where to be found; they confeſſe,
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that it never hath been moved with a local motion; and yet they
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will introduce in Nature that body which is not to be found, and
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make it move with that motion which it never exerciſed, nor
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ver ſhall do, and to that body which hath, and ever had a being,
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they deny that motion, which before they granted, ought
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rally to agree therewith.</
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With two right
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motions one cannot
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compoſe circular
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motions.
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Philoſophers are
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forced to confeſſe
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that the Magnet
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is compounded of
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cœleſtial
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ces, and of
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tary.
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The errour of
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thoſe who call the
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Magnet a mixt
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body, and the
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reſtrial Globe
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ſimble body.
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* Ogliopotrida
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a Spaniſh diſh of
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many ingredients
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boild together.
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The Diſcourſes
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of Peripateticks,
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full of errours and
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contradictions.
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>SALV. </
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>I beſeech you,
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Sagredus,
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let us not weary our ſelves
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any more about theſe particulars, and the rather, becauſe you
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know that our purpoſe was not to determine reſolutely, or to
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accept for true, this or that opinion, but only to propoſe for our
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divertiſement ſuch reaſons, and anſwers as may be alledged on
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the one ſide, or on the other; and
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Simplicius
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maketh this
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ſwer, in defence of his Peripateticks, therefore let us leave the
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judgment in ſuſpenſe, and remit the determination into the
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hands of ſuch as are more known than we. </
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<
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>And becauſe I think
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that we have, with ſufficient prolixity, in theſe three dayes,
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courſed upon the Syſteme of the Univerſe, it will now be
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nable, that we proceed to the grand accident, from whence our
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Diſputations took beginning, I mean, of the ebbing and flowing
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of the Sea, the cauſe whereof may, in all probability, be referred
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to the motion of the Earth. </
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<
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>But that, if you ſo pleaſe, we will
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reſerve till to morrow. </
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<
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>In the mean time, that I may not forget
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it, I will ſpeak to one particular, to which I could have wiſhed,
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that
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Gilbert
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had not lent an ear; I mean that of admitting, that
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in caſe a little Sphere of Loadſtone might be exactly librated, it
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would revolve in it ſelf; becauſe there is no reaſon why it ſhould
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do ſo; For if the whole Terreſtrial Globe hath a natural
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ty of revolving about its own centre in twenty four hours, and
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that all its parts ought to have the ſame, I mean, that faculty of
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turning round together with their
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whole,
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about its centre in
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ty four hours; they already have the ſame in effect, whilſt that,
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being upon the Earth, they turn round along with it: And the
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aſſigning them a revolution about their particular centres, would
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be to aſcribe unto them a ſecond motion much different from the
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firſt; for ſo they would have two, namely, the revolving in
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ty four hours about the centre of their
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whole
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; and the turning
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about their own: now this ſecond is arbitrary, nor is there any </
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