Descartes, René
,
Renati Des-Cartes principia philosophiae
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dubium eſt, quin eadem materia effluat ex S verſus
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vortices O & C, ac etiam verſus plures, ſed quorum
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nec ſitum, nec magnitudinem, nec numerum definio. </
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Ut neque deſinio, an eadem illa materia ex O & C ſta
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tim revertatur ad K & L, an potiùs digrediatur ad mul
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tos alios vortices, à prinio coelo remotiores, antequam
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circulum ſui motùs abſolvat. </
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LXXI.
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Quae ſit ratio hujus
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diverſitatis. </
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Sed paulò diligentiùs eſt conſiderandum, quomodo
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ipſa moveatur in ſpatio
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d e ſ g
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. </
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quae venit ab A, rectà pergit uſque ad
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d
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, ubi globulis
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ſecundi elementi occurrens illos verſus B propellit;
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eodemque modo alia pars, quae venit à B, rectà pergit
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uſque ad
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ſ
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, ubi occurrit globulis ſecundi elementi,
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quos repellit verſus A. </
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>Et ſtatim tam quae eſt verſus
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d
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,
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quàm quae verſus ſ, reflectitur in omnes partes verſus
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eclipticam
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e g
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, omneſque globulos ſecundi elementi
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circumjacentes aequaliter pellit; ac denique per meatus,
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qui ſunt inter iſtos globulos circa eclipticam
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e g
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,
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verſus M & Y elabitur. </
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mi elementi proprio motu ſic rectà fertur ab A & B
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verſus
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d
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&
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ſ
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, fertur etiam circulariter motu totius vor
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ticis circa axem AB adeò ut ſingula ejus ramenta
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lineas ſpirales, ſive in modum cochleae contortas, deſ
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cribant; quae ſpirales poſtea, cùm ad
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d
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&
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ſ pervene
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runt, inde utrimque reflectuntur verſus eclipticam eg. </
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Et quia ſpatium
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d e ſ g
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majus eſt quàm meatus, per
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quos materia primi elementi in illud ingreditur, vel
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ex ipſo egreditur, idcirco ſemper ibi aliqua ejus ma
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teriae pars manet, corpuſque fluidiſſimum componit,
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quod perpetuà circa axem
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ſ d ſe
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ipſum rotat.
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