Gassendi, Pierre
,
De proportione qua gravia decidentia accelerantur
,
1646
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ſecundorum poſſet? </
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<
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">Iam igitur, cùm æquum ſit re
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putare lucem Stellarum ſuperare ſua puritate, ſuóque
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ſplendore lucem flammulæ, fuligini craſſæ, fumove
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commiſtæ, multis vicibus: poſtulo dumtaxat, vt ſuperet
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ter, ſi putes flammulam videri, quæ ſit angulo dimidij
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ſecundi; aut ſexies, ſi putes eam ſolùm, quæ ſit ſecundi
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integri. </
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<
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">Nempe exinde efficietur, vt Stella viſibilis ſit,
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quæ vera diametro ſubtendet non angulum modò
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vnius ſecundi, ſed angulum etiam ſextantis ſecundi. </
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vberius non proſequor; ne cauſſeris non poſſe me meis
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figmentis facere finem. </
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<
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">Adnoto tamen; cùm ex iam
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dictis, Stella magnitudinis ſextæ eſſe non debeat Sole
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maior; ecquid-nam dicturus de figmento fuiſſes, ſi
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propoſuiſſem cum Landſbergio Stellam magnitudinis
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ſextæ eſſe vicies quinquies ipſo Orbe magno maiorem?
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</
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<
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">Et ille tamen viſus eſt ſibi ex certis principiis demon
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ſtraſſe omnia: quanquam illud ſaltem non cauit, quod
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circum-radiatio imponit circa magnitudinem veram:
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quodque proinde diameter vna Stellæ magnitudinis
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ſextæ eſt longè minor quinque ſecundis, ſecùs quàm
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ab illo ſuppoſitmu eſt. </
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Hûc accommodari non potuiſſe cauſſam quæ redditur vulgò,
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quare flammæ noctu maiores appareant.
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<
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non probare me commodè figmentum exemplo candelæ,
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ſic
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pergis,
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Quæcùmque enim cauſſa ſit, cur flamma candelæ, ad
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certam præſertim diſtantiam, ſemper auctior appareat: ſatis
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certè tibi conſtat Lunam, ac Martem, ipſumque etiam Solem,
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