Fabri, Honoré
,
Dialogi physici in quibus de motu terrae disputatur
,
1665
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explicentur nondum ſtatui poſſe, riſi plures & magis accuratæ Obſerva
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tiones fiant. </
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<
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id
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">Porrò cum Venus proximè ad terram accedat, & circa hori-
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zontem vt plurimum Obſervetur, non eſt dubium, quin refractio eius La
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titudinem non parum mutet, ac proinde valde difficile ſit, certam regu
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lam ex Obſervationibus, quæ tot fallaciis oculorum ſubjiciuntur ſtatuere;
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ſed ne ſim prolixior, & ſaltem extra chorum, hæc omitto, cùm manifeſtè
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conſtet, in qualibet hypotheſi ; hæc valde difficilè explicari; in ea tamen,
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quam indicavi longè faciliùs. </
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<
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id
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">De Mercurio nihil dico, quia eadem pro
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illo faciunt, quæ de Venere diximus, niſi quòd ſuas revolutiones citiùs
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abſolvit, minuſque digreditur à Sole, quàm Venus; ac proinde illius Ob
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ſervationes longè difficiliores. </
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<
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id
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">De diverſis phaſibus horum Planetarum
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nihil etiam dico; quia non dubitas; opinor, quin facillimè citra veſtram
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hypotheſim explicentur: quare his peractis, vide quæſo, vtrùm alia pro
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tua hypotheſi ſuppetant argumenta. </
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Auguſtin.
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<
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id
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"> Omiſſis Aſtronomis, quæ haud dubiè ſatis feliciter ſolviſti,
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alia duo ſunt, quæ magnum noſtræ hypotheſi plauſum pepererunt, pri
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mùm petitur à maris æſtu, alterum à Magnete: quod ad primum ſpectat,
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ſupponimus, Terram moveri motu quodam mixto ex motu orbis & cen
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tri, quaſi ad inſtar rotæ in plano, vt iam ſupra inſinuaſti, ac proinde par
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tes illius inæquali motu ferri, alias tardiùs, alias velociùs. </
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<
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id
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s.000347
">Suppono præ
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tereà aquam in vaſe, ſeu cymba vectam, vbi cymba motum remittit, ex
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currere versùs illam partem, in quam cymba tendit; in oppoſitam verò,
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vbi cymba motum accelerat, cogita quæſo aquam Occani, quaſi in vaſtiſ
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ſima concha, à Globo Terræ delatam & circumactam, ſed dicto motu
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inæquali, haud dubiè vbi motus acceleratur, aqua versù; Occaſum ex
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currit, vbi remittitur, versùs Ortum: En tibi germanam cauſam æſtus
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marini, quæ certè, vt cum noſtra hypotheſi optimè conſentit, ita in aliis
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explicari non poteſt. </
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Antim.
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<
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id
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"> Negare non poſſum, quin hoc fuerit ingenioſum inventum,
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fictum tamen & commentitium. </
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<
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id
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">Primo enim ita æſtus diurnus ſuas pe
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riodos metitur, vt ad motum Lunæ dumtaxat, diurnum ſcilicet, non
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Solis aut Terræ ſeſe componat; nam ſummi æſtus, vel ſummæ aquarum
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elevationis terminus eſt Luna meridiana, tum in hoc, tum in oppoſito
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hemiſphærio; principium verò eſt eadem Luna, Quadrante circuli di
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ſtans à Meridiano: Igitur Luna exiſtente in Meridiano, æſtus creſcere
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deſinit, decreſcere incipit, remota vero Quadrante circuli à Meridiano,
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hinc inde æſtus decreſcere deſinit, & creſcere incipit: rem ita fieri per
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ſe conſtantiſſimum eſt, habeturque ex indubitatis Obſervationibus; licèt
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autem per accidens fieri poſſit, vt crementum decremento inæquale ſit;
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hoc tamen non obſtat, quin poſtero die dementum incipiat eadem hora
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Lunari, ac proinde 48. minutis tardiùs, quàm pridie. </
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<
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">Quid autem ad
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hæc, Auguſtine mi, Terræ motus conferat, nemo capiat; cùm enim ea
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dem motus inæqualitas, eadem ſemper hora, eidem Æquatoris terreſtris
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globi puncto inſit, idem ſemper effectus ex eadem inæqualitate, ea
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dem hora ſequi deberet: igitur eadem hora ſemper eſſet ſummum cre-</
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