Fabri, Honoré
,
Dialogi physici in quibus de motu terrae disputatur
,
1665
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diſco Lunari apparet projectus in BK; lineæ viſuales BO, SP, KR,
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quas exhibeo parallelas, propter anguli tenuitatem; ſit A in Æquatore,
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Axis BK ſecat Æquatorem ad an
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gulos rectos; ſi verò A ſit in Tro
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pico Cancri, punctum B deprimitur
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in G, & K attollitur in H ; Hinc ante
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depreſſionem macula E videbatur
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in C, igitur vicina margini, N verò
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in L. remota igitur à margine; at
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verò poſt depreſſionem dicti Axis
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Macula E erit in F, ac proinde vide
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bitur in D: igitur recedit à margi
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ne; at verò N erit in M ; igitur vi
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debitur in I; accedit igitur ad mar
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ginem; hæc adeò perſpicua ſunt, vt
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nihil clariùs dici, vel excogitari poſſe
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videatur. </
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<
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">Vnum tamen dubium re
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ſtat de fide ſcilicet Hevelij, cùm non
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defuerit, qui dictam fidem prorſus elevarit, adductis obſervationibus
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omnino contrariis. </
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Antim.
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"> Scio, non defuiſſe; Hevelio tamen adhærendum, eique fi
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dem habendam eſſe, putarem, præſertim cum nonnulla ex iis, quæ con
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tra illum adducuntur, minimè ſubſiſtant; Sed hæc diſcutere non vacat;
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Vt vt ſit, ſuppoſita veritate dictorum Hevelij. </
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<
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">conſtat rationem huius
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librationis à me allatam perſpicuam eſſe; ſi res ſecus ſe habeat, vt mihi,
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Auguſtine, non nocet, ita tibi nullo modo prodeſt. </
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<
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">Sed iam ad alias ratio
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nes veniamus. </
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Chryſoc.
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"> Reſtat, Antime, vt ad alios cœleſtes globos gradum facias, in
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quo lepidiſſimum itineris extatici autorem imitari cuipiam fortè videberis;
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quod neſcio an Copernicanis metuendum ſit. </
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Antim.
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<
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"> Ne timeas, Chryſocome, ſiſtemus gradum in terra, nec de Ve
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nere quidquam aſtruam, niſi quod omnes facilè probare poſſint; Dico
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igitur iuxta Copernicanam hypotheſim, Venerem tam propè ad nos acce
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dere, circa conjunctionem ſcilicet veſpertinam, & tam procul abeſſe,
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circa matutinam, vt eius diameter vna vice ſeptuplo ferè major, quàm
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alia videnda ſit; quod vt in facili Schemate oſtendam. </
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<
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">Sit (
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in ſeq.Fig.
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) Sol in A immobilis; ſit magnus orbis, in quo movetur terrá
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BCDE, ſint diametri BD, CE, ſitque angulus ABC grad 47. & ſuppo
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natur maxima digreſſio Veneris à Sole; ducatur AF perpendicularis in
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BC, & ſub radio AF deſcribatur circulus FGHIK, hic erit orbis Veneris;
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igitur Perigæum Veneris erit in K, poſito quod terra ſit in B; Apogæum
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verò in H cuncta hæc pro conceſſis habeo; licèt Perigæum aliquando
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propiùs accedat ad B, tum quia interdum major eſt Veneris digreſſio; tum
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etiam quia moveri cenſetur in excentrico,; igitur cum ſimul eſt in aphelio
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& Perigæo, propiùs ad B haud dubiè accedit. </
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<
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