Fabri, Honoré
,
Dialogi physici in quibus de motu terrae disputatur
,
1665
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110
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025/01/114.jpg
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tiæ à puncto maximæ elevationis HD, maximæ depreſſionis DN; igitur
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æſtus nocturnus longè major eſt in loco D, quàm diurnus; immo ſi accipia
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tur punctum B, in eo erit maxima depreſſio aquæ, Luna poſita in G ; ſcilicet
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de meridie, poſita verò in L, de media nocte, diſtabit B à puncto maximæ
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depreſſionis arcu BN; cuncta hæc repugnare videntur obſervationibus, cùm
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æſtus diurnus & nocturnus æquales ſint. </
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Antim.
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<
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id
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s.001281
"> Fateor vnum eſſe ex præcipuis Nodis, qui mihi ſolvendi ſunt,
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qui tamen facilè a me ſolvitur, in hypotheſi facta. </
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<
s
id
="
s.001282
">Nempe dato quod tota
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ſuperficies terreſtris globi ſit aquea, cuncta hæc, vt dicis, ſuccederent; duo
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tamen obſerves, velim; primum eſt, diſtinguendam eſſe aquarum elevatio
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nem, ſeu tumorem, ab earundem rapido curſu; vnum enim ab alio diſtin
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guitur, licèt vnum ex alio conſequatur; vnde fieri poteſt, vt cum minore ele
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vatione ſeu tumore, rapidior curſus conjunctus ſit; & viciſſim minùs rapi
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dus curſus, cum majore elevatione propter loci ſitum: Secundum eſt, versùs
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Polos æſtus ferè ſine legibus ire, quia cum punctum elevationis, quod non
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procul à Polo diſtat brevem circulum,
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diurnũ
">diurnum</
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ſcilicet deſcribat, circa axem
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Mundi, quid mirum, ſi maxima inde aquarum perturbatio naſcatur; & verò
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præſcindendo à vario terrarum ſitu, qui multa variat, versùs Polos, quaſi
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vortex quidam tumentis aquæ, ſpatio 24. horarum min 48. circa polum iret,
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ex quo reverà non modica aquarum perturbatio ſine certa lege ſequere
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tur. </
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<
s
id
="
s.001283
">Sed de hoc infra. </
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<
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id
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s.001284
">Porrò fateor vltro,
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abbr
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præſcindẽdo
">præſcindendo</
expan
>
à diverſo partium ſitu
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& poſito quod tota ſuperficies terreſtris globi aquea eſſet, in puncto D, tu
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morem aquæ altiorem fore de meridie quàm de media nocte, Luna exiſten
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te in Tropico Cancri, contra verò in Tropico Capricorni; immo Luna exi
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ſtente in Cancro de meridie, vel in Capricorno, de media nocte, altiorem
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fore tumorem in D, quàm ſi Luna exiſteret in Æquatore. </
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<
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id
="
s.001285
">Cur verò hoc
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modo
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abbr
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nõ
">non</
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>
fiat, ex diverſo terræ ac maris ſitu & à vario affluentis & refluen
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tis aquæ curſu, variaque illius deflexione, reflexione, inclinatione, contra
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ctione &c. </
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<
s
id
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s.001286
">de quibus infrà, omninò ſequitur. </
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<
s
id
="
s.001287
">Itaque jam mihi ſufficit, hanc
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veram cauſam eſſe prædicti aquarum tumoris & motus, ejuſdemque revo
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lutionis, ad Lunæ motum diurnum ita compoſitę vt Luna in Meridiano exi
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ſtente, ſive ſupra, ſive infra horizontem, præfatus tumor maximus ſit in lo
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cis, ſub eodem Meridiano ſitis: maxima verò ibidem depreſſio, Luna 90.
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gradibus à dicto Meridiano diſtante; ſic enim ſingulis diebus tumor vna
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ferè hora tardiùs accedit; quia talis eſt Lunæ motus, & jam vides, ni fallor,
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Chryſocome, quid ad mirabilem iſtum effectum Luna conferat, & quàm
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providè antè dixerim, Lunam marini æſtus cauſam non eſſe, nec enim re
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verà cauſa eſt, ſed mera occaſio; cauſa verò, inæqualis aëris gravitatio, eo
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modo, quo dixi. </
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<
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id
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s.001288
">Ex qua poſita Luna, ejuſque motu ab ortu in occaſum, ne
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ceſſariò ſequitur æſtus, id eſt, aquarum elevatio & tumor, in dato quolibet
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Oceani puncto; ſuppoſita ſcilicet tota ſuperficie globi aquea, idque bis ſin
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gulis diebus, ſcilicet de meridie, & media nocte Lunari; meridiem autem,
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ſeu mediam noctem Lunarem voco, illud temporis punctum, quo Luna eſt
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in Meridiano, cui prædictus locus ſubeſt; vtrùm verò tumor de meridie Lu
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nari, ſit æqualis tumori de media nocte, jam dictum eſt ſupra; nimirum </
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