Benedetti, Giovanni Battista de, Io. Baptistae Benedicti ... Diversarvm specvlationvm mathematicarum, et physicarum liber : quarum seriem sequens pagina indicabit ; [annotated and critiqued by Guidobaldo Del Monte]

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DISPVTATIONES.
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              <p>
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                  <pb o="187" rhead="DISPVTATIONES." n="199" file="0199" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/pageimg/0199"/>
                & in linea
                  <var>.t.x.</var>
                imaginemur punctum fixu@, quod fit
                  <var>.c.</var>
                imaginemur etiam inter
                  <var>.c.</var>
                @.
                  <lb/>
                a. vnam lineam rectam
                  <var>.c.a.</var>
                & inter duas parallelas dictas
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                fixam, & motus punct@i
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                fit ab
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                verfus
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                ita ut
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                fecet
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                in puncto
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                quod interfectionis punctum mo-
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                uebitur ab
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                verfus
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                continuò, in tempore infinito, neque vnquam idem erit cum
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                puncto
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            <div xml:id="echoid-div430" type="section" level="3" n="30">
              <head xml:id="echoid-head301" style="it" xml:space="preserve">Non eſſe ſolis calorem à motu localι ipſius corporis ſolaris,
                <lb/>
              ut Ariſtoteli placuit.</head>
              <head xml:id="echoid-head302" xml:space="preserve">CAP. XXX.</head>
              <p>
                <s xml:id="echoid-s2245" xml:space="preserve">JD nullo planè modo eſt admittendum quod Ariftoteles credidit calorem folis à
                  <lb/>
                motu locali ipſiuſmet corporis folaris, & non à lumine, prouenire, quemadmo-
                  <lb/>
                dum manifeftè aſſerit primo metheororum cap .3. circa finem fic fcribens.</s>
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              <p>
                <s xml:id="echoid-s2246" xml:space="preserve">Vtigitur repor gignatur atque calor, folis latio duntaxat, ſatis eſt eſſicere, & c. ſed
                  <lb/>
                cap .7. lib. 2. de cælo fic ſeribit, Caliditas autem ab ipſis,
                  <reg norm="lumenque" type="simple">lumenq́;</reg>
                ideo fit, quia aer
                  <lb/>
                ab illorum motione fricatur.</s>
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              <p>
                <s xml:id="echoid-s2247" xml:space="preserve">Vbi non folum oftendit fe opinari, quòd motus corporum cœleſtium fit caufa ca
                  <lb/>
                loris, ſed eriam luminis, paulò autem poſt dicit, ſuperiorum autem corporum vnum
                  <lb/>
                quodque fertur in ſphæra, vt ipſa quidem non igniantur. </s>
                <s xml:id="echoid-s2248" xml:space="preserve">Opinio profecto abfur-
                  <lb/>
                da. </s>
                <s xml:id="echoid-s2249" xml:space="preserve">Nam cùm corpus ſolate fixum fit in ſpisfitudine ſui orbis deferentis, fe-
                  <lb/>
                cundum communem opinionem, non mouetur per fe, ſed accidentaliter, cum ſei-
                  <lb/>
                licet fertur à dicto ſuo orbe, vnde fieri poteſt, vt in motu fui orbis, nullum ex
                  <lb/>
                orbibus fuorum deferentium augis fricet, fed fi fricaret, id faceret mediante vno fo
                  <lb/>
                lo puncto, vt cuilibet, aliquantulum in mathematicis verfato patet. </s>
                <s xml:id="echoid-s2250" xml:space="preserve">Quam ob cau
                  <lb/>
                ſam, rationi
                  <reg norm="confentaneum" type="context">cõfentaneum</reg>
                non eſſet credere, quòd tantùm caloris gigneretur. </s>
                <s xml:id="echoid-s2251" xml:space="preserve">Quod
                  <lb/>
                tamen fi posſibile eſſet, quid ergo fricatio ſuperficierum orbis ſui, cum iis, quæ funt
                  <lb/>
                deferentium augis efficeret? </s>
                <s xml:id="echoid-s2252" xml:space="preserve">
                  <reg norm="Quando" type="context">Quãdo</reg>
                tamen hoc fieret, vt ſcilicet à fricatione fuper
                  <lb/>
                ficierum procederet calor, nil planè diferiminis inter hyemen, & æftatem intercede
                  <lb/>
                ret, nec inter calorem diei, & noctis, nec inter unam horam, aut alteram; </s>
                <s xml:id="echoid-s2253" xml:space="preserve">fed fecun-
                  <lb/>
                dum Ariftotelis rationes, Venus,
                  <reg norm="Mercuriusque" type="simple">Mercuriusq́;</reg>
                , magis calefacere quam fol de
                  <reg norm="berent" type="context">berẽt</reg>
                ,
                  <lb/>
                cum ita ſint veloces vt ipſe Sol, & eodem magis propinqua terræ. </s>
                <s xml:id="echoid-s2254" xml:space="preserve">Verum Ari-
                  <lb/>
                ſtotelis
                  <reg norm="temporibus" type="context">tẽporibus</reg>
                ,
                  <reg norm="nullum" type="context">nullũ</reg>
                  <reg norm="alium" type="context">aliũ</reg>
                  <reg norm="planetam" type="context">planetã</reg>
                quam folem
                  <reg norm="putabant" type="context">putabãt</reg>
                philofophi ſupra
                  <reg norm="Lunam" type="context">Lunã</reg>
                eſ-
                  <lb/>
                ſe. </s>
                <s xml:id="echoid-s2255" xml:space="preserve">Atque etiam
                  <reg norm="contigeret" type="context">cõtigeret</reg>
                menfe Decembri, quam Iunio, magis inualeſceret calor,
                  <lb/>
                cum huiuſmodi menſe ſolad nos propius accedat, quam menfe Iunii. per differen-
                  <lb/>
                tiam maiorem diametro regionis elementaris, (nam folaris eccentricitas maior eft
                  <lb/>
                ſemidiametro
                  <reg norm="elementaris" type="context">elemẽtaris</reg>
                regionis) non confiderans Ariftoteles differentiam ca-
                  <lb/>
                loris, quæ naſcitur ex eo,
                  <reg norm="qui" type="simple">ꝗ</reg>
                Sol aut altius ſupra orizontem excurrat, aut infra
                  <reg norm="eundem" type="context">eundẽ</reg>
                  <lb/>
                feratur; </s>
                <s xml:id="echoid-s2256" xml:space="preserve">neque eam, quę à longitudine, aut breuitate diei proficiſcitur. </s>
                <s xml:id="echoid-s2257" xml:space="preserve">Sed quia Ari
                  <lb/>
                ſtoteles eodem cap tertio Metheororum intelligit de motu rapto, ideſt diurno, ſiue
                  <lb/>
                dicamus vniuerfali, hinc ſequi deberet,
                  <reg norm="qui" type="simple">ꝗ</reg>
                Sol maiorem caloris uim menſe Martij &
                  <lb/>
                Septembris, quàm aliis menfibus, profunderet, quia in iiſdem temporibus, ſol virtu
                  <lb/>
                te huiuſmodi motus velocior exiftat, quàm alio quolibet tempore anni, cum tunc
                  <lb/>
                per æquatorem circuũoluatur. </s>
                <s xml:id="echoid-s2258" xml:space="preserve">Multa quoque alia incommoda ſequerentur ſi Ari
                  <lb/>
                ſtorelis rationes admitteremus. </s>
                <s xml:id="echoid-s2259" xml:space="preserve">Sed clarè uidemus, mediante refl exione aut refra-
                  <lb/>
                ctione radiorum folarium,
                  <reg norm="qui" type="simple">ꝗ</reg>
                vniente ſeſe lumine, unitur quoque, & augetur calor,
                  <lb/>
                atque omnis res ad comburendum apta accenditur, & inflammatur. </s>
                <s xml:id="echoid-s2260" xml:space="preserve">In lumine igi- </s>
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