Biancani, Giuseppe, Aristotelis loca mathematica, 1615

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              <s id="s.001713">
                <pb pagenum="95" xlink:href="009/01/095.jpg"/>
                <emph type="italics"/>
              quidam lac eſſe reflexionem noſtri viſus ad Solem; ſicut & ſtellam comatam; im­
                <lb/>
              poſſibile autem eſt & hoc, ſi enim videns quieuerit & ſpeculum, & quod videtur
                <lb/>
              omne in eodem puncto ſpeculi eadem apparebit
                <expan abbr="vtiq;">vtique</expan>
              pars imaginis, ſi autem mo­
                <lb/>
              ueatur ſpeculum, & quod videtur, in eadem quidem diſtantia ad videns, & quie­
                <lb/>
              ſcens; ad inuicem autem
                <expan abbr="neq;">neque</expan>
              æquè velociter,
                <expan abbr="neq;">neque</expan>
              in eadem ſemper diſtantia im­
                <lb/>
              poſſibile eandem imaginem in eadem eſſe parte ſpeculi. </s>
              <s id="s.001714">Quæ autem in lactis circu­
                <lb/>
              lo feruntur aſtra, & Sol, ad quem fit reflexio, mouentur manentibus nobis, & ſi­
                <lb/>
              militer, & æqualiter ad nos diſtantia; à ſe ipſis autem non æqualiter: aliquando
                <lb/>
              enim medijs noctibus Delphin oritur, aliquando verò diluculo. </s>
              <s id="s.001715">partes autem lactis
                <lb/>
              eædem manent in vnoquoque; atqui non oportebat, ſi erat imago, ſed non in eiſdem
                <lb/>
              adhuc eſſet hæc paſſio locis)
                <emph.end type="italics"/>
              in his Ariſt. confutat opinionem dicentium Gala­
                <lb/>
              xiam apparere per quandam reflexionem viſus noſtri ab illa parte cęli, ceu,
                <lb/>
              ex quodam ſpeculo ad Solem: probat autem hoc eſſe impoſſibile ratione
                <lb/>
              deſumpta ex parte Optices, quæ dicitur Catoptrica, ſiue ſpecularia, quia
                <lb/>
              tractat de viſione reflexa, quæ fit mediante ſpeculo, quam quidem rationem
                <lb/>
              ſi vellem mathematicè explicare, longa nimis, ac præter inſtitutum fieret
                <lb/>
              tractatio. </s>
              <s id="s.001716">Pauca tamen addam, quæ Ariſtotelis
                <expan abbr="ſentẽtiam">ſententiam</expan>
              ſatis perſpicuam
                <lb/>
              reddant. </s>
              <s id="s.001717">ſi igitur inquit, Galaxia nihil aliud eſſet quàm reflexio noſtri viſus
                <lb/>
              ex illa cœli parte, in qua ipſa apparet tanquam ex ſpeculo ad Solem, ita vt
                <lb/>
              nihil aliud ipſa eſſet, quàm Sol viſus per reflexionem ex illa cœli parte tan­
                <lb/>
              quam ſpeculo; ſequeretur eam non ſemper in eadem cœli parte apparere,
                <lb/>
              ſed modo in vna, modo in alia, ita vt ſpatio vnius anni totum cœlum perua­
                <lb/>
              garetur: quod tamen non accidit. </s>
              <s id="s.001718">quod autem illud conſequatur manife­
                <lb/>
              ſtum eſſe poteſt ex obſeruatione eorum, quæ ex ſpeculis videntur: tunc enim
                <lb/>
              res per ſpe culum viſa in eadem ſpeculi parte apparet, quando & videns, &
                <lb/>
              ſpeculum, & obiectum immota manent: quod ſi & ſpeculum, & obiectum ad
                <lb/>
              inuicem accedant, vel recedant, ſeruata tamen eadem ab inſpectore diſtan­
                <lb/>
              tia, nullo modo fieri poteſt, vt eadem imago, in eadem ſpeculi parte ſpe­
                <lb/>
              ctanti videatur, niſi obiectum ſpeculo per eandem lineam accedat, ſecun­
                <lb/>
              dum quam illi incidebat. </s>
              <s id="s.001719">At verò partibus illis lactei circuli, ſiue aſtris, quæ
                <lb/>
              in eo fulgent, Sol perpetuò accedit, vel recedit,
                <expan abbr="neq;">neque</expan>
              per lineam incidentiæ
                <lb/>
                <expan abbr="eãdem">eandem</expan>
              , ſeruata tamen eadem à nobis diſtantia, quod quidem inde patet, quia
                <lb/>
              Delphini conſtellatio, qui in ipſo ferè lacte exiſtit,
                <expan abbr="aliquãdo">aliquando</expan>
              medijs noctibus,
                <lb/>
              aliquando verò mane, aliquando etiam veſperi oritur; quod inde accidit,
                <lb/>
              quia illi Sol modò appropinquat, modò coniungitur, modò ab eo recedit,
                <lb/>
              quare neceſſe eſſet, vt lacteus orbis, non ſemper in ijſdem locis, ſed perpe­
                <lb/>
              tuò in alijs,
                <expan abbr="atq;">atque</expan>
              alijs cerneretur, cuius tamen contrarium videmus. </s>
              <s id="s.001720">ex qui­
                <lb/>
              bus conſtat falſam omninò eſſe eorum ſententiam, qui Galaxiam per huiuſ­
                <lb/>
              modi reflexionem fieri opinabantur. </s>
              <s id="s.001721">Quæ dicta ſunt de ſpeculo, & obiecto
                <lb/>
              ſatius eſt aſſumpto aliquo ſpeculo experiri, quàm ea pluribus obſcurare: qua
                <lb/>
              etiam experientia Ariſt. ratio confirmabitur.</s>
            </p>
            <p type="main">
              <s id="s.001722">
                <arrow.to.target n="marg139"/>
              </s>
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            <p type="margin">
              <s id="s.001723">
                <margin.target id="marg139"/>
              139</s>
            </p>
            <p type="main">
              <s id="s.001724">Ibidem
                <emph type="italics"/>
              (Quæ autem in lactis cir culo feruntur astra, & Sol, ad quem fit refle­
                <lb/>
              xio, mouentur manentibus nobis, & ſimiliter, & æqualiter ad nos diſtantia à ſe
                <lb/>
              ipſis autem non æqualiter)
                <emph.end type="italics"/>
              quæ hic ab Ariſtotele dicuntur
                <expan abbr="nõ">non</expan>
              ſunt vſque quaque
                <lb/>
              vera propter apogæum, ac perigæum Solis, quæ quidem duo ab omnibus
                <lb/>
              aſtronomis aſſeruatur: quando igitur Sol eſt in apogæo, maiori multo </s>
            </p>
          </chap>
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