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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                    <pb o="270" rhead="IO. BAPT. BENED." n="282" file="0282" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/163127KK/pageimg/0282"/>
                  in alium finem ſit effecta quam ad illuminandam ſuperficiem huius excrementi ip-
                    <lb/>
                  ſius vniuerſi ad vtilitatem hominum, imò, vt rectius dicam,
                    <reg norm="animalium" type="context">animaliũ</reg>
                  . </s>
                  <s xml:id="echoid-s3391" xml:space="preserve">vide etiam
                    <lb/>
                  pag .632. et .633. vbi Ariſtotelem de implendo loco non intellexit, cum citet ſphæ-
                    <lb/>
                  ram, loco pyramidis, & inter .46. et .47. lineas dicat
                    <reg norm="quadratum" type="context">quadratũ</reg>
                  eſſe quid multiplex,
                    <lb/>
                  cum ſit vnicum tantum in ſpecie, quia ſpecies eſt quadrilateri, & quadranguli, ſed
                    <lb/>
                  vbi in .6. linea pag .633. ait.</s>
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                <p>
                  <s xml:id="echoid-s3392" xml:space="preserve">Item hexagonus.</s>
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                <p>
                  <s xml:id="echoid-s3393" xml:space="preserve">Magnum errorem committit, vt etiam cum .12. linea .636. pag. ſcribens.</s>
                </p>
                <p>
                  <s xml:id="echoid-s3394" xml:space="preserve">Pyramis, ſiue planum, ſiue ſolidum, habet acutiſſimum, & in .2. libr. de anima
                    <lb/>
                  pag .215. dicat de die poſſe videri ſtellas in ſpeculo poſito in vaſe aqua pleno, quod
                    <lb/>
                  reuera eſt valde abſurdum. </s>
                  <s xml:id="echoid-s3395" xml:space="preserve">Alios eiuſdem errores tibi non patefacio, quia iam ni-
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                  hil amplius otij mihi eſt, ſed eos tu ipſe perſpicere, & cognoſcere facilè poteris, &
                    <lb/>
                  multò plures quidem, quam putas.</s>
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            <div xml:id="echoid-div531" type="section" level="3" n="10">
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                <head xml:id="echoid-head402" style="it" xml:space="preserve">Cur maius lumen extenuet minus.</head>
                <head xml:id="echoid-head403" xml:space="preserve">PIRRO DE ARZONIS.</head>
                <p>
                  <s xml:id="echoid-s3396" xml:space="preserve">EX tuis literis intellexi id, quod etiam ſine ijs exploratum mihi erat. </s>
                  <s xml:id="echoid-s3397" xml:space="preserve">Sed conce
                    <lb/>
                  do tantum eſſe dicere vbi eſt maius lumen, minus non diſcerni, quantum inter
                    <lb/>
                  diu ſtellas non videri: </s>
                  <s xml:id="echoid-s3398" xml:space="preserve">immo eſt etiam magis vniuerſale, quia idem multis aliis lumi-
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                  nibus, præter ea quæ ſunt ſtellarum, ea ratione contingit, quia ingrediente per pupil-
                    <lb/>
                  lam, tam lumine maiori, quam minori, reflexum ipſius maioris in oculo, in ſitu mino
                    <lb/>
                  ris, efficit, vt ipſum minus confundatur, & diſtingui nequeat, quemadmodum aper-
                    <lb/>
                  te cognoſci poteſt in aliquo cubiculo, cuius parietes dealbati ſint, in quo, vnicum
                    <lb/>
                  tantum ſit exiguum foramen, per quod aliqua lumina reflexa ab obiectis extrinſecis
                    <lb/>
                  intra ipſum cubiculum ingredi poſſint, vnde imagines
                    <reg norm="obiectorum" type="context">obiectorũ</reg>
                  in parietibus con-
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                  ſpiciuntur, ſed ſi per idem foramen ingrederetur etiam primarius radius Solis, re-
                    <lb/>
                  flexus huiuſmodi radij efficeret, vt dictæ imagines, magis aut minus euaneſcerent,
                    <lb/>
                  prout dictus reflexus radij ſolaris, maiori, minoríue vi polleret.</s>
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                <p>
                  <s xml:id="echoid-s3399" xml:space="preserve">Ad hoc tamen propoſitum, nolo tibi ſilentio inuolui mirabilem quendam effe-
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                  ctum eiuſmodi rei. </s>
                  <s xml:id="echoid-s3400" xml:space="preserve">Hoc eſt vt fiat foramen illud rotundum, magnitudinis tamen
                    <lb/>
                  vnius ſpecilli, quod foramen obturetur mediante vno illorum ſpecillorum, quæ pro
                    <lb/>
                  ſenibus (non breuis viſionis) conficiuntur, hoc eſt quorum ambæ ſuperficies con
                    <lb/>
                  uexæ ſunt, non autem concauæ. </s>
                  <s xml:id="echoid-s3401" xml:space="preserve">Deinde opponatur folium album papiri, adeo di
                    <lb/>
                  ſtans à foramine, vt extrinſeca obiecta in eo appareant. </s>
                  <s xml:id="echoid-s3402" xml:space="preserve">Quæ quidem obiecta ſi à
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                  Sole illuſtrata fuerint, tam clara, & diſtincta videbuntur, vt nihil pulchrius dele-
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                    <reg norm="ctabiliusque" type="simple">ctabiliusq́;</reg>
                  videri poterit, inuerſa tamen. </s>
                  <s xml:id="echoid-s3403" xml:space="preserve">Sed ſi ea directa videre voluerimus. </s>
                  <s xml:id="echoid-s3404" xml:space="preserve">hoc
                    <lb/>
                  optimè faciemus, mediante reflexione alicuius ſpeculi plani.</s>
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