Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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tra Platonicam ſententiam afferuntur, quæ peruene
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re ad meam notitiam. </
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Cap. 4. poſi
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tiuam leui
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tatem noņ
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dari.</
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<
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">Quòad primum Ariſtoteles inſectatur Democriti,
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Platoniſque poſitionem, ſed more ſuo, non contrą
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ſententias, at contra mera verba eorum argumenta
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tur, ſcilicèt quod terræ grauitas maior, quàm aeris
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pendeat à copia triangulorum, quæ maior in terra,
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quàm in aere exiſtit, aſſumitque prædicta triangula,
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ac ſi eſſent ſuperficies planæ omninò indiuiſibiles,
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quod patet falſum eſſe, cùm in Platonica poſitionę
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atomi triangulares ſint corpora, non autem ſuperfi
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cies indiuiſibiles. </
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Phyſic.lib.4.
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cap.2.</
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maſſam, veluti eſſet ſphæra aerea habens diametrum
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decem cubitorum, habere maiorem copiam, &
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abũ-dantiam
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dantiam</
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pleni, & materiei, quàm exigua pila aquea
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habens diametrum vnius digiti, & proindè pila ae
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rea grauior eſſe deberet, & deorſum deſcendere, &
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è
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cõtrà
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aquea vt leuis ſursùm eleuari deberet. </
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<
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inquam, argumentum non afficit Democritum, qui
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numquam tantam abſurditatem ſomniauit,
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numquã
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enim conſiderauit plenum ſolitarium, ſed vnà cum
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pleno ingentem vacui molem augmentatam in illą
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grandi aerea pila, & ſemper maiori cum proportio
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ne, quàm ſe habeat plenum aeris ad plenum aquæ.
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<
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">Quam exceptionem parùm ſincerè Ariſtoteles ſub ſi
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lentio inuoluit, quoniam exiſtente aere rariore,
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quã
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ſit ipſa aqua, habebit pars vacua ad partem plenam̨
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aeris maiorem proportionem, quàm habet pars va-</
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