Borro, Girolamo
,
De motu gravium et levium
,
1575
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219
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011/01/239.jpg
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<
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abbr
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ſupremã
">ſupremam</
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huius inferioris orbis oram naturaliter non aſcende
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ret, sed violentiam paſſus, nec aqua ſurſum in aeris locum mi
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graret, sed tantum ſi violentia attracta fuiſſet, quod in arti
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ficum symphonibus, nonnumquam fieri videmus, in quibus ae
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ris impetu aqua ſurſum rapitur. </
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<
s
id
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s.001518
">Aqua autem detracta, ter
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ra in ſublime non fertur: propterea quod terra in ſuo natu
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rali, ac proprio loco nullius leuitatis est particeps. </
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<
s
id
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s.001519
">Duo media
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elementa facilius deorſum, quam ſurſum feruntur, ſi inferio
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ra, & ſuperiora auferantur, quod grauitatis plus habeant
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quam leuitatis: immo, vt viſus est aliquando dixiſſe Simpli
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cius, grauia tantum nullo autem modo leuia ſint. </
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s
id
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s.001520
">Verum eſt
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ergo, quod diximus: aeri & aquæ plus ponderis, quam leui
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tatis ineſſe. </
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<
s
id
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s.001521
">Hæc ex Aristoteleo conteſtu paraphrasticè ſcri
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pſimus, nunc ad Auerroem deſcendimus, qui nonnulla argu
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menta his addit, quibus aeri, & aquæ plus grauitatis, quam
<
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leuitatis ineſſe oſtendit.
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type
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type
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Si aer (inquit Auerroes) eſt
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abbr
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tantũ
">tantum</
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>
leuis, res, quæ ex igni,
<
lb
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& aere conflantur, deſcendere nulla ratione poſſent, quod ex
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impressionum ignearum, quæ deorſum feruntur, deſcenſu fal
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ſum eſſe videmus; vt ſunt trabes, faces accenſæ, capræ ſaltan
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tes, stellæ cadentes, & cæteræ metheorologicæ impressiones
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ad igneam naturam pertinentes; non enim propter ignem ſua
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pte natura leuissimum, deſcendunt, ergo propter aerem: ergo
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in aere nonnulla grauitas viget: immo grauitas maior, quam
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leuitas: quando hæc non ſurſum propter leuitatem, sed deor
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ſum propter grauitatem cientur.
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type
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Spiritus etiam animalis ab exuperante elemento aereus, ſi
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aer grauis ſuapte natura non eſſet, ad corporis inferiora
<
expan
abbr
="
mẽ-bra
">mem
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bra</
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>
nutrienda non deſcenderet: at deſcendit: ergo non ter
<
lb
/>
ræ grauitate, quæ in ſpiritu animali non exuperat, sed aeris
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emph.end
type
="
italics
"/>
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