Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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qualis eſt illa, quæ in magnete, & magneticis corpo
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ribus obſeruatur. </
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<
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">Sed hæc inferiùs refellentur. </
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<
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id
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s.001730
">alij
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poſtea recurrunt ad figuras hamatas, & vncinatas
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corporum gluten componentium. </
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<
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id
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">Sed meo iudicio
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videntur huiuſmodi curuitates, & vncinos per ſę
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minimè viſcoſitatem efficere poſſe, quia poſtquam̨
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actu vncini, & hami illi diſſoluti, & disiuncti ſunt,
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nullam vim haberent ſe ſe denuò
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recolligẽdi
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, & vni
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endi; poſſet profectò hoc effici ſi prædictę hamatæ fi
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guræ eſſent flexibiles, & reſilientes, vt machinæ, &
<
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arcus, qui poſtquam diſtracti ſunt, vim habent ſe
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abbr
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cõ-trahendi
">con
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trahendi</
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>
. </
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<
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">Quod verò particulæ fluidi machinæ na
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/>
turam participent, confirmatur ex eo, quòd fluidą,
<
lb
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quæ rigida, & dura reddi poſſunt, poſt refrigeratio
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lb
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nem flecti poſtea, & reſilire, & dirigi
<
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abbr
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ſpõte
">ſponte</
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videmus,
<
lb
/>
cum ſumuntur graciles laminæ prædicti corporis in
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durati, vt patet in glacie, vitro, ferro, &c. </
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<
s
id
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s.001733
">Quòdque
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præterea veriſimilis ſit prædicta poſitio machinula
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rum in fluidis, patet exemplo aeris, qui reuerà com
<
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/>
ponitur ex particulis
<
expan
abbr
="
reſiliẽtibus
">reſilientibus</
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>
ad modum machi
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/>
næ, vt ſuperiùs oſtenſum eſt, igitur non erit impoſſi
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bile, vt eamdem naturam fluida denſiora
<
expan
abbr
="
participẽt
">participent</
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>
,
<
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/>
ſcilicèt conſtent ex ijſdem machinulis, alitèr tameņ
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efformatis, quàm in aere. </
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<
s
id
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">Verum tamen eſt, quòd
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prædictæ machinulæ in aqua, & ſimilibus fluidis de
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/>
bent eſſe valdè ſuperficiales, veluti lanugo quædam
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/>
tenuis, & debilis inueſtiens quodlibet aquæ mini
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/>
mum, ſcilicèt concipi debet interna, & indiuiduą
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quælibet aquæ particula ſolida, & dura, cuius figura </
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