Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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inertia reſiſtit impulſui impellentis corporis leuis A;
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ergò ex
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ſtratis in libro de vi percuſſionis
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vis motiua leuitatis ipſius A communicatur, &
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ditur</
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per vniuerſum corpus motum, ſcilicèt per flui
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dum B, igitur eius impetus D valdè debilitatur re
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tardaturque, ſitque diminuta velocitas E, qua ni
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mirùm lignum leue A, & fluidum B mouentur. </
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ratione ſit F velocitas retardata, qua idem lignum̨
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A nec non moles hydrargyri C ſibi æquali agitatur.
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gnum aſcendit per aquam maior ſit velocitate F quà
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lignum per mercurium eleuatur, & habere veloci
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tatem E ad F reciprocè ferè eamdem proportionem,
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quam habet corporea ſubſtantia
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AC ad corpulentiam AB. </
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eadem virtute motiua impelluntur
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duo corpora A, & B à qua priùs in
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telligebatur moueri ſingularis maſ
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ſa lignea A cui naturalis gradus
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impetus D conueniebat, igitur mo
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les corporea, & materialis duorum
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corporum ſimul ſumptorum A & B
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ad molem corpoream A reciprocè
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eamdem proportionem habebit, quam eorum ve
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locitates
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, & ideò
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vt D ad E. </
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<
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cinio vt moles corporea A ad molem corpoream AC
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ita eſt velocitas F ad D, ergo ex æqualitate pertur
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bata corporea ſubſtantia AB, ad AC eamdem pro
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portionem habebit, quàm velocitas F ad E, eſt quę </
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