Casati, Paolo, Terra machinis mota : dissertationes geometricae, mechanicae physicae hydrostaticae

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              <s>
                <pb xlink:href="018/01/097.jpg" pagenum="83"/>
              tumuis acerrimus certis terminis circum­
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              ſcribatur. </s>
              <s>Hinc circulus partem hanc aſpe­
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              ctabilem à latente diſpeſcens, Horizontis
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              Phyſici nomine donatus eſt, vt ab eo ſecer­
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              natur Horizonte, qui tellurem in duo hemi­
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              ſphæria ſegregans, quia non oculo, ſed
                <expan abbr="ſolã">ſolam</expan>
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              ratione comprehendi poteſt, Rationalis di­
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              citur. </s>
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            <p type="main">
              <s>Quamuis autem Phyſici Horizontis dia­
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              meter tota intrà terræ craſsitudinem deliteat,
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              quippe quæ recta eſt linea arcui illi ſubtenſa,
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              qui extremis terminis oculi Ortum Occa­
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              ſumque circumſpicientis intercluditur: quia
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              tamen arcus huiuſmodi exiguo diſcriminę
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              quod vix ſub ſenſum ca­
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                <figure id="id.018.01.097.1.jpg" xlink:href="018/01/097/1.jpg" number="22"/>
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              dat, ſubtenſæ rectæ li­
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              neæ longitudinem ſupe­
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              rat; ideò non abs re ar­
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              cus ipſe pro phyſici hori­
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              zontis ſemidiametro in­
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              diſcriminatim vſurpatur;
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              huiuſce ſemiſsis maxi­
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              mam obiecti aſpectabilis
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              diſtantiam metitur. </s>
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              <s>Ex his ſic ille argumentabatur. </s>
              <s>Sit arcus
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                <arrow.to.target n="note40"/>
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              AB menſura diſtantiæ viſus, qui non à rectâ
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              lineâ ſenſibiliter deflectat
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              eſt igitur AB recta
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              perpendiculariter inſiſtens rectæ DC: radius </s>
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