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

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              <s>
                <pb xlink:href="018/01/109.jpg" pagenum="95"/>
              ſemidiametro, remanet AD ped. 242, alti­
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              tudo, ex qua proſpici poteſt in B ita, vt aſpe­
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              ctui pateant ſtadia 180. Quî autem fieri poſ­
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              ſit ab intuente ſimilem ſemper orbem vide­
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              ri, ſiuè vlteriùs acceſſerit, ſiue retrorſum re­
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              ceſſerit, Macrobius ipſe viderit: an ſemper
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              eam inueniat altitudinem, cui inſiſtat, vt
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              oculus ab extimâ telluris facie pedibus 242
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              ſemoueatur? </s>
              <s>Horizontis igitur ſemidiame­
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              trum aut ſtadijs 180 minorem eſſe, aut non
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              ex humani corporis altitudine definiri ne­
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              ceſſe eſt. </s>
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            <p type="margin">
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              XXXXVI
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              Authorum
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              aliquorum
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              lapſus iņ
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              statuendą
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              nimia viſus
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              distantia.
                <emph.end type="italics"/>
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              <s>Cum verò ille labantem Macrobij ſen­
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              tentiam ſuffulcire aliquatenus ſe poſſe con­
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              ſideret, ſtadia 180 tribuendo non arcui AB,
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              ſed rectæ DB terram tangenti, quæ & radij
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              optici ex oculo D prodeuntis menſura eſt, &
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              arcu AB longior; operam demum ſe ludere
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              ſenſit, cum re ad Geometricam normam
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              reuocatâ tantam opticæ lineæ longitudinem
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              terrenæ magnitudini minimè congruere ma­
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              nifeſtè deprehendit, etiam ſi oculus à terrâ
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              pedum 50. interuallo AD ſeiunctus intelliga­
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              tur. </s>
              <s>Quoniam enim quadratum Tangentis
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              BD, quæ ſtad. </s>
              <s>180 ponitur, æquale eſt re­
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              ctangulo ADE, diuidatur quadratum ped.
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              11664.000000 per 50, & erit DE ped. 233
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              280000, hoc eſt ſtadiorum Græcorum (quæ </s>
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