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

Table of figures

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              diculum cadat vltra ſemiſſem lineæ AB;
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              demptus autem ex gr. 30. ſi cadat citrà ſe­
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              miſſem, dabit angulum diſtantiæ à vertice
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              quæſitum. </s>
              <s>Quod ſi diſtantia à vertice exceſ­
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              ſerit gr. 60 perpendiculum cadet extrà latus
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              BE; idcirco ſuſpendendum èrit ex I puncto,
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              quod bifariam diuidit rectam AE; & ſiqui­
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              dem obiectum in Horizonte fuerit, perpen­
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              diculum ex I cadet in B, ſi verò ſupra Hori­
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              zontem, cadet in latus AB, ſi demum infra
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              lineam Horizonti parallelam depreſſum fue­
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              rit, cadet perpendiculum in latus BE: ſem­
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              per autem in noteſcet angulus factus à perpen­
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              diculo & lineâ FI visûs, dantur enim vel la­
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              tera IA & AB, vel IE & EB cum angulo
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              comprehenſo: vel ſaltem in vtroque latere
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              deſignari poterit punctum, in quod ad rectos
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              angulos cadit linea ex I. </s>
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              XXXVIII
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              Vſus Tri­
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              goni æqui­
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              lateri ad
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              obſeruandos
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              angulos, in
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              quo vix er­
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              rari poſsit à
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              Geometra.
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              <s>Vt verò in quàm minimas particulas di­
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              uiſam haberet rectam AB, iubebam duci
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              AC æqualem vni ex ijs partibus, in quas pri­
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              mò diſtinctam eam poſuimus, nempe iņ
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              vncias pedis, & perfici parallelogrammum
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              ABDC. </s>
              <s>Tum diuisâ AC, & BD in quinque
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              æquales partes, & ductis parallelis ipſi AB,
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              inter poſtremas
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              a d
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              & CD ducatur diagona­
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              li; C
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              d
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              ; & diuiſis pariter ſingulis vncijs iņ
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              quinque partes, vt factum hìc eſt in vnciâ </s>
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