Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 30
a given circle C. Draw a diameter, 1-2^ and,with the radiusof the circle, set off, from i and 2, points j, 4.5, and 6; through these points draw radii, ex-tending them beyond the circle. Bisect thesector 7 ^: J by ^ 7, which intersects the circleat 8. At 8^ by Problem 2, erect a perpendicularand… … Problem 37. — To draw circles tangent to each other and to two lines^ AC and BC, not.parallel, the radius, DE. of ofie circle bei?ig given. Bisect the angle ^C^ by C 7. Drawparallel to AC, and distant from it by theradius of the given circle, a line which, in-tersecting C I at 2, gives the x:entre…
Mechanical drawing
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-319-211.webp)
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