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Aristarchus of Samos, the ancient Copernicus; a history of Greek astronomy to Aristarchus, together with Aristarchus's Treatise on the sizes and distances of the sun and moon (1913)

Heath, Thomas Little, Sir, 1861-1940 · Oxford, Clarendon press · leaf 218

An illustration from Aristarchus of Samos, the ancient Copernicus; a history of Greek astronomy to Aristarchus, together with Aristarchus's Treatise on the sizes and distances of the sun and moon, 1913, leaf 218
to the plane which bisects the curve longitudinally. Describe, he says, a circle with radius equal to QS, the radius of the small circle described by P (Fig. 6). Then, with the same centre, draw a smaller circle with radius equal to half the sagitta AS. Divide the lesser circle into any number of… … Fig. 9. Fig. 10. number of equal parts as at the points marked OF1) 275745 wee 15 (arranging the points so that those marked o are Opposite one another on a comrnon diameter X_Y, while the numbers go round in the same sense). Draw YY through the centre perpendicular to XX, and through the points of…

Aristarchus, of Samos · Astronomers -- Greece -- Biography · Astronomy, Greek -- History

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