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, Aristarchus, of Samos. On the sizes and distances of the sun and moon. English & Greek. 1913 · Oxford : Clarendon press · leaf 376
dark and the bright portionsin the moon when the cone comprehending both the sun and themoon has its vertex at our eye; 1 The promised Lemma (the equivalent of which is stated, rather than proved,in Euclids Optics, 24) does not appear. Some of the MSS. have a scholiumcontaining a rather clumsy… … Fig. 20. is, and if AH, AL be the pair of tangents from A, and PM, PO the pair oftangents from P, then MO > HL. By Eucl. vi. 8 and 17, CM2 = CT. CP, and CH2 = CS.CA; thereforeCT. CP=CS.CA, or CA:CP = CT: CS. But CA < CP; therefore CT < CS,so that the chord HL is less than the chord MO. 364…
Aristarchus, of Samos · Astronomy, Greek · Astronomers
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