Noun
The hairy or feathery appendage of the achenes of thistles, dandelions, and most other plants of the order Compositae; also, the scales, awns, or bristles which represent the calyx in other plants of the same order.
Source: Webster's dictionaryAccording to Pappus, "Apollonius, having completed Euclid's four books of conics and added four others, handed down eight volumes of conics." Source: Internet
According to Pappus, he found a least distance of 62, a mean of 67+1/3, and consequently a greatest distance of 72+2/3 Earth radii. Source: Internet
Heath (1981), p. 357 The few historical references to Euclid were written centuries after he lived by Proclus c. 450 AD and Pappus of Alexandria c. 320 AD. Source: Internet
There had been some early work in this area by Hellenistic geometers, notably Pappus (c. 340). Source: Internet
In any case, according to Pappus, Hipparchus found that the least distance is 71 (from this eclipse), and the greatest 81 Earth radii. Source: Internet
Pappus of Alexandria described it (in his commentary on the Almagest of that chapter), as did Proclus (Hypotyposis IV). Source: Internet