
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
Note "is less than a quadrant..." is less than 90° by l/30th of 90° or 3°, and is therefore equal to 87°.
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
Variant: Proposition 17. The diameter of the earth is to the diameter of the moon in a ratio greater than that which 108 has to 43, but less than that which 60 has to 19.