Quotes · Quote card
Quotation from On the Heavens by Aristotle
“in eclipses the outline is always curved”
On the Heavens, Book II, Part 14, trans. J. L. Stocks (1922)
The first observational proof that the earth is spherical: whatever the moon's phase, the earth's shadow on it during an eclipse always has a curved edge.
Citation: "in eclipses the outline is always curved" — Aristotle, On the Heavens, Book II, Part 14, trans. J. L. Stocks (1922). (id aristotle-on-the-heavens-q3)
