Aristarchus of Samos ancient Greek astronomer and mathematician
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)
Source: Infidel (2007), Ch. 3
Aristarchus of Samos ancient Greek astronomer and mathematician
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)
Aristarchus of Samos ancient Greek astronomer and mathematician
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
Vitruvius book De architectura
Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter II, Sec. 5
Anne Brontë book The Tenant of Wildfell Hall
Source: The Tenant of Wildfell Hall (1848), Ch. XXVI : The Guests; Helen Graham
Aristarchus of Samos ancient Greek astronomer and mathematician
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
H.P. Lovecraft (1890–1937) American author
Fiction, The Other Gods (1921)
Context: The moon is dark, and the gods dance in the night; there is terror in the sky, for upon the moon hath sunk an eclipse foretold in no books of men or of earth's gods...' There is unknown magic on Hatheg-Kla, for the screams of the frightened gods have turned to laughter, and the slopes of ice shoot up endlessly into the black heavens whither I am plunging... Hei! Hei! At last! In the dim light I behold the gods of earth!