Aristarchus of Samos ancient Greek astronomer and mathematician
p, 125
On the Sizes and Distances of the Sun and the Moon (c. 250 BC)
Fragment in Plutarch De facie in orbe lunae, 929b, as quoted in The Riverside Dictionary of Biography (2005), p. 23
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 IX, Chapter II, Sec. 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)
Caspar David Friedrich (1774–1840) Swedish painter
Quote of Friedrich, shortly after his return in 1798; as quoted in C. D. Friedrich by H.W. Grohn; Kindlers Malerei Lexicon, Zurich, 1965, II p. 46; as cited & transl. by Linda Siegel in Caspar David Friedrich and the Age of German Romanticism, Boston Branden Press Publishers, 1978, p. 17
Friedrich's quote is referring to the typical landscape and atmosphere of Denmark, he intensively experienced for four years. In 1798 Friedrich left Copenhagen and returned to Germany, to Dresden
1794 - 1840
“Sun is the reason
And the world it will bloom
‘Cause sun lights the sky
And the sun lights the moon”
Cat Stevens (1948) British singer-songwriter
Sun C79
Song lyrics, Buddha and the Chocolate Box (1974)