The mathematics of stargazing, from René Descartes' 'Discourse on Meteorology', 1637
Conversation
Constellation Libra,15th c edition of Abd ar-Rahman as-Sufi, The Book of Fixed Stars, originally compiled in 964 CE
2
7
15
Replying to
A personification of the Four Winds from a medieval illuminated manuscript
Ptolemy's Handy Tables, 9th C. Map of the Constellations showing the northern part of the zodiac
1
6
13
Show replies
