2 ms·
http://en.wikipedia.org/wiki/The_Crystal_Spheres http://en.wikipedia.org/wiki/The_Crystal_Spheres
by gojomo 14y ago
http://en.wikipedia.org/wiki/The_Crystal_Spheres http://en.wikipedia.org/wiki/The_Crystal_Spheres
- richeyrw 14y agoThanks!
- jlgreco 14y agoReminds me of the "celestial spheres" model of the universe where heavenly bodies (orbiting the earth of course) were "held up" because they were embedded into a sort of matryoshka series of crystal spheres made of a supposed 5th element, a solid æther. Of course this model did little to explain retrograde motion.. ;)