Korea Joongang Daily on MSN

[TREASURE] Celestial Globe and Armillary Clock

This is an astronomical clock made by Song I-yeong, who was an astronomy professor in 1669 during the reign of King Hyeonjong ...
Hackaday

Tell Time And Predict The Heavens With This Astronomical Timepiece

Looking for a new project, or just want to admire some serious mechanical intricacy? Check out [illusionmanager]’s Astronomical Clock which not only tells time, but shows the the positions of the ...