The Curious History of Your ÃÛÑ¿´«Ã½ - Clocks - ÃÛÑ¿´«Ã½ Sounds

The Curious History of Your ÃÛÑ¿´«Ã½ - Clocks - ÃÛÑ¿´«Ã½ Sounds
Clocks
The most elaborate clock the world has ever seen is constructed in 11th-century China.
The most elaborate clock the world has ever seen is constructed in 11th-century China.