'By the 12th century, the Chinese had harnessed magnetism & were using this device'
compass
MEDIEVAL TIMES: By the 12th century, the Chinese had harnessed magnetism & were using this device
By the 12th century, the Chinese had harnessed magnetism & were using this device
By the 12th century, the Chinese had harnessed magnetism & were using this device
MEDIEVAL TIMES
compass
MEDIEVAL TIMES