Who is frequently credited with the earliest clear description of a magnetized needle used specifically for direction-finding?

Answer

Shen Kuo

Shen Kuo is attributed for providing the earliest clear documentation of a magnetized needle specifically used for indicating direction, marking a crucial turning point in the instrument's history.

Who is frequently credited with the earliest clear description of a magnetized needle used specifically for direction-finding?
inventionHistorytechnologycompassShen Kuo