Still further back in history, around 4600 years ago, the Yellow Emperor vanquished Chi You in a battle fought in thick fog, thanks to his own direction-finding invention, the "South pointing Chariot."
王湔說，再往前看，四千六百年前，黃帝蚩尤大戰，黃帝發明指南車，得以在大霧中指引方向，而大敗蚩尤。