Odometer cart from the stone rubbing of an Eastern Han dynasty tomb, c. one hundred twenty five Historic Chinese texts explain the mechanical carriage's functions; immediately after one li was traversed, a mechanically driven wood determine struck a drum, and after ten li had been protected, One more wooden determine https://heng36543109.dreamyblogs.com/32006586/the-single-best-strategy-to-use-for-heng365