Odometer cart from a stone rubbing of an Jap Han dynasty tomb, c. 125 Ancient Chinese texts describe the mechanical carriage's features; after 1 li was traversed, a mechanically driven wood determine struck a drum, and just after 10 li had been lined, A further picket figure struck a gong https://wm5576430.59bloggers.com/32081887/heng365-fundamentals-explained