Post #3454275

A replica Roman odometer. At the end of each Roman mile, a gear wheel releases a metal or hardwood ball into a box causing a quite loud noise. The balls in the box are counted when the desired point is reached. More information and credits: https://en.wikipedia.org/wiki/File:2012-08-17_Hodometer_anagoria.JPG #History #Rome #Math #Maths #Engineering