As a child I was fascinated by the steam rollers used for making roads.
Speed was very slow when they travelled to where ever they were needed.
The driver was always turning wheels which seemed to control the forward and backward movement. Image every few feet travelling backward then going forward. Strange thing was they did not belch out smoke or vent steam. (Perhaps I did notice it)
Speed was very slow when they travelled to where ever they were needed.
The driver was always turning wheels which seemed to control the forward and backward movement. Image every few feet travelling backward then going forward. Strange thing was they did not belch out smoke or vent steam. (Perhaps I did notice it)