Post-prandial walk down Dublin street. The road surface is a composition of many materials, oyster shells, Portland cement, river gravel, asphalt, crushed rock, sand, tar. The patches are numerous, their levels and texture vary. The street is one continuous speed bump. It works ok for a biped or vehicles moving slowly. The final result is a street where vehicles seem to be aware of pedestrians and bicycle traffic. I haven’t seen anyone driving and texting simultaneously.
used to wave my fingers in front of my face to stop the ceiling fan blades. This video from Canon G-10 does one better with the Dash 8 300