Originally Posted by Avles
At risk of going way off topic-- is this really true? I've never heard this explanation before, and it sounds kind of implausible...
well, going off topic is just a matter of time.... so what the heck.
the reason that a slow hard court makes the ball bounce higher, is because the surface has more these tiny 'hills' (if you look under microscope), that provides the ball with a angle to climb up on.
the same applies to the clay surface, the clay particles provide these tiny hills for the ball to climb up on..... plus the little pile that the skidding ball pushes the loose dirt into.... just look at the ball marks.