Okay I did not not learn yet. neat vid but after looking at it.at first glance it does look like it rises but the pitcher is on a mound, already elevated his release point must be near his shoulder and the catcher snags it at the top of his helmet while still crouching.looks like flat high heat to me at best.
It is RA Dickey's knuckle ball. I believe with the combo of near no rotation and the right air currents a knuckle ball can actually rise slightly above it's initial trajectory under the right conditions. It also think it is rare and the it more often "dances left, right or down" and while I admit I could be wrong on this I think science backs up the possibility of a rising knuckle ball.
Can Dickey throw heat?
Rising knuckleball concept, that oughta help us converge...We can't even agree on what rise means and you think we can handle this?