Fastball Reaction Time: Must See Link

I was searching the net, looking for different times related to baseball and softball activities.  I was investigating things like running and throwing times. I came across this really cool site with an interactive activity that simulates reaction time to a major league fastball. It is very simple,  but I wasted atleast 10 minutes of my life before my wife made me stop. Check it out.

http://www.exploratorium.edu/baseball/reactiontime.html