The complex dynamics of people and balls bouncing on a trampoline

Here is a webpage with a number of videos, both experiments and matlab animations, of balls and people bouncing on a trampoline. Also, links to a paper in PLOS ONE.

http://movement.osu.edu/webpages_for_papers/seatdropwar2013.html

The interesting phenomenon is that when two balls are in simultaneous contact with each other, there is a dramatic energy transfer from one ball to the other.

Here is an article in Popular Science about the phenomenon:

http://www.popsci.com/article/science/how-win-trampoline-war-according-s...