Falling Dominoes

[psi20]

Anyone got any good besides wikipedia ( good meaning simple to read for a simpleton like me, concise and to the point for a simpleton like me, and simple to read for someone with a short-term memory like me) sites regarding factors affecting the physics of falling dominoes? These factors may include but are not limited to: forces, vectors, gravitational potential energy, kinetic energy, momentum, energy conservation, or energy transfer.

 

And, if you have any information pertaining to the physics of falling dominoes, whose surfaces are on parallel planes and are a constant distance away, could you post them here?