February 27, 2012
The spacing of one between two beams is just right for making marble tracks.
Building everything upside down makes for smooth tracks.
A marble picked up in the air has potential energy.
Going down hill it has kinetic energy.
It is possible to get the marble to travel around right angles.
It is nice to have LEGO removers to get those plates apart.
Various ways can be used to elevate each part so the marble moves but not too fast.
