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Gauss cannon
Each iron marble is attracted by a powerful magnet but separated from it by a non-magnetic ball.
Four of these sets are placed in equilibrium inside a lane.
Each iron marble being also atracted by the next magnet.
Crystal marbles
Iron marbles
Neodymium magnets
within long guides ...
We place the marbles in unstable equilibrium
We leave one more iron marble close to the first magnet
it crashes and breaks the equilibrium !
The last marble is shot at full speed.
Iron marbles freed by the impact and attracted by next magnet liberate energy.
Crystal ones bounce several times.