How to make a marble track out of recycled cardboard to create the optical illusion of the ball that defies gravity.
How to make a marble track out of recycled cardboard to create the optical illusion of the ball that defies gravity.
Here is the tutorial for building a particular track of marbles that creates an incredible optical illusion: the balls seem to "go up" the slide of the track, but it is only an effect created by the ingenious assembly of several cardboard strips.
The time we spend at home in this pandemic period has significantly increased, so creating handcrafted toys can be a fun activity for the little ones and who knows… Even for some adults!
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