Max and Jimmy want to jump on a trampoline. Max begins jumping in a steady pattern, making small waves in the trampoline. Jimmy starts jumping on the trampoline too. Suddenly, Max goes twice as high even though he did not put any extra effort into jumping.

Explanation:

This tends to happen a lot when more than one individual is jumping on a trampoline at the same time and is socially known as a "super jump". This happens because of the first individual jumps and lands on the mat of the trampoline which pushes down and generates a certain amount of potential energy into the springs of the trampoline. The second individual then lands on this mat and adds to that potential energy even more. When no more energy is being added the springs shoot up and push the individuals on it much higher the more energy that has been stored.

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