Dropper popper Dropper popper

These amazing semi-spheres in rubber seem to break Physics laws by rebounding from the ground higher than from where they had been launched!

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Dropper  Popper

These little semi-balls, different from others because of their physical properties, need for their amazing rebounding a little quantity of the "activation" energy, to trigger the elastic energy accumulated in them by "turning them inside out". Balls' particular shape allows to store the elastic energy and then to turn it into kinetic energy.

These balls come from Australia, so it's not a big surprise if they jump like kangaroos!


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