As a steel ball rolls down a ramp to collide with three other balls, momentum and energy are conserved.
When a magnetic ball rolls down the same ramp, it launches the other ball completely off the ramp!
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How to Turn Separate Cups of Hot and Cold Water into Electricity!
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A magnet on top of a superconductor levitates and spins in mid air
when liquid nitrogen is poured over it.
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When ferrofluid is brought near a spherical magnet,
spikes form as the magnetite in the liquid aligns with the field lines.
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