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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As the magnaprobe is brought close to a magnet,
it will align with the magnetic field.
The Wimshurst Machine produces sparks by means of electrostatic induction.
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