This comes courtesy of Taylor S:
This is a video about ferrofluid. Ferrofluid is a liquid that becomes
strongly magnetized when exposed to a magnetic fluid. Ferrofluid is composed of
a ferromagnetic solute is dissolved in a solute. The spikey portions are where
the electromagnetic field is the strongest. I love ferrofluid because of the
really cool-looking and interesting shapes it makes when the electromagnetic
field is turned on and off.
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