credit: @ Ferrofluid being added to a bolt with a magnet under it. A ferrofluid is a liquid, with nanoparticles of a magnetic iron compound suspended in it. The particles are small enough (and stabilized), which allows them to react to a magnetic field without separating. Note: this is commercial fluid. I did not make it myself. #nilered #science #chemistry #physics #ferrofluid #magnetic #experiment
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