Monday, November 7, 2011

New Scientist TV: Spiny ferrofluid performs magnetic ballet

New Scientist TV: Spiny ferrofluid performs magnetic ballet: In this video, ferrofluid spikes take to the floor and perform a magnetised dance. Created by engineer Tatyana Arefyeva at the Ivanovo State Power University in Russia, the spiny ballet exploits the magnetic fields of a ferrofluid. Using a computer program to manipulate these fields, Arefyeva made the substance change shape. The particles align themselves along field lines moving with the magnetic force. When the field is turned off, they return to a random alignment.

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