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Fun with Ferrofluid

Ferrofluid spikes up when a magnet is near it. The results are quite entertaining and interesting. Click here for another video of Ferrofluid in action! (9,210 views)

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yobiker at 8:21pm Mar 3, 2008 Reply | Quote
what the hell is ferrofluid

Balmoth at 8:41pm Mar 3, 2008 Reply | Quote
I don\'t know but I would like to do a photo work on something like that
Crotalus, Mar 05 08 :09:30 pm
Ferrofluid is a liquid that can be attracted by magnets.

The only application I have ever heard of for it is in high dollar speakers. It is held in place by the magnet and cools the voice coil.

coyotee at 7:34pm Dec 2, 2009 Reply | Quote
Ferrofluid is a liquid which becomes strongly polarised in the presence of a magnetic field. Ferrofluids are colloidal mixtures composed of nanoscale ferromagnetic, or ferrimagnetic, particles suspended in a carrier fluid, usually an organic solvent or water.

They are being used in audio industry, vehicle suspension and to form liquid seals around the spinning drive shafts in hard disks. The rotating shaft is surrounded by magnets. A small amount of ferrofluid, placed in the gap between the magnet and the shaft, will be held in place by its attraction to the magnet. The fluid of magnetic particles forms a barrier which prevents debris from entering the interior of the hard drive.

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