Ferrofluid - Science as Art

Found a post over at Gizmodo this morning on Ferrofluid, which is basically iron particles suspended in oil, sort of. The magic ingredient is a surfactant (a soapy kind of binder) that keeps the particles from separating from the oil like they normally would when exposed to a strong magnet. The result? A cool, spiky, dancey liquid that I could spend endless hours playing with. Check out the Giz post for an explanatory video and DIY instructions for making your own. link

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