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How oil spills could be cleaned up with magnets - video
The Guardian
Sept. 12, 2012
Researchers at Massachusetts Institute of Technology (MIT) have developed a new technique for magnetically separating oil and water. Here, they explain how their technique, which uses nanoparticles that turn the oil into magnetic ferrofluids, could recover spilled oil for use and offset clean-up costs
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http://www.guardian.co.uk/environment/video/2012/sep/12/oil-spills-cleaned-magnets-video