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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.

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Oil and water don't mix.

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Despite that age-old axiom, it sure is hard to get spilled petroleum out of seawater, as was evident during BP's blowout in the Gulf of Mexico.

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But what if you could make oil magnetic?

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That thought came to physicist Arden Warner while he watched coverage of the spill back in 2010.

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And it launched some garage tinkering for Warner, who by day works on improving particle accelerators at Fermilab.

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He shaved iron bits from a shovel and sprinkled them atop some engine oil.

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Lo and behold, a refrigerator magnet pulled the blob of oil wherever he wanted.

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Now he's got a patent on the concept that he's refined over the past few years.

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The Warner method requires only a relatively small amount of metal dust.

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And the iron particles mix better with oil than with water, or with anything else the oil might get on, like bird feathers or plants.

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Another plus: once the oil is collected, the filings can be dried off and reused.

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And iron is more environmentally friendly than the chemicals currently used to disperse oil.

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So maybe next time there's an oil spill and unfortunately there will be a next time, we can clean up the mess with magnets.

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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.

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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.

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Oil and water don't mix.

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Despite that age-old axiom, it sure is hard to get spilled petroleum out of seawater, as was evident during BP's blowout in the Gulf of Mexico.

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But what if you could make oil magnetic?

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That thought came to physicist Arden Warner while he watched coverage of the spill back in 2010.

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And it launched some garage tinkering for Warner, who by day works on improving particle accelerators at Fermilab.

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He shaved iron bits from a shovel and sprinkled them atop some engine oil.

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Lo and behold, a refrigerator magnet pulled the blob of oil wherever he wanted.

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Now he's got a patent on the concept that he's refined over the past few years.

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The Warner method requires only a relatively small amount of metal dust.

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And the iron particles mix better with oil than with water, or with anything else the oil might get on, like bird feathers or plants.

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Another plus: once the oil is collected, the filings can be dried off and reused.

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And iron is more environmentally friendly than the chemicals currently used to disperse oil.

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So maybe next time there's an oil spill and unfortunately there will be a next time, we can clean up the mess with magnets.

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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.

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