Jackie Chan, martial arts expert, in Britain to publicize his film the "Big Brawl."
Jackie Chan, martial arts expert, in Britain to publicize his film the "Big Brawl." - 
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It turns out Jackie Chan movies are the key to the solar energy business. Sort of.

Researchers at Northwestern University used the material in a blu-ray disc of Chan's movie "Police Story 3: Supercop" to make solar panels that are 22 percent more efficient than regular ones.

You don't actually need a Jackie Chan movie. Any blu-ray disc will apparently work.

But it's still fun to pretend.

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Follow Lizzie O'Leary at @lizzieohreally