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The delightful Finnish couple behind the Hydraulic Press Channel have returned to the material that first made them go viral—exploding paper. About a year ago, the couple attempted to debunk the idea that any size paper can only be folded seven times, only to have the paper explode, leaving a solid, melted material behind. This time, the paper isn't being folded (they crush a deck of cards and a paperback novel), but they did bring a super high-speed Phantom camera to show the explosion in slow motion.