rocket knife
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Watch A Knife Attached To A Rocket Going 240km/h Slice The Hell Out Of Meat And Fruit
Video: Now this is some fun times. The Backyard Scientist strapped a kitchen knife to some homemade sugar rockets, put it on a track sprayed with graphite lubricant so it could cut things while zooming down at 240km/h, and then put various sliceable items on the other end to reach their imminent doom (for our infinite…