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On Paper, the World's Smoothest Roller Coaster Ride By Inside Science Published July 17, 2010 2:02pm EDT | Updated January 8, 2015 3:28pm EST ...
Build a simple roller coaster, and out of basic materials - paper, sellotape, blu tak. All you need to do is drop a marble down the start of the rollercoaster when the timer reaches 0s and make ...
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