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you might be surprised to learn what's true
Fascinating physics inspires hours of play
rolling pin
the book includes back matter with information on the events
LEGO Gravity Drop Brainteaser you might be surprised toBuild gravity defying thrills that will leave you on the edge of your seat! Assemble a high quality foot and a half tall chipboard gravity drop tower full of LEGO contraptions. Unleash a pack of 6 wood balls from the starting gate and watch them race through a maze of twists and turns, sliding down ramps, flipping spinners, and whirling down a funnel, before they finally plonk into their destined buckets. (All included right out of the box!) But it
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