It’s a Marble Tsunami! This huge marble run machine or knikkerbaan has more than 11,000 marbles rolling, sliding, zigzagging, hitting bells, and clacking endlessly into each other, making quite a cacophony. With four paths and four tipping containers, the Marble Tsunami debuted in June 2015 at Monkey Town Indoor Playground in Gouda, The Netherlands.Paul Grundbacher’s wooden marble machines, a collection of homemade Pitagora Suichi (Pythagora Switch) devices, and Andrew Gatt’s DIY Paper Rollercoasters for the classroom and at home.
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