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2-story maze creates impressive chain reaction

Have you heard of a Rube Goldberg Machine? It’s an extravagant contraption that carries out a simple task. The set up in this video combines that idea with a domino design. The result is a massive chain reaction that seems to go on forever. Follow the purple ball as it makes its way through two stories of tracks.

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Stop robocalls once and for all

Robocalls are not only annoying, but they scam Americans out of millions every year. Learn Kim's tricks for stopping them for good in this handy guide.

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