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All Spun Up: A Look At Properties Of Rotation

Why do hardboiled eggs spin better than raw ones? How can you engineer faster race car wheels? The key is understanding rotational inertia.

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Physics Secrets for Hula Hooping

In this activity from Science Buddies, kids will create their own hula hoops and investigate how the hoops’ masses affect how they spin. Which do you think will spin better, a heavy hoop or a lighter one?

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