Phys.org
Tuesday, October 27, 2026 at 11:40 PM1 min readVerified Wire
Decoding the loopy physics of hula hooping with high-tech earthquake sensors

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Hula hooping may be literal child's play, but as it turns out, the physics behind the gym-class staple is so complicated that scientists have spent decades trying to understand how the hula hoop defies gravity.
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