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How Things Work – Yoyo - YouTube
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How Things Work – Yoyo - YouTube
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Yo-yo - Wikipedia
How Things Work – Yoyo - YouTube
How do yo-yos work? | Who invented yo-yos? | Kinetic and potential energy, Potential energy, Science lessons
Yo-yo World Trick Book - By Harry Baier (paperback) : Target
newtonian mechanics - Why does a Yo-Yo sleep, and then awaken? - Physics Stack Exchange
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Yo-yo - Wikipedia
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Valley yo-yo by Good Life Yo-Yos – YoYoExpert
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Bind Theory - What Makes Yoyo Binds Work? - YoYoTricks.com
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Re: Physics of Yo Yos
