This Ancient Technology Makes Things Spin Really Fast!
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The Secret Behind the World’s Fastest Card Thrower
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How Many Marbles Does it Take to Charge My Phone?
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The Most Insane Weapon You Never Heard About
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HUGE Magnet VS Copper Sphere - Defying Gravity- Will a Neodymium Magnet Float Inside?
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Magnifying The World's Brightest Flashlight (200,000 Lumens)
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Melting Copper Wire Into a River Table
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I 3D Printed a $1,175 Chair
20:31