Using Magnets To Launch My Roller Coaster (LSM)
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Building an Electric Bike Without Electronics
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Arduino Uno Gets Its BIGGEST Upgrade In 12 Years
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Monster magnet meets monitors...
26:17
Battling 200 RC Airplanes With a Giant Flying Ceiling Fan
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Can You Charge A Phone with Marbles?
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Driving a GOLF CART on TRAIN TRACKS
18:24
This Rare Futuristic eBike is a Total Nightmare
4:47