Perimeter wire is better than GPS RTK. (IndyMower #2)
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DIY Robot Mower - Complete Redesign (IndyMower #3)
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My New Satellite Can Take Your Selfie From Space
20:47
How Physicists Broke the Solar Efficiency Record
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Gearless Magnet Bike
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DIY Laser Image Projector (100ft+ Range!)
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Contractors Hate Me For Showing You This!
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I bought a container full of Chinese electric construction equipment!
12:11