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The genius invented the "Mecanum Wheel"! Why can it move sideways, diagonally, and rotate in place w
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Strong men VS. Strong fish
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Can ice bullets really withstand the high temperature of gunpowder and become invisible after being
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DuRaRaRa!!|Japan's largest Comiket in December 2016-Celty Cosplay_2
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If you often watch videos, you don’t know how terrible the job of a porn appraiser is!
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Why do rock slabs need to be broken manually? #Science #Unzip #Construction #Cool Knowledge
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[Tools] Cutting board artifact, aluminum profile + optical axis linear slide rail to make circular s
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Why does a well spout gas? #Science #StressRelief #Drilling #Well Blowout #FunFacts
Why is the blade of a gantry shear angled? #Science #StressRelief #HeavyMachinery #GantryShear #FunF
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Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #
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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge
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Gear machining: Why only a tiny bit of cutting is required? #Science #Unzip #Machinery #ExtremeComfo
Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief
How sexy is sexy lingerie?
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Why doesn't it hurt when a needle is stuck in my finger?
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Don't pick your belly button after taking a shower
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In case you haven't seen a scallop "walk", SpongeBob SquarePants is not kidding me
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Why do two people need to swing the hammer when forging iron? #Science #Unzip #Ironmaking #Forging #
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What is "scratch holography"? Aim the scratch at the light and something interesting happens!
The ancient navigational tool "Sextant" is still in use today! Do you know how it works?
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