Why is it so difficult to rescue someone swept away by a flood? #Science #Popularity #Physics #Flood

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Why can the fountain stone ball rotate? #Popular Science #Unzip #Physics #Fountain Stone Ball #Trivi

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[DIY] I will teach you to make cool bismuth crystal!

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Cars can encounter many troubles in icy and snowy weather. Which ones have you encountered?

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Why not turn off the water when repairing a pipe? This is called pressure plugging. #Science #Unzip

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

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Two mods to make your Minecraft more realistic

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Why do we need to cut a slant on the tree when felling it?

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Why can a hatchet easily chop down a tree as thick as a bowl? #Science #Relief #Hatchet #Logging #Tr

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Why do rock slabs need to be broken manually? #Science #Unzip #Construction #Cool Knowledge

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Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge

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Why are the joints of steel cables so strong? #Science #Unzip #SteelCable #MachineryManufacturing #E

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Why does the bearing emit "hot air" when installing it? This is the interference fit installation me

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Why can you stand on water without sinking? #Science #Relief #Physics #ExtremeSports

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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You don't necessarily have to go to the ocean to surf—surf simulators and artificial wave pools can

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Gear machining: Why only a tiny bit of cutting is required? #Science #Unzip #Machinery #ExtremeComfo

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The snow on the roof looks beautiful, but why do we need to remove it?

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The dog doesn't know the owner has passed away, and spends his life looking for the owner

Wutangjiakafei

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When a rotary drilling rig is used to drill and pile, why is the hole filled with mud?

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