The wisdom of the working people! Using the principle of leverage to pull out a tree stump. #Science

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hetongxuegongzuoshi

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What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

haoqiwanhuatong

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

haoqiwanhuatong

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Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

haoqiwanhuatong

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

haoqiwanhuatong

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Why not use a high-pressure water gun to wash your car? #Science #Unzip #High-pressureWaterGun #CarW

haoqiwanhuatong

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

haoqiwanhuatong

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How are the patterns painted on ceramics? #Science #StressRelief #Pottery #LearnSomethingNew

haoqiwanhuatong

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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

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Why does steel slag when forging iron? #Science #Unzip #Forging #ExtremeComfort

haoqiwanhuatong

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Why did the steel fly so high in the flying steel accident? #Science #Unzip #RollingSteel #FlyingSte

haoqiwanhuatong

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Why do we cut trees at height? Will there be accidents? #高空伐木 #解压 #科普

haoqiwanhuatong

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

haoqiwanhuatong

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Why can loose sand be made into sand sculptures after mixing with water?

haoqiwanhuatong

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Why do we need to stretch the syrup repeatedly when making handmade candies? This step is actually c

haoqiwanhuatong

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Can cliff skiing cause an avalanche? #Science #Unwind #CliffSkiing #Avalanche #Trivia

haoqiwanhuatong

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How are mooring ropes secured? #Science #Unzip #MooringRopes #Ship

haoqiwanhuatong

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

haoqiwanhuatong

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Super cool mechanical series of speed bumps!

jixiepangke

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

haoqiwanhuatong

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