Why is snow in the south heavier than in the north? That's because there are dry snow and wet snow.

What kind of country is Mongolia?

tuzishizuilihaide

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Why do we need to install a wellbore when digging a well? #Science #Unzip #IncreaseKnowledge #Diggin

haoqiwanhuatong

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Why does a well spout gas? #Science #StressRelief #Drilling #Well Blowout #FunFacts

haoqiwanhuatong

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

haoqiwanhuatong

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

haoqiwanhuatong

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

haoqiwanhuatong

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They say diamonds are forever, but they can be burned and broken.

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

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

haoqiwanhuatong

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Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe

haoqiwanhuatong

34 Views

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

haoqiwanhuatong

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

haoqiwanhuatong

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Why should you clean your car's exhaust pipe? #Science #Unzip #Car #Cleaning #Trivia

haoqiwanhuatong

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“This is the world described in geography textbooks”

エレメンタリスト_01

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

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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Why do honey collectors only harvest a small portion of the hive when harvesting honey at high altit

haoqiwanhuatong

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Why do two people need to swing the hammer when forging iron? #Science #Unzip #Ironmaking #Forging #

haoqiwanhuatong

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