Snow can actually be rolled up—how on earth is that possible?

Universe 24 | Could the "dark matter" that has puzzled humanity for 100 years actually be a problem

lilunkexue

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

haoqiwanhuatong

43 Views

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

haoqiwanhuatong

8 Views

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

haoqiwanhuatong

28 Views

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

haoqiwanhuatong

12 Views

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

haoqiwanhuatong

7 Views

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

haoqiwanhuatong

11 Views

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

haoqiwanhuatong

12 Views

Some lawns are dyed green, and others have their turf replaced in patches.

haoqiwanhuatong

12 Views

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

haoqiwanhuatong

13 Views

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

haoqiwanhuatong

24 Views

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

haoqiwanhuatong

27 Views

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

haoqiwanhuatong

12 Views

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

haoqiwanhuatong

22 Views

Why doesn't it hurt when a needle is stuck in my finger?

yaki1

47 Views

The irresistible mechanical series of speed bumps~

jixiepangke

7 Views

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

haoqiwanhuatong

16 Views

Why can firecrackers restore the shape of oil barrels? This is because of the instantaneous pressure

haoqiwanhuatong

9 Views

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

haoqiwanhuatong

15 Views

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

haoqiwanhuatong

9 Views