Can you compete in the Olympics after a sex change? #coldknowledge #popularscience #increaseknowledg

He persisted for 60 years to prove his mother wrong!

youqufenxiangmenglu

0 View

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

haoqiwanhuatong

23 Views

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

yaki1

51 Views

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

haoqiwanhuatong

28 Views

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

haoqiwanhuatong

95 Views

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

haoqiwanhuatong

49 Views

As long as you use the right method, work won't be that tiring.

haoyongwujingongju

40 Views

Car Disassembly Video

haoyongwujingongju

38 Views

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

haoqiwanhuatong

18 Views

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

haoqiwanhuatong

9 Views

Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

21 Views

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

haoqiwanhuatong

30 Views

There are no such things as "useless people" in this world—when properly utilized, everyone is a tre

haoyongwujingongju

30 Views

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

haoqiwanhuatong

25 Views

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

haoqiwanhuatong

12 Views

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

haoqiwanhuatong

10 Views

The first step after a burn is not to go to the hospital immediately!

danzijihe_04

64 Views

Introduction to Traditional Group Farming Culture in Africa

yaki1

16 Views

When talking about her father, Liu Yifei's eyes welled up with tears. Although her parents are divor

xiaofuji___i

13 Views

The Land of Light, Caoxian—actually, this world can't do without you.

jiluchuanboju

9 Views