In the real world, there are no absolute rigid bodies, nor is there perfect unstable equilibrium.

There are blisters on the wall. What caused this?

haoqiwanhuatong

2 Views

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

haoqiwanhuatong

27 Views

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

haoqiwanhuatong

18 Views

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

haoqiwanhuatong

8 Views

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

tanmi

10 Views

2025 JD World Street Dance Finals, Song Haoming, the little brother, relaxed in Paris

yiweiqingxianl

23 Views

Why does steel need to be rolled repeatedly? #Science #Unzip #Rolling #Forging

haoqiwanhuatong

11 Views

【Guang Yuan】When Pei Su fell asleep on the subway

Xiaoyuanlianyaokuaileya

45 Views

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

haoqiwanhuatong

55 Views

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

yaki1

22 Views

My family, we just say that this transformation is so handsome to me.

tahnoatc__01

1.8K Views

108_ Dragon Ball Super: Why does Frieza hate Sai Ajin so much?

xiaoqishuoman1

20 Views

"Nichijou" Sakamoto: It's not me! It's none of my business!

jenna_williams

10 Views

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

haoqiwanhuatong

10 Views

It turns out that a person can really be so sad that he or she has no expression on his or her face.

-liuyuefen_

11 Views

Are the videos we watched fake? Has wild sex education been fooling us all these years?

danzijihe_04

70 Views

Mixed-race sister

litchilizhishu

81 Views

A 90-pound boy tries on women's clothing

nvzhuangzixiaoqi

36 Views

The protagonist of the final episode of the Baki father and son battle arc dies! The drama ends!

dongmantuijian

130 Views

A drop of water kept me awake for three days and three nights...

bideerjiedao

6 Views