When there is a fire in a building, why can't firefighters just spray water into the windows?

Universe 14︱If heavy elements are synthesized from hydrogen, then where did the original hydrogen co

lilunkexue

1 View

How to make a Poo-Po-Po boat for Sosuke and Ponyo?

lilunkexue

46 Views

Salute! Collection of firefighters

MihuojunV

9.6K Views

The foreigner's giant plow tractor actually has a cab from the last century!

haoqimiaomiaomiaody

9 Views

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

tanmi

17 Views

How can the national flag be obscured? Ding Junhui's move won praises from countless people!

Chenbaming

48 Views

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

haoqiwanhuatong

23 Views

I burst into tears! If you want to take revenge, go take Song Yan's life, okay! Huang Jingyu really

yinzichaoai____ang

238 Views

What kind of wisdom did the ancients have to design such a sophisticated mechanism?

haoyongwujingongju

22 Views

【HISHE】Jurassic Park Parody 1

jiqishudezahuopu

23 Views

Life is unpredictable, this issue is a bit miserable" "BLEACH is coming" Issue 34

jingxiangaonengjun

38 Views

Firefighters successfully put out the oil pan fire with water during the drill, leaving the whole cr

gouzei66

14 Views

Super cool mechanical series of speed bumps!

jixiepangke

7 Views

Emergency call for help: To be honest, I can jump three meters high when I encounter such a scene!

songniyipianshuye

464 Views

"Earthquake Bed," which has been watched by 50 million people online, is about to release version 2.

Feifeijianzhang

13 Views

【Street Dance】UFO Dance Troupe covers "Roof on Fire - Song Qian"

AlvinYounganyang

121 Views

I advise you to quit porn (enlarging testicles)

xuetudexin-

44 Views

"So" for free

xiaoxiaodragonchuan

38 Views

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

yaki1

47 Views

There are thousands of rivers, safety is the first, treading water is not standardized, and relative

Qiaofan

94 Views