What is "metal fatigue"? Why can tiny cracks trigger catastrophic accidents?

The ancient navigational tool "Sextant" is still in use today! Do you know how it works?

lengkepu

1 View

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

haoqiwanhuatong

8 Views

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

haoqiwanhuatong

36 Views

In case you haven't seen a scallop "walk", SpongeBob SquarePants is not kidding me

otis_arias_01

389 Views

The power of science

haoyongwujingongju

51 Views

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

haoqimiaomiaomiaody

23 Views

Incest, but not completely

zhengjingdezhishi

17 Views

Why do rock slabs need to be broken manually? #Science #Unzip #Construction #Cool Knowledge

haoqiwanhuatong

19 Views

Why do we say that no two pairs of ripped jeans are exactly alike? #Science #Unzip #Jeans #Workers #

haoqiwanhuatong

11 Views

How a vibrator works

lingmengrinmon

24 Views

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

haoqiwanhuatong

26 Views

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

haoqiwanhuatong

13 Views

Introduction to Traditional Group Farming Culture in Africa

yaki1

21 Views

Comparison of the size of tsunamis in history

Jinzhengmeiyongde

18 Views

I advise you to quit porn (enlarging testicles)

xuetudexin-

49 Views

The Butterfly Effect

q-limes

60 Views

The most rebellious bridge, the "suspension belt bridge," has stood suspended for 30 years—do you kn

lengkepu

2 Views

How do fishing nets work? Why are they able to catch fish even though the bottom is empty?

lengkepu

2 Views

How powerful is a kick from Conan's children's shoes!

yinghanxingxiang26

4 Views

A bomb that bounces on water! When you drop it on the water, interesting things happen.

lengkepu

0 View