Incredible friction welding, put two steel bars together and rotate them, and an interesting phenome

How does the Dujiangyan Irrigation System work? How did this 2,300-year-old water conservancy projec

lengkepu

3 Views

A satisfying work site at the speed bump of humanity~

jixiepangke

10 Views

"Man speed bump, satisfying work site"

jixiepangke

20 Views

Speed bumps for boys and girls!! Those novel machines

jixiepangke

8 Views

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

haoqiwanhuatong

12 Views

How strong is the force of regular CPR? I feel like my ribs are going to break in the next second.

palmer_collins_03

18 Views

What kind of job is so stress-relieving?!

jixiepangke

22 Views

Speed bumps: the amazing work of skilled workers at work~

jixiepangke

13 Views

How are such precise molds made?

YouTubejingcaishipin-

23 Views

If you often watch videos, you don’t know how terrible the job of a porn appraiser is!

d___iezatan

148 Views

Why do sheep stay still when they are being shorn?

jixiepangke

20 Views

Come see the amazing work of skilled workers!

jixiepangke

69 Views

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

danzijihe_04

58 Views

Men's Speed Bumps: Skilled Worker Series~

jixiepangke

51 Views

Let’s take a look at the decompression video brought to you today~

jixiepangke

15 Views

Star Wars Vehicle Speed Comparison (Extended Edition)

Jinzhengmeiyongde

17 Views

The amazing Crookes radiometer can measure light intensity with just a few leaves! Do you know the p

lengkepu

0 View

What is "wire cutting"? The machining accuracy of a molybdenum wire can reach 0.001mm. Do you know t

lengkepu

0 View

What is the "Fibonacci Sequence"? Draw the direction of the pine cone with a pen, and an interesting

lengkepu

1 View

The baby is fine with the bottle, but won't take the mother's milk. Beware of nipple confusion!

chengdafutanyuer

1 View