0 View PremiumSep 7, 2025
The slowest aircraft in the world, F1D, has a thin layer of material, but can fly in the sky for 40
2 Views
Why do CNC engraving machines make seasoned craftsmen both love and hate them?
59 Views
Decompression video of the workers series!
29 Views
Speed Bump!! Skilled Workers Series
15 Views
Let's take a look at the amazing workplace of skilled workers!
16 Views
Today's stress-relief video!! Worker series ~2.10
25 Views
Speed Bump Workers Series 9.18
Why do two people need to swing the hammer when forging iron? #Science #Unzip #Ironmaking #Forging #
9 Views
The first step after a burn is not to go to the hospital immediately!
64 Views
Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe
Why doesn't it hurt when a needle is stuck in my finger?
14 Views
Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?
How sexy is sexy lingerie?
114 Views
Convex lens experiment
493 Views
What is "porcelain mending"? Put a copper nail in the crack and hit it, and an interesting phenomeno
0 View
The stickiest couple: erasers and rulers! Why do they always stick together? They even melt.
What is "scratch holography"? Aim the scratch at the light and something interesting happens!
Why is curling so expensive at 12,000 yuan per piece? Only three companies in the world can make it.
What is the "thermoacoustic effect"? Scientists built a refrigerator using noise. Do you know how it
How black is the blackest substance in the world? Can you imagine that it can make objects invisible