1 View PremiumSep 20, 2025
Does 100% pure water exist? Why does Japan store 50,000 tons of ultrapure water 1,000 meters undergr
0 View
Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?
19 Views
The foreigner's giant plow tractor actually has a cab from the last century!
13 Views
Why can loose sand be made into sand sculptures after mixing with water?
10 Views
How Tsunamis Are Formed (3D Principle)
21 Views
What kind of wisdom did the ancients have to design such a sophisticated mechanism?
25 Views
Bleeding Heart
"Earthquake Bed," which has been watched by 50 million people online, is about to release version 2.
20 common mechanical transmission structures, I'm exhausted
85 Views
I advise you to quit porn (enlarging testicles)
45 Views
He's finally here! ! It's really funny, he plays a mute and a drunkard with a stammer. Others are re
18 Views
Decompression video of the workers series!
34 Views
The incredible elastic tunnel plug inflates into an air bag in half an hour to block the influx of f
1 View
What is scraping? Precision machine tool processing must be done manually, this is the real technolo
What is the "Venturi effect"? Firefighters can put out fires by spraying water out windows. Do you k
How does the "traditional oil pressing method" work? How much oil can be produced by hitting a 200-j
What is the Celtic Magic Stone? Place it on a table and rotate it in the opposite direction. Somethi
How corrosive is aqua regia? A man used a truckload of aqua regia to dissolve 8 tons of gold. Do you
4 Views
The ball in the bearing won't fall out, so how did it get in? Read this to solve your years of confu
Although I don’t know the principle, I can imitate it!