02:46

Why are plane meals so bad? Is it because you didn't pay enough for the plane ticket? The truth sub

02:49

Why is the race track designed to tilt when the car is turning? Is the speed so fast not afraid of

02:51

The man who invented the seismic folding door was a genius! How does a small door survive?

02:48

Why is there a cannon beside the airport runway? About the airport bird drive uncover the secret y

03:03

Every year millions of tons of old railway tracks are scrapped. Why not recycle them and bury them

03:01

Why don't Swedes put sandbags in flood control? Paper-thin plastic panels can prevent flood? I 've

03:01

Can airliners fly into space without a limit on altitude? The answer is not the same as imagined.

02:54

Why is 12000 a curling so expensive? There are only 3 companies in the world that can make it.

02:54

The only sea tunnel that can turn around! How amazing is the 50 billion-cost deep middle channel?

03:01

Why can a 20-meter-long small tugboat drag a giant ship 1000 times larger? How?

02:45

Frequent spontaneous combustion of vehicles! Will the car be ”sunburned” after being exposed to the

02:53

If the airport runway is made into a circle can the ”ring runway” of infinite length be able to ta

03:05

Where does the oxygen in the cabin come from? Why didn't the passengers react high when the plane f

03:03

Why doesn't a thousand-ton cement ship sink? Once all the rage why has it disappeared now?

03:01

How do the tracks in the hot weather ”escape the heat”? Look at the railway people's divine operati

03:01

What is the use of a small fan hidden at the bottom of the plane? Why can it save lives at a critic

02:50

The same is the highway why China's highway is always repaired while Japan's is as new all the ye

03:04

How strong are the security measures at the Olympics? Looking back 2008 turned out to be so many ”

03:01

What is dark on the airport runway? Do you have cleanliness to bathe the runway regularly?

03:01

Why should the civil-military dual-use airport take-off and landing close the shade and secretly op

03:02

Why doesn't the cross-sea bridge be straightened? Is it more expensive or cheaper? I finally know f

03:02

How strong are the load-bearing columns in 100 multi-storey skyscrapers? Why won't they collapse?

02:49

More than 2000 years ago how powerful was the Qin Zhidao built by Qin Shihuang? Why is it still no

02:53

How is oil formed? How is oil extracted from the seabed? The extraction equipment is on

03:01

Irradiation once will 3.2 million! Why can't you use a laser pointer to illuminate the plane? The c

03:01

How does the tower crane rise? Revealing the working principle of the tower crane the kilometer-hi

03:01

What if two construction teams repair the bridge at the same time but the middle is not aligned? B

02:55

How difficult is a ballpoint pen to make? How does it work? A textbook design

03:03

How difficult is it to cross the Berlin Wall? 3D animation to restore the internal trap see me str

03:06

A product of 60 years ago how strong is the SR-71 Blackbird supersonic aircraft? Why is it so far

03:01

What is an anti-tank horse? How does it stop the advance of a 60-ton tank? It's a genius!

03:04

What happens if the elevator wire rope suddenly breaks? The result is not the same as imagined.

03:01

Incredible sea transport! Why doesn't a 22-story container fall?

02:50

Have you ever seen a traffic jam? Have you ever seen a ship jam? Uncover the secret of a cargo ship

02:53

How does a hollow roller roller produce 40 tons of pressure? What is in it?

03:01

An engineering miracle 30 years ago! How was the Anglo-French tunnel built? Why did it become a hol

02:53

The sea is so deep how are the piers of the cross-sea bridge built? Infrastructure still depends o

03:04

Where is the oil stored in the gas station? Is it expected to be popularized by unmanned gas statio

02:58

什么是电磁悬架？给汽车底部安装8个钕磁铁，瞬间秒杀百万豪车！

03:11

百吨重的钢卷是如何拆解的？释放瞬间猛烈回弹，慢镜头下看看吧！

03:05

Bridge building 3 years and bridge dismantling 1 second! How did different countries blow up the br

03:04

What exactly is the green light on the highway? High-speed disco? It turns out that the effect is s

03:14

普通汽车最快能跑180km！高速却限速120km，为什么不能再快点？

03:06

Brake failure accidents occur frequently! How horrible is the train brake failure? The special reas

02:51

tens of thousands of dollars per hour electricity! How much electricity does the high-speed rail co

03:05

How did the bridge erecting machine weighing hundreds of tons turn around in situ on the viaduct?

03:09

Why use the pump to pump fish the fish will not be injured? Called high-tech ”fishing artifact”!

03:01

Why are there four wheels on a train axle? What's the use of the two small ones in the middle? Know

03:09

How many cars can a Boeing 747 fill up with one fuel? The truth subverts your perception!

03:01

What is a ”fog net”? In the desert can realize the freedom of water how to do it?

02:43

The bridge is built and the river is gone but the mountain is gone and the tunnel is still there.

02:57

Do you know the escape lane? It can be called the ”life-saving road” for out-of-control vehicles a

02:51

How are containers tens of meters high fixed? Why would you rather give up after falling than salva

03:02

Lonely but high-paying job: lookout in Daxinganling forest region what would you like to do?

03:00

How scary is a bridge shaking? What happens when a bridge under an earthquake and a strong wind sha

03:06

The bigger the plane the safer it is? Should I choose a large or small plane? From a scientific po

02:59

What is ”pipe jacking machine”? What is the difference between it and shield machine? Animation det

02:55

Why is sand in the locomotive? The train can't move without it do you know why?

02:47

Have you ever seen a boat pushing a floating island? What happens if you don't? It can be called a

02:52

The shortest straight line between the two points why the United States fly to China's aircraft b