I make a popular science video and all the emperors learn from it!

[In the future, six possible means of transportation!]

[1: Space Elevator]

[The space elevator, also known as the "orbital elevator", is actually not a new concept. 】

[Science fiction writer Arthur C. Clarke described in his 1978 book "Springs of Paradise" that space elevators travel to and from the ground to the space station along a long rope, which can easily transport people and goods, and is safer and cheaper than launching rockets. 】

[The first to put forward the concept of the space elevator was Konstantin Tsiolkovsky, a Soviet scientist, the founder of modern astronautics in the West, and the "father of astronautics". 】

[He believes that in the future, mankind will build a tower that goes straight to space, and the tip of the tower is a castle, and people will take an elevator to get there.] 】

[Good things, naturally will not be let go by space powers. 】

[In 1999, the advanced office of the Marshall Center of the National Space Agency (NASA) carried out research on space elevators and published an article titled "Ladder: Advanced Infrastructure in Space". 】

[In 2005, NASA launched another "challenge of the century", and the first choice was the space ladder. 】

[In 2012, a company in the United States claimed to build a Tai-19 empty elevator connecting the earth and the moon, raising at least $3 million a year for feasibility studies, and the CEO of this empty company is from NASA]

[Following the United States, a neon country construction company called "Obayashi Gumi" also announced in 2012 that it would develop the "Tokyo Sky Tree" to send 30 neon people into geosynchronous orbit by 2050. 】

[Composition of the space elevator:]

[A huge and sturdy base, one or a set of high-strength cables, one or several space stations, one or several lift cars, and a giant "plumb". 】

【Base:】

[The ground base is the starting point of the space elevator, and it is also the fixed point of the elevator cable on the ground. 】

[The base needs to be huge and extremely strong. 】

[In order to make the "Ark Space Station" in the middle of the space elevator run as stably as possible, this base needs to be built on the Earth's equator. 】

【Rope:】

[What connects the ground base to the space station is a cable or a group of ultra-high-strength cables. 】

[On the one hand, this cable has to connect the space station in geostationary orbit at an altitude of 36,000 meters, and it also has to pull a huge counterweight nearly 100,000 kilometers high. 】

【Space Station:】

[The Tiangong space station and the international space station both fly around the earth in an inclined orbit of about 400 kilometers, and each time to circle the earth is about 91 minutes, and it takes 24 o'clock a day to rotate

。 】

[Since the future space station is held by cables, its flight needs to be synchronized with the Earth and try to be as stable as possible.] 】

[Therefore, the space station of the space elevator will be located in a geosynchronous geostationary orbit 36,000 kilometers above the Earth's equator.] 】

[Because the weight of the space elevator cable system is very large, the space station in geostationary orbit cannot bear it, so the cable needs to pass through the space station and extend tens of thousands of kilometers upwards until it is nearly 100,000 kilometers in the air, where there is a huge counterweight to taut the cable. 】

[Of course, a new space station can also act as a counterweight or "anchor."] 】

[In this way, the space elevator can have at least two space stations.] 】

【Bridge Compartment:】

[The space elevator is a space-earth vehicle, and like an ordinary elevator, it also has one or more cars. 】

[The car of the space elevator can be powered by electricity. 】

【......】

[Here's a video of a space elevator demo.] 】

[Material from "The Wandering Earth 2"]

The light curtain starts playing the edited video.

【...】

"I've seen it for a long time, and there is such a way to fly to the sky!"

"Huh, get into a box and you can fly high in the air. "

"There was no fire underneath this time, how did you fly up??"

"Look at that, this is where we are staying below, and from above, it is so small. "

"Space station! Later generations can actually build houses in the air! And say that this is not the Heavenly Palace! The emotional Heavenly Palace has been built by itself. "

“..."

The ancients of the dynasties were excited.

I didn't see the Heavenly Palace on the moon, but why did the space station built by later generations look so much like the legendary Heavenly Palace?

Qin Dynasty. (If you read a violent novel, go to Feilu Novel Network!)

Hu Hai danced excitedly.

For some reason, he really wanted to fly directly into the sky like the person in the video!

Enter the so-called space station.

Novelty always attracts curiosity.

The other princes, and even the ministers around them, also showed yearning expressions.

Ying Zheng's eyes narrowed slightly, with such technology, what kind of immortals and fairy palaces are you looking for? !

You can do the means of immortals yourself!

The immortals, in turn, should beg the humans to teach them advanced technology.

Three Kingdoms period.

Cao Cao was dumbfounded.

It's getting more and more magical!

Is this still the land on which he lives?

They are all people who grew up eating rice and wheat flour, and the people of later generations are inevitably too fierce!

Actually built the house in the air![]

And for some reason, the house can still float.

Cao Cao swallowed.

Compared with the feats of later generations, the fights between the three kingdoms are not worth mentioning at all.

He had a sudden impulse.

You have to go back to the future and contribute to the emerging dynasty!

Ming dynasty.

Zhu Yuanzhang stepped on the electric balance car, his eyes blazing.

There is quite a kind of kingly momentum.

It didn't take long.

His expression turned stunned.

"We finally learned to control the electric balance car, and future generations can go to the sky at will??!"

It's all standing still.

He can only run on the ground, but the person in the video can go straight to the sky and reach the so-called space.

Others are numb.

It's not fair! You have to change your means of transportation.