In space, airplanes orbit the Earth every 90 minutes at free speed. All of them turned on their camera equipment and recorded the beauty of the Earth in space.

The first circle of the spacecraft began from the western frontier of China, said the direction of rotation of the earth, drifted to the East China Sea, crossed Japan, skimmed the vast and vast Pacific Ocean, flew over Canada, and then swept across the Atlantic, and came to the sky over Africa. Because the Earth's rotation has an ecliptic angle, the Space Shuttle does not fly in space according to the dimensions of the Earth, but around the Earth's axis of rotation.

After that, the plane did not return to the corresponding space position in the western Xinjiang, but slightly staggered to the south of the earth, crossed India, Southeast Asia, South America, South Africa, Australia, and finally came to the sky over Antarctica, and then directly started the engine and flew over the North Pole.

The magnificence of the sunrise in space, the magnificence of the earth's dusk line, the dark night of the earth with the lights of the earth make people feel the power of civilization, and the ancient monuments can be observed in the starry space, which makes people feel the greatness of history. And the large cities and buildings of modern society, looking down from space, make people feel a kind of pride from the bottom of their hearts -- this is our civilization.

In space, there are no national borders, and there is no barbed wire, and even if you want to see the Great Wall, you need to use a telescope.

When you're in space, you forget about the boundaries of countries on Earth, which is a phrase that many astronauts say. And now, Long Xinsheng really felt this sentence. With his eyes, he could not accurately mark the borders of China, let alone other countries.

In space, the Earth is one! Of course, this is only the worldview in the eyes of scientists.

Once, the United States said that the development of space requires the gathering of global forces -- but China has broken the blockade of the West with its own efforts and has come to the forefront of the world with the strength of one country. This is a slap in the face.

And now, the master company is relying on the strength of a company to achieve the development of space passenger transport, maybe now is just the beginning, but in the foreseeable future, it will be another glory.

The gentle woman's voice sounded again: "Everyone, please note, please note that the plane has completed its flight to the earth, and the next step will be to fly to the moon, and the next step will be to fly to the moon." ”

Then the plane began to accelerate slowly, and it didn't flip over, or rather, in space, it didn't matter up or down.

As it slowly detached from the shadows of the earth, the intense sunlight scorched the plane.

The plane first slowly flipped around to let everyone feel the power of the sun, and then pointed at the sun with the belly of the plane, and the porthole on the other side, aimed at outer space.

Under the clear space, the magnificent starry sky world shows unimaginable beauty, and a Milky Way hangs in the sky, very far away and vast. Of course, without the astigmatism of the atmosphere, it would not be the hazy starlight that seems to be connected; It is more like gems set in the sky, and there are patches of distinct "mist" of various colors connected in the middle. It was the Space Nebula -- a massive polymer of dust, gas, debris, etc.

"Haha, I've found Polaris!" I don't know who is shouting excitedly. But no one cared, everyone was looking for the stars in their hearts, and they were all cheering.

At this moment, all the big bosses who used to be high above disappeared, and in this small cabin, there were only 16 humans pursuing their dreams.

Long Xinsheng is not only watching space, but also observing various satellites and space stations in space. The space base in China with a radius of 100 meters and the space base in the United States and Europe are just a small black dot in the background of the universe.

The voice sounded again, but it was not a gentle woman's voice, but the pilot's voice. "Passengers, please note that the plane is ready to fly beyond the altitude of the synchronous orbit, and now that the plane is starting to accelerate, let's experience the thrill of rapid speed.

Also, there is a small red button next to your porthole, and when you click it, the porthole will be temporarily closed and turn into a display showing the status of the aircraft. If the acceleration is too large and the body is uncomfortable, you can click the red button. Thank you.

Again, the plane starts to accelerate, and if you are not feeling well, click the red button next to the porthole. ”

Then, the voice changed to the program's female voice again, "Now the countdown starts, please fasten your seat belts." 60、59、……”

Long Xinsheng checked the seat belt on his body, and there was no problem at all. Then click the button next to it, and sure enough, the porthole suddenly turned dark, and then quickly turned into a screen. This kind of technology has been in demand since the beginning of the 21st century.

Now the most obvious thing above is a big countdown, which has reached 30.

Further below, there are various status displays of the aircraft.

Thrust: 110 tons, now the starting power is 5 tons;

Electricity: 10 million kWh, 270,000 kWh has been consumed;

Load / mass: nuclear load 100 tons, now weight (mass) 47 tons;

Working medium: add antifreeze liquid water, nuclear load 10 tons, has consumed 0.3 tons;

Aircraft shell temperature: 230 degrees Celsius, aircraft design shell withstand temperature 850 degrees Celsius;

Aircraft speed: 10.4 km/s (escape speed 11.2 km/s)

……

Overall evaluation: the aircraft is in good condition, perfect.

Looking at the perfect wording, it makes people feel reassured, after all, in the environment of space, as long as there is danger, it is a state of total annihilation, without the protection of a spacesuit, the huge pressure in the human body (a standard atmosphere) in a vacuum environment, at most ten seconds will begin to boil, waiting for an extremely miserable death. Ten seconds, this time - let alone space, it is impossible to rescue on the ground in this time.

Looking at the countdown, Long Xinsheng's heart in his forties began to beat, and the speed of space to hell with the racing cars on the ground. On the ground, the unit is speed; And the unit of measurement in space is seconds!

10、9、…… 2、1！

A large exclamation point appears on the screen.

Suddenly, Long Xinsheng only felt that the plane began to shake violently in an instant, and began to accelerate slowly.

On the screen, the acceleration is realistic: 0.1, 0.2...... (1 is the standard gravity of the Earth).

At this time, what Long Xinsheng felt was not the pleasure of acceleration, but heaviness! Before, his body was like a floating feather, but now it was as if a mountain was pressing on him. Fortunately, after all, the acceleration is still far less than the earth's gravity, and it quickly adapted.

The acceleration began to increase slowly, obviously taking care of the physical state of ordinary people.

Acceleration: Double the Earth's gravity!

"But why do I only feel acceleration but not speed?" Quite a few people asked. Because, when the screen is turned off, the starry sky outside the porthole is almost constant, and you can't feel any change in speed at all. Of course, what is displayed on the screen is something else.