The situation is more complicated now, the temperature inside the spaceship is slowly decreasing, but after a certain level, it will no longer drop, because there is a lot of magma at the bottom of the bottom layer, and it is heating up all the time!

In addition, after people blocked some entrances and exits, the temperature tended to rise again.

Fortunately, Noah's purple metal is so heat-resistant and insulating that the heat is not transferred to the radiant wall, and humans are not cooked.

The internal environment was terrible and needed to be repaired urgently. This shouldn't be a big deal.

And the external environment can only be said to be very peculiar...... From time to time, high-energy gamma rays will pass by the outside of the spacecraft, and sometimes they will hit the ship again, increasing the kinetic energy of the spacecraft.

Scientists estimate that Noah is flying through space at extremely high speeds.

Yes, extremely high!

This is no joke, and it can even be said that ...... Close to the speed of light!

"According to calculations, it should be more than 0.98 times the speed of light! We are sailing at 0.98 times the speed of light! ”

As soon as this was mentioned, a group of scientists even forgot about many troubles, and their faces showed fanatical expressions, and they all sighed and opened their eyes.

Thanks to the supernova explosion, humanity is marching into the unknown of outer space at an unprecedented speed!

A stellar explosion is a super driving force, much more powerful than a nuclear bomb explosion......

At 0.98 times the speed of light, the relativistic effect is already very serious. In this case, the dynamic mass of the spacecraft changed from 1,038,600 tons to 5,219,100 tons, about five times the original.

In other words, Noah received more than 4 million tons of mass from a supernova explosion, all of which was converted into kinetic energy for the spacecraft.

It sounds exaggerated, but it's actually normal when you think about it. With such a large volume and almost zero density (about 0.000073 kg/m3), Noah is easily propelled by infinite light pressure.

4 million tons is not a lot of mass, and when the sun burns normally, the mass consumption of 1 second is this number. Now that the energy of the sun for 10 billion years has been released in an instant, what Noah has received is only a dime a dime a dime, which is only equivalent to one part of three billion.

But this kinetic energy is simply outrageous for human beings, and it is impossible to stop the spacecraft by ordinary deceleration means alone!

Rocket reverse push? Don't even think about it!

Fortunately, because of the peculiar nature of Noah, there is a "transcendence deceleration scheme", as long as the material is thrown out, the spacecraft can quickly slow down.

So humans don't worry about slowing down at all. For human beings, the most important thing is to find a rich terrestrial planet on the way forward, and then stop, keep mining, mining, mining, mining......, mining

When it comes to this, several scientists casually discuss it.

"Encounter a planet? Easier said than done...... The universe is empty after all. This probability is very low! ”

"Yes, but our spacecraft will only be faster than 0.98 times the speed of light, not slower. Because the Noah cannot be detected by large reconnaissance devices, we cannot estimate it accurately, and this is only the most conservative estimate. ”

“…… Maybe faster! ”

"The time dilation effect caused by high-speed navigation can expand our search range......"

Yu Yifeng sighed and nodded again.

The mysteries of the universe are infinite, and one of them is the "relativistic effect" of high-speed motion.

The speed of light is a very magical speed. Even in a sub-light spaceship, if you observe a beam of light inside or outside the spaceship, you will find that its speed is still the speed of light relative to the observer. Regardless of whether the beam of light is relative to the direction of the observer's movement or in the same direction, it is still the speed of light...... This is the principle of the invariance of the speed of light in the theory of relativity.

The "relativistic effect" is further divided into "time dilation", "shrinkage" and "moving mass". For an object moving at high speed, if you look at it from the stationary side, you will find that its time will expand, its size will shrink, and its mass will increase!

But the high-speed moving object itself does not have any sensation.

"The time dilation effect is very good for interstellar travel, and at 0.98 times the speed of light, we feel that the time becomes one-fifth of the original time, which is very helpful for crossing long voyages."

"The 3 months we feel is 15 months from the outside. So, according to the timeline outside, we are 15 months away from the sun exploding! It's 1.3 light-years away from the original Mars! ”

Speaking of which, many scientists find it quite amazing. This is a very obvious relativistic effect that humanity really experienced. And such a relativistic effect is a good thing for human beings, which means that in their lifetime, they can fly farther!

The farther you fly, the more likely you are to encounter a planet or star!

"If you encounter an ordinary meteorite swarm, forget it...... We have to come across a planet that is rich enough to stop. ”

"Yes." Yu Yifeng also agreed, if they didn't run out of mountains and rivers, they would definitely not be satisfied with some ordinary meteorite groups.

Such a chance to operate at high speed is a once-in-a-lifetime opportunity, and once humans slow down the spacecraft, they will no longer be able to accelerate it to such high speeds.

Humans don't have the ability to detonate another star to propel a spaceship.

Therefore, people must find a good place to settle down, and they cannot be satisfied with small meteorite groups.

Yu Yifeng has already made up his mind that people will develop into a real interstellar civilization on a new foothold!

For the general public, the psychological experience is very peculiar now. Although the ultra-high-speed movement of the spaceship has not changed people's daily life, in everyone's mind, there is a feeling of a day in the sky and a year on the ground. (In a spaceship close to the speed of light, all physical phenomena are the same, and do not change people's daily lives.) ）

There is a very famous conjecture, called the twin paradox, which goes like this: there are two young twin brothers, one of whom steps onto a spaceship and travels near the speed of light, while the other stays on Earth.

As a result, when the traveler returned to Earth, he found that his brother who remained on Earth was already sixty years old, and his age, only one year older.

This twin paradox is caused by the "time dilation" in the relativistic effect.

Because of this psychological experience, another wave of learning frenzy of relativity theory has been triggered......

However, the new government's main concern is to know what is like in the starry sky outside and where humans have come. But it can't be done now, not even by scientists.

At such high speeds, in addition to the high-energy radiation from the sun, even other particles in space are very dangerous.

The universe is close to a vacuum, but there are also small amounts of particles. In interstellar space, the number of particles per cubic centimeter is about one. In a vast void similar to that between the Milky Way and other galaxies, the number of particles per cubic centimeter is 10 minus 6, that is, there is only one particle in 1 cubic meter.

For a sub-light spaceship, these almost stationary particles are nothing short of a nightmare, and when the two collide, a certain level of explosion will occur!

Although the explosion power of a particle is not very high, it accumulates like TNT explosives continue to bombard

As a result, the surface of the Noah was exploding all the time, and the speed was gradually decreasing, but the process of decreasing was unusually slow. And when the high-energy rays from the sun hit Noah, they will still provide it with some kinetic energy.

Because of this, no detection instrument can directly detect Noah, otherwise it will be directly broken into tatters by interstellar particles or high-energy rays!

Even if you are a gravitational wave telescope, you can't feel the gravitational waves outside the spacecraft, so you have to go out.

Scientists are working on a way to solve this problem.

The easiest way is to put the large reconnaissance instrument on the side with its back to the direction of Noah's movement, at least the interstellar particles will not be able to hit it......