Chapter 21: Catastrophic Disaster

The feeling of depression in his heart became stronger and stronger. Thomson did not even have time to respond to Thomas, and he started calculating on the computer. This is the sharp intuition of a top scientist. He had a premonition that a crisis was brewing, and a catastrophe that no one expected was quietly happening...

Ten fingers quickly tapped the keyboard, listing various equations: kinetic energy formula, friction formula, aerodynamics, fluid mechanics and gravity...

Soon, these formulas were sorted on the screen. After hitting enter, the computer began to calculate, and Thomson's breathing began to become heavy. He felt a little black in front of his eyes and had faint signs of fainting.

The running speed of the supercomputer is very fast. In less than a second, the result came out. In an instant, he felt his heart being pinched by a big hand, and his face was pale. He really hoped that he had calculated it wrong...

"Teacher, look at the ice I collected!" His student Thomas ran into the laboratory excitedly with a piece of plastic film. When he saw Thomson working, he stopped talking immediately.

Teacher Thomson is a very strict person, and you will be criticized if you interrupt his work. No one likes to be disturbed when they are working.

Since the explosion of the earth, both of them have lost their relatives. The teacher-student relationship that was originally normal has become much closer, and Thomson's requirements for him have become more and more stringent.

However, no matter what, Thomas can always feel a trace of love in these strict requirements. Perhaps, they are already the most familiar people to each other.

"Thomas, come and see if my calculation is correct." Thomson said tiredly, fearing that he had made a mistake.

This time, he deduced it again on the computer, writing each formula step by step, and it took a long time. In fact, according to the usual level, these simple deductions would not take so long at all, as if these few lines of formulas took his life's effort.

"This is..."

Thomas did not notice that Thomson's expression was a little wrong. He looked at it curiously for a while, and his genius brain quickly reacted, "Oh... uh... I understand, you are calculating how far a high-speed ball can fly in the air? Well... there should be no problem with the calculation process. Ah, this is..."

Seeing those familiar parameters, Thomas suddenly thought of a possibility, widened his eyes, and trembled all over. He rubbed his eyes and looked again, and found that he was not mistaken. The panic in his heart could hardly be described in words. He sat down on the ground and met Thomson's eyes.

"Has God abandoned us?!"

...

Yu Yifeng got the news the next moment. At first, his blood boiled, his head was dizzy, and he felt like the sky was falling. What kind of situation is this? One wave has not settled, and another wave has risen. Humanity has not even solved the food crisis, and this kind of thing has happened again...

"Can't fall down... Can't fall down..." This overwhelming despair only lasted for a while. Yu Yifeng bit his lips fiercely. The violent bite instantly made his mouth red. With this pain, he became a little calmer. As the general manager of the lunar base, he must not fall into despair like ordinary people.

This matter is probably true. Although he was not born a scientist, he can still understand the basic physical formulas because it is not profound, that is, the level of university physics.

These formulas start from the perspective of energy. Due to the effect of friction, mechanical energy is converted into internal energy. It seems that there is nothing wrong.

But because of this, the trouble faced by mankind is huge! A drop of cold sweat dripped from Yu Yifeng's forehead.

"Ms. Yuriko, I am going to hold an emergency meeting now. I require the leaders of each production group and all important scientists to attend! The matter is very urgent, immediately, right now!" Yu Yifeng said anxiously.

"What? Is there something important? I must remind you that the transfer of so many important people will have a huge impact on the production of the base!"

"No, I have something important to say! This is an order!"

...

When the meeting was held, there was even some commotion. A small number of people were dissatisfied with Yifeng's behavior. They felt that Yu Yifeng, an outsider, suddenly took control of the entire base, and they were still dissatisfied in their hearts.

But at this time, Yu Yifeng was too lazy to argue with them. He cleared his throat and said directly, "Everyone, I have an urgent matter to say. It may not be very fast. Please be mentally prepared."

With a hint of suspicion, everyone sat down.

He turned on the computer screen, drew a ball, drew a layer of atmosphere outside, and began to demonstrate.

"Look, this is our planet - the moon."

"This is the almost destroyed earth. Our moon is orbiting the earth because of the influence of the earth's gravity."

"At the moment the earth was destroyed, the gravity changed due to the mass distribution, so the orbit of our moon also changed... The eccentricity of the elliptical orbit is about 0.21."

"With the change of orbit, the distant places are farther away from the earth, but the near places are also closer to the earth."

"We know that the earth is covered with a lot of gas and dust. In the place where Australia used to be in the southern hemisphere, there is a super-large air mass spread out by a giant mushroom cloud. As it revolves around the earth, our moon will soon pass through that air mass."

"Everyone also knows that the density of this air mass is very low, less than one hundred thousandth of the earth's atmosphere. It is a mixture of water, sand and air, and it does not harm us humans."

"No one takes it seriously, but because of this, we all neglect this problem!"

The people below heard it and whispered to each other, not knowing what Yu Yifeng was going to say.

"Listen to me, even such a thin atmosphere will bring a certain amount of air resistance, and when the moon moves, it will produce a lot of friction with the atmosphere, converting part of the kinetic energy into internal energy."

"Think about it, the moon is so huge, the air resistance is also very huge. So, our moon has been slowing down these days..."

Before he finished speaking, some quick-thinking people had realized something and became restless, and the rest of the people also began to vaguely realize that things were really not good. The moon's deceleration must not be a good thing.

The whole venue became silent, and everyone began to listen to Yu Yifeng's speech attentively, and some people's little thoughts could only be hidden in their hearts for the time being.

Yu Yifeng paused for a moment, and after everyone had digested it, he continued: "When the speed of the moon decreases, the centripetal force required for circular motion will be less than the gravitational force of the earth on the moon, so the moon will be sucked into the earth a little, and then the whole system will maintain a new balance."

"This balance is very complicated. With the loss of kinetic energy, the eccentricity of the moon's orbit will increase, and the lowest point of the orbit will gradually move closer to the earth, which is very dangerous."

"Because the closer to the earth, the more meteorites there are, and the higher the probability of being attacked. Moreover, as the atmospheric density increases, the loss of kinetic energy of the moon will be faster..."

"We speculate that there are three final results. The first is that the moon is hit by a giant The impact of meteorites. The probability of this possible occurred. A meteorite with a diameter of ten kilometers will trigger the 13 -level earthquake and destroy our entire base. " The ball has not been pulled by gravity. Then, after the dynamic energy is reduced to a certain degree, there will also be a risk of collision with the moon. "" This process will not be short, but it is not long ... "Yufeng donates the formula given by Professor Tomson on the screen. We will be directly threatened by the peripheral meteorite! A small stars with a diameter of ten kilometers can completely extinct human beings. "