Ultraman – Only Want To Protect You

The gloomy weather makes people feel a sense of uneasiness, this feeling haunts their hearts.

The dark clouds in the sky glow with purple light. If you have an energy decay meter, you will find that the dark clouds in the sky are not black clouds, but an impurity formed by energy, which covers the entire sky of Changping, not Leave a gap.

Let the ground have a faint purple color.

"I feel like we are in trouble ..."

Huang Ying stood in front of the tent, facing Jiang Qi over the phone, whispering, "It's really a coincidence."

"I'll go find you……"

Jiang Qi over the phone was silent for a while, then said suddenly.

"no need……"

Huang Ying stopped Jiang Qi, and then said: "If it is to tune the tiger away from the mountain, it's not good, you stay there first, if there is a problem ..." I will contact you ...

"Beep ..."

Suddenly, the phone hung up by itself. Huang Ying looked at the phone in surprise and found that there was no signal.

"What's wrong? Captain Huang!"

Li Yulong on the side also looked at here with some fear, and originally felt that the weather was very wrong. Now that Huang Ying is here, it is even more frightening.

But Huang Ying just glanced at him, and then took out the communicator. I saw that the satellite could not be contacted and could not contact the outside world.

"Does the phone have a signal?"

Suddenly, Huang Ying looked at Li Yulong and asked aloud.

"Mobile phone ..."

Li Yulong heard Huang Ying's question. Although it was very strange, he still took out his mobile phone, but it showed a magical signal that there was no signal.

"... Okay, I know ..."

Seeing Li Yulong's surprised expression, Huang Ying already knew what was going on, so she took the first two steps, looked at those who were still working, and said, "Let them come back first, after all, life is important."

"I know."

Li Yulong immediately left Huang Ying's side and went to the staff to let everyone gather for a while. Compared with life, what can I do if I work one day less? If it doesn't work, it's a holiday.

"It seems my estimate is a bit wrong ..."

Looking around, Huang Ying frowned and said.

However, in Gaoyang City, a spot of light flew towards the horizon at a very fast speed.

...

"Gravitational waves are confirmed! The Nobel Prize in Physics ..."

Cheng Yu couldn't help but look at the news that successfully squeezed out the reappearance of Sailor.

Gravitational waves? He remembered hearing the teacher mention it once when he went to school.

Gravity is considered to be an effect of space-time bending. This bending is caused by the presence of mass. Generally speaking, within a given volume, the greater the contained mass, the greater the curvature of space-time at the boundary of this volume. When a mass object moves in time and space, the change in curvature reflects the change in the position of these objects. Under certain circumstances, accelerating objects can change this curvature, and can propagate outwards at the speed of light. This propagation phenomenon is called gravitational wave.

When a gravitational wave passes through an observer, because of the strain effect, the observer will find that time and space are distorted. When the gravitational wave passes through, the distance between objects will increase and decrease rhythmically. This frequency is the frequency of this gravitational wave. The intensity of this effect is inversely proportional to the distance between the sources that generate gravitational waves. The orbiting double neutron star system is predicted to be a very strong source of gravitational waves when they merge, due to the huge acceleration they generate when they orbit close to each other. Since they are usually very far away from these sources, the effect when observed on Earth is very small, and the deformation effect is less than 1.0E-21.

Since the gravitational field equation is highly nonlinear, in order to facilitate calculation and based on actual approximation, we usually use linear approximation theory. Take the space-time metric as a small quantity, that is, add a little perturbation to the straight space-time.

Perhaps they will not understand. Their teachers used to compare Jack and Ruth in Titanic. The reason they attract each other is not only because of love but also because of quality.

In Einstein's description, a mass object will distort the space-time around it. The greater the mass of the object, the more severe the space-time distortion.

If you think of space-time as a large rubber film, and then put a Ruth on it, then her mass will press the rubber film down, and put a Jack near you, you can see this scene:

Since they can't afford these two stars, they have to use steel **** instead.

It can be seen that the time and space bending caused by Ruth's ball and Jack's ball caused them to gradually roll towards each other and finally come into close contact (what is wrong). Of course, when asked by the other half "why are you attracted to me", if you answer "because you are heavy", you will be at your own risk.

The relationship between the sun and the earth is the same, except that the sun is much larger than the earth, and the resulting space-time distortion is also greater, so it seems that the earth is rotating around the sun-according to the general relativity, "gravitation" is just The phenomenon that time-space distortion must bring.

However, the gravitational wave was actually confirmed, which made Cheng Yu surprised.

"what happened?"

Ding Yunfeng walked to Cheng Yu's side and found that Cheng Yu's emotions were a bit wrong. He asked.

"The gravitational wave was confirmed ..."

Cheng Yu was talking while watching the news for Ding Yunfeng. There was a little excitement in his eyes.

"This is a good thing ..."

Even when Ding Yunfeng saw it, he couldn't help but froze for a moment. The news was really too sudden, saying: "The last blank of its astronomical observation. The characteristics of gravitational waves allow it to provide information that other means can't obtain. The waves generated by mechanical motion reflect changes in the mass distribution; since gravitation is the weakest of all interactions, this aspect makes it extremely difficult to generate and detect gravitational waves, and on the other hand, it gives it the strongest penetration , Even stronger than neutrino. "

Ding Yunfeng was talking while making himself a cup of coffee, and he was done.

"Commander, do you know so much?"

Cheng Yu looked at Ding Yunfeng in surprise, twitching his mouth. Ding Yunfeng's usual strength was only his insight and command, but I really didn't expect that Ding Yunfeng said he hadn't thought about it.

"Okay ..."

Ding Yunfeng took a small sip of coffee and said, "My wife is one of the people in charge of researching this project, but I really didn't expect it to succeed."

"Really?"

Cheng Yu's eyes lit up. He was not concerned about plans, but Ding Yunfeng's wife. This was the first time in such a long time that Ding Yunfeng had heard of his wife.

Cheng Yu, a kid who hasn't even talked about love, how could he not be curious, but when he was about to ask, Ding Yunfeng suddenly looked at him, his eyes narrowed, with an unknown meaning.

"amount……"

I don't know why, Cheng Yu suffocated all the words in his mouth, scratched his head awkwardly, and said: "That, the effect of gravitational waves doesn't feel great ..."

Pooh! He said something subconsciously, but he even said such nonsense. When the ancients fired fireworks, did they ever think about today's nuclear bomb?

In the evolution of civilization, a very small thing is likely to become a crucial issue. Therefore, Cheng Yu felt that this sentence was stupid.

"Prove it, it just makes the theory of relativity stronger, as for us ..."

Ding Yunfeng paused with his arms folded. After a while, he continued: "I still don't know much about this comprehension, I can only go on one step at a time."

"..."

After hearing this, Cheng Yu nodded, then closed the gravitational wave news interface, and was ready to start his work.

The new program will soon be put into use, and for the main designer, Cheng Yu cannot relax any inspection opportunities.

"command."

At this time, Han Yi suddenly walked in, his footsteps in a hurry, greeted Ding Yunfeng, and then looked at Cheng Yu, said: "Help me contact Huang Ying, I can't reach her."

"Oh!"

Cheng Yu looked at Han Yi in surprise, and smiled a little teasingly, and said: "The captain is a bit too much, work must show love? Pity us single dogs."

"..."

Han Yi's mouth twitched, and he looked at Ding Yunfeng, all of them, making this kid so big and small.

"Look at me? I'm not a single dog."

Ding Yunfeng can probably guess what Han Yi thought, but Ding Yunfeng is Ding Yunfeng after all, turning his head directly and not looking at him.

"Faster……"

Han Yi helplessly raised his forehead, then said to Cheng Yu: "Suddenly unable to contact, I am a little worried."

"understood!"

Cheng Yu smiled slightly, and his fingers quickly operated on the keyboard.

"Okay, you two ..."

Ding Yunfeng walked over and patted Han Yi's shoulder and said, "If you show love again, Xiao Chengyu is upset."

"..."

Han Yi's face-filled question mark, he didn't show much, not just him, Huang Ying himself is also because of work, and rarely has the opportunity to meet. Even if they get along alone, neither of them has the property of sticking to people, at most they go out It's just talking, at most it's just holding hands, how come it shows? The world of single dogs, forgive him for not understanding.

"its not right!"

At this time, Cheng Yu suddenly exclaimed, let them turn their eyes to him.

"What's wrong?"

Han Yi immediately got down and looked at the computer screen, which showed "Unable to contact"!

"could not be reached."

As Cheng Yu said, he kept trying again and again. After the last attempt, Cheng Yu raised his head, looked at them with confusion, and said, "Unable to contact."

"How could this be?"

Han Yi immediately got up, looked at Ding Yunfeng, and said, "I request to go to Changping."

"You calm down first."

Ding Yunfeng looked at Han Yi, motioned him to calm down, and then asked Cheng Yu, "What happened? How could the communication system of the night attack not be reached?"

"This……"

Cheng Yu quickly traced back to the wrong stage of the system. As a result, he was stunned. He said dumbly: "No signal ..."

"What?"

Han Yi stared, how could there be no signal in the current era, only a few times were counted, and without exception, it was caused by the appearance of monsters.

"There is no signal in the area of ​​Captain Huang Ying."

Cheng Yu operated quickly, and after a while, he suddenly sent a video to the main screen and said, "This is an image taken by a nearby satellite."

Han Yi and Ding Yunfeng, the members of the entire command room, looked at the main screen. It didn't take long for me to see a picture appear on the main screen.

Very normal traffic, very normal high-rise buildings, very normal people, those people who are a little abnormal are all looking up at the sky.

I saw that the sky was covered with purple clouds, and the whole earth had an unknown feeling. At that angle, the edge of the clouds could be seen.

"Is this cloud blocking the signal?"

Cheng Yu looked at the cloud a little bit uncertainly. After all, he was looking for the nearest signal city from Changping.

"team leader!"

Han Yi looked at Ding Yunfeng. Anyway, Huang Ying might be really in danger, he could not ignore it.

"Attention everyone."

At this time, Ding Yunfeng spoke, only to hear him say: "Start Changping, be careful."

"understand!"

The team members picked up the helmets and ran out, including Han Yi, who was most anxious.

"The place where we started this time is likely to cut off the connection between us."

Ding Yunfeng communicated with the team members on the radio while walking behind Cheng Yu and said, "If this happens, it is up to you to make your own judgment. Remember, calm down!"

If the signal can really be cut off, is the communication between the players also cut off? Ding Yunfeng can't bet!

(Gravitational waves are in physics ~ www.wuxiaspot.com ~ gravitational waves refer to ripples in the bending of space and time, propagating outward from the radiation source in the form of waves, this wave transmits energy in the form of gravitational radiation, Einstein The existence of gravitational waves is predicted based on general relativity. The existence of gravitational waves is the result of Lorentz invariance of general relativity, because it introduces the concept of limited propagation speed of interaction. In contrast, gravitational waves cannot exist in Newton In the classic gravitational theory of Newton, because Newton ’s classic theory assumes that the interaction propagation of matter is infinite in speed. Of course, this is not important. They just found the existence of gravitational waves, but in application, they are not as good as ours. , At least we know how to use it.

In my understanding, at present, it should be astronomical observations, such as black hole mergers, supernova explosions, and so on.

Putting gravitational waves here is just in case, mainly because of the long-term perspective of the plot behind it. After all, humans cannot stay on the earth. The only difficulty is how the protagonist goes into the universe ... not worried He ca n’t go, it ’s the reason, otherwise I would really plan a plot like that. Everyone has good ideas and can talk about it. )

(Also, today's mentality is a bit blown up, because the students watch lol's league, I vow to say that rng is likely to win, and in the end skt wins ...)