"It, didn't move at all."
As soon as Chen Yu finished speaking, a flood of bullet comments erupted once more.
【？】
【？？？】
[Qiao Biluo: Yes, it didn't move.
I'm the one that moved.]
[If it doesn't move, it's a bastard.]
[How can it exceed the speed of light if it doesn't move?
Is it through love?]
[The speed of light depends on fate. When fate arrives, it will naturally exceed the speed of light.]
[It's fine if it doesn't move.]
[One punch for one freak...]
In order to see the bullet comments, Chen Yu deliberately removed his glove and stared at his watch for a while. However, when he discovered that the entire screen was black, he helplessly gave up and said, "There are too many bullet comments. I can't see them clearly when they overlap.
However, even if I don't look, I know what everyone will say.
How can a spacecraft exceed the speed of light if it doesn't move?
"The relevant principles can be both complicated and simple. I will try my best to explain them to everyone in easy-to-understand terms and experience the wonders of future technology.
"First of all, there is a premise that the speed of light cannot be broken in the theory of relativity. We must be clear about this point.
"The speed of light is the highest speed an object can move.
According to the famous mass-energy conversion formula, e = mc2, where e represents energy, denotes mass, and c represents constant.
When an object's moving speed reaches a quarter of the speed of light, its mass will increase along with its speed!
The faster the speed, the greater the mass of the object.
"If an object continues to accelerate to near the speed of light, which is roughly 300,000 kilometers per second, its mass will approach infinity.
"Hence, according to this formula, objects with mass will never be able to reach or surpass the speed of light.
This is the premise that the speed of light cannot be broken. Objects with mass cannot be broken!
"Meanwhile, the reason why photons are so fast is because photons convert all of their mass into energy, allowing them to maximize their speed."
Raising a finger, Chen Yu said, "According to this premise, objects with mass cannot exceed the speed of light. Conversely, objects without mass can exceed the speed of light, right?
"The answer is... Yes.
"As long as they do not carry mass or information, exceeding the speed of light is allowed.
For example, the wave function of quantum mechanics, tachyons, and the expansion of cosmic space!
This is the most typical example. "
"The birth of the universe was related to the Big Bang 13.8 billion years ago, but the scope of the universe is far more than 13.8 billion light years. This is because the expansion of space exceeds the speed of light.
Furthermore, since the expansion of space does not carry information, it does not violate the theory of relativity, and the speed of light has been achieved. "
"Speaking of which, some of the audience should have guessed how this spaceship is going to travel faster than light."
"Yes."
Chen Yu nodded, and his voice became excited. "The spaceship doesn't move, but it controls the space around the spaceship to move!
Because the expansion and contraction of space do not carry any information, it allows for faster than light speed. Therefore, the spaceship that is' wrapped 'in space will move along with the expansion and contraction of space, thus exceeding light speed! "
"This is the principle behind the superluminal speed of a spaceship!"
[F * ck!]
[Me too + 1]
[Dumbfounded …]
[Can you steal chickens like this?]
[I'm a little confused. Is there anyone who can explain it in detail?]
[It's simple.
It's a change in space. The space in front of the spaceship shrinks while the space behind expands. One pulls and one pushes, wrapping around the spaceship.]
[Show …]
[I still don't quite understand. Isn't wrapping the spaceship the same as carrying information?]
[It doesn't carry information. This is a pure change in space. The spaceship wrapped inside the spaceship doesn't move at all.
If this is considered carrying information, how did the stars at the edge of the universe move away faster than light speed?]
[It's a little like warp drive?]
[It's different. Warp drive is to find a way to reduce the curvature behind the spaceship and allow the spaceship in front to drag the spaceship away.
The method the UP is talking about has nothing to do with warp drive. To put it more exaggeratedly, it is pulling the spaceship in front over and pushing the spaceship behind away.
The distance between the spaceship and the spaceship remains the same.]
[That sounds scary. Where did you get so much energy from …]
"Where did you get so much energy from?"
Facing the camera, Chen Yu spread his hands and said, "There will definitely be viewers who ask this question.
This proves that your thinking is still stuck at the level of 'energy activation.'
Of course, this doesn't mean that you are stupid. On the contrary, being able to consider the energy aspect means that your thinking is excellent.
The difference is simply the difference in the knowledge of modern humans and future humans, which results in limited thinking and will always remain within the knowledge framework of the 21st century.
"We already know that spaceships don't move. What moves is only space.
Meanwhile, the change of space doesn't actually require the energy currently used by humans.
This includes hydrogen, antimatter, planetary energy, stellar energy, and even black hole energy … None of them are required.
"The change of space only requires one thing.
Its name is — dark matter.
(matter). "
After saying so, Chen Yu stood up and grabbed a piece of mahogany from his chair. Surprisingly, the piece of mahogany turned into red chalk.
After adjusting the camera, Chen Yu crouched down and quickly wrote a series of words on the ground with the chalk. "What is dark matter?
It was first discovered by astronomer Kapteyn (Jacobus).
Kapteyn proposed it in 1922.
However, even until now, it has not been directly detected by humans. We can only prove this matter through some possible evidence.
"Congratulations, Kapteyn. Your theory is correct.
Dark matter really exists.
Moreover … "
Raising his hand, Chen Yu pointed at the sphere on the left and said, "It's in the sphere on the left of this spaceship!
"According to the conjectures and analysis of dark matter made by humans in the 20th century, we have obtained the following properties.
"First, dark matter participates in gravitational interactions.
It might be of mass.
"Second, dark matter should be highly stable.
"Third, dark matter does not participate in electromagnetic interactions, much less photon interactions. Hence, we can't see it.
"Fourth, dark matter's movement speed should be far lower than the speed of light. Otherwise, the universe wouldn't be able to form such a large-scale structure under the influence of gravity."
Standing up, Chen Yu rubbed away the "third" with his foot and said, "I have integrated this spaceship's tutorial information with me, so I have a general understanding of dark matter.
The third is wrong.
Dark matter interacts with photons, but it is very weak.
"Aside from the three correct properties, dark matter also has two important properties.
First, it causes the universe to shrink.
Second, it is evaporating.
"The evaporation I mentioned is just an adjective. To be more precise, it is carrying out an unknown reaction and dissipating an energy body called dark energy.
This energy body possesses unimaginable negative pressure and negative energy.
It is this energy that causes the expansion of the universe!
"That's right. Physics and astronomy communities around the world, update your universe models and textbooks now.
We can confirm that dark matter is disappearing because it is constantly generating new dark energy.
This also explains why the expansion of the universe is getting faster and faster. "
Tossing away the chalk, Chen Yu faced the camera and spread his arms. "Now, everyone should be clear about how the FTL spaceship is changing space.
"The left sphere of the spaceship contains a large amount of compressed dark matter.
The right sphere is a vacuum.
"When the spaceship enters space, turn off the left sphere's restriction. Then, through the (unable to input symbol) method, the dark matter will shrink the space on the left.
"At the same time, the spaceship will decompose a portion of dark matter into dark energy and channel it into the right sphere to expand the space on the right.
"When the spaceship's attitude changes to the left sphere forward and the right sphere backward, the spaceship will advance at FTL!
No matter how fast the spaceship moves, it will not produce any acceleration. In one second, or even one microsecond, the spaceship can accelerate from zero to hundreds of times the speed of light!
"In the end, technology has defeated the universe.