Beibei roams the magical starry world

Seeing the friends slowly coming back to their senses, they said, "Let's play a game!"

The friends looked at Xiaohuan, wasn’t he giving a lecture? Why do we want to play games again?

Xiao Huan looked at the puzzled friends and said, "I ask questions, and you answer them."

"Okay!" The friends were eager to try.

"Question 1: What is the name of the narrow tunnel that connects two different times?"

"Space Void." Qiuqiu was the first to answer.

"Exactly, question two: What is a black hole that radiates particles called? Why?"

"It's called a gray hole, because a black hole means that nothing, including light, can escape. If particles are radiated out, the black hole will not be established and can only be called a gray hole." Xiaoyan replied.

"Exactly, small flames are amazing! Question 3: Please tell me the characteristics of black holes."

"Gravity is extremely strong, and the escape velocity is greater than the speed of light." Dumbo replied

"Good answer, question four: Who can summarize black holes in one sentence?"

"A black hole is a celestial body with a curvature of space-time so large that even light cannot escape from its event horizon." Qiuqiu answered.

"A group of space-time geniuses! Question 3.5: Why is the world we live in said to have dimensions? What is the other half of the timeline?"

"The other half of the timeline is called the 'reverse timeline'. In the dimension we are in now, time only has the future. But from the perspective of dimensional integrity, time should have the other half of the coordinates, which is the reverse timeline. As long as you follow the reverse timeline , you can go back to the past. But we haven’t discovered it yet, so the world we are in is 3.5 dimensions." Dumbo replied

"As expected of a guy with multiple heads, question six: What can you call a person who can only provide matter and energy to external areas, but cannot absorb any external matter or radiation?"

"White hole." Homura replied

"Very good. Question 7: Two extremely huge objects, such as black holes or stars, need to meet or collide at a very close distance to form gravitational waves. Abnormal changes in gravity cause space-time to bend, and what is formed?"

"Wormhole." Qiuqiu replied

"Question 8: The formation of wormholes may be to connect black holes and white holes. What is the name of this "space-time tunnel"?"

"Hui Dao." Qiuqiu answered quickly.

"Very good. Question 9: Two trains at the same speed are running in opposite directions. If you stand on one train and observe the other train, what should the speed of the other train be?"

"The speed of the other train should be the sum of the speeds of the two trains." Dumbo replied.

"Quick and good answer. Question 10: If you stand on one light and look at another light in the opposite direction, is the speed of the other light the sum of the two lights?"

"No, it's still the speed of light. The theory of relativity believes that the speed of light is constant. The speed of light is already the limit of the universe. According to the current theoretical basis, super-light speed is unachievable." Qiuqiu replied

"Question 11: Please explain time standing still."

"When the speed reaches the speed of light, time tends to stand still. That is: at super-light speed, time tends to stand still, and even time travel occurs." Xiaoyan replied

"Question 12: How to shorten the distance between two places in the universe?"

"Space folding, the "0 distance" caused by the direct proximity of two points after space folding. In general relativity, space is considered to be a four-dimensional space-time, and space folding can be achieved by folding together adjacent parts of one region of the four-dimensional space-time with another region. "Dumbo replied.

"Everyone has answered very well and has memorized all the knowledge points. Let's continue talking so that everyone's brains will not be confused." Xiao Huan continued:

"2. Methods of time and space travel, including: traveling through wormholes, super-light flight, time and space distortion and teleportation.

1. Traveling through a wormhole: Construct a tunnel that connects two different places or times through a wormhole, allowing you to get from one place to another instantly.

2. Faster-than-light flight: When the speed of an object approaches the speed of light, time will slow down. Theoretically, if an object travels faster than the speed of light, time can flow backwards.

3. Space-time distortion: When the degree of space-time distortion in a certain area is large, the flow rate of time is different from that of the outside world, which is called "time dilation."

The disadvantage of time-space distortion travel is that severe space-time distortion causes the spatial structure to deform, causing the travel to deviate from the original trajectory.

4. Telepathy: Some special creatures can travel through different timelines through meditation, dreams, or genes inherited from alien creatures.

Qiuqiu, Yuanyuan, Dumbo, and Xiaoyan were all fascinated.

"Can we build a space channel now?" Dumbo said excitedly.

"No, when materials are available in the future, "Qiuqiu No. 1" can be transformed into a super-light starship." Xiao Huan said

"That's great." Dumbo jumped up

"We can collect any materials needed in advance." Qiuqiu said calmly

"The space stone resists space turbulence and crosses space barriers, the blue star stone has a solid shell, the ten thousand-year fine iron transforms the power system, the demon fire purifies the driving energy, and upgrades the intelligent brain system." Xiao Huan said

After everyone heard this, they were dumbfounded and dumbfounded. No one said anything. It felt so difficult!

In the evening, Qiuqiu and his friends went to the spaceship restaurant for dinner. Qiuqiu ordered a plate of fried spiders, Yuan Yuan ordered a plate of ants on the tree, Xiaoyan ordered a plate of barbecue spiders mixed with ants, and Dumbo ordered a plate of ants. A small insect platter was served, and everyone watched Xiao Huan ordering.

Xiao Huan looked at the meals everyone ordered and felt like everyone wanted to eat themselves!

Xiao Huan ordered: a plate of stir-fried octopus, a plate of sesame balls, a small hot pot, a large rabbit meat platter, a large piece of chocolate cake, and a chocolate ice cream.

Qiuqiu, Yuanyuan, Dumbo, and Xiaoyan feel that Xiaohuan wants to eat them!

"I can't stand this! I also want a small hot pot, a large mutton platter, a large piece of chocolate cake, and a chocolate ice cream." Dumbo jumped up and shouted.

"I also want."

"I also want."

"I also want."

"I want more." Everyone rushed to order for themselves.

Finally, everyone burped and sang songs and went back to the room to sleep.