Xin Ying smiled: "Speaking of human beings, I think of an interesting thing, the mysterious inner world is one of the common themes in science fiction and movies, in the 50s of the last century, some foreign scientists proposed in the book "The Mystery of Ancient South America" that there is a geocentric civilization in the interior of the earth that is far more developed than human beings, and a new study shows that there are really two vast continents in the depths of the earth, and there may really be intelligent species similar to our human beings!"

"Wow, what a harvest this morning!" Liao Jiayi habitually exclaimed.

"It's really a long experience to be with you, I feel that I have too much experience, Sister Xin, tell me quickly, what's the situation?" Yin Fat lit two cigarettes and handed one to Wu Lang.

Wu Lang took the cigarette, took a deep breath, and looked at Xin Ying.

Xin Ying smiled slightly and said: "The structure of the earth's interior is similar to that of a boiled egg, the outermost is a thin crust, with an average thickness of only 17 kilometers, and below the crust is a mantle about 2,865 kilometers thick, and under the mantle is the hot core, with an average thickness of about 3,400 kilometers and a temperature of more than 5,000 °C." Seismic imaging studies have revealed that at a depth of 2,900 kilometers below the surface, where the solid mantle meets the metallic liquid core, there are two solid rocky continents, one of which lies beneath Africa and the other beneath the Pacific Ocean, which have unique physical properties that are very different from the surrounding mantle in terms of density, temperature and mineral composition. ”

"Scientists have previously speculated that the continents in the deep mantle come from subducted oceanic plates, but new research suggests that they may have been formed by the solidification of ancient magmatic oceans in the early days of Earth's formation, dating back 4.5 billion years, almost as old as the Earth itself, and that these continents were not only immune to the vast majority of volcanic activity in Earth's history, but also most likely unaffected by the massive shocks that produced the Moon. ”

"Geologists typically take rock samples from volcanic regions such as Hawaii and Iceland that are formed by the cooling of the red-hot mantle plume produced near the Earth's core after rising to the shallow mantle, and by measuring specific isotopes in the igneous rocks, scientists can trace their origins. ”

Wu Lang nodded, took another deep puff of cigarette, slowly exhaled the smoke in his mouth, and looked at Xin Ying with slightly squinted eyes.

"Some igneous rock samples have a high abundance of helium-3, and this primitive element was produced during the "Big Bang", so the samples with higher helium-3 content are also more ancient, and the researchers used computer models to analyze how these original samples reached the earth's surface from the mantle, and the results showed that they probably came from mysterious continents hidden deep in the mantle, and the possibility of species in them is very high. ”

"Could it be 'space-time distortion'?" Liao Jiayi frowned slightly and said suddenly.

"Jiayi, what do you mean?" Xin Ying was stunned when she heard this.

"It's nothing, I was just distracted, thinking about something else. Liao Jiayi hurriedly smiled.

"Since I said it, let's popularize it for everyone, what is "space-time distortion"?" Yin Fat Man smiled.

Liao Jiayi also smiled: "I heard from a friend who is engaged in scientific research, time is very fair for everyone, regardless of identity or status, everyone on the earth will experience the same time, but on the earth, is the flow rate of time really the same? Scientists have some different opinions, "space-time distortion" may really exist, and the mass and speed of objects will have an impact on time. ”

"The relationship between time and gravity is very close, in the special theory of relativity, it is predicted that when the mass of an object reaches a certain point, it will produce an unimaginable gravitational force, which can directly affect space, resulting in the range of this gravitational field, light rays will be affected, bent by a strong gravitational force, modern scientists have proved that this phenomenon of space-time distortion does exist. ”

When the star is towards the end of its life, the internal reaction slowly stops causing the gravitational collapse, at this time there will be a "supernova explosion", if the mass of the planet is high enough, it will become a "black hole", the gravitational pull of the black hole is enough to directly prevent the escape of light, the black hole itself is a "space-time distortion" evidence, but because the gravitational pull of the black hole is too strong, the light cannot escape, so we have no way to observe the phenomenon that occurs in the black hole. ”

Yin Yuting, Yin Fat frowned slightly when he heard this, and it seemed that it was difficult to understand what Liao Jiayi said.

Wu Lang, Shang Minjie, and Xin Ying nodded lightly, indicating that they understood what she said.

Liao Jiayi pondered for a moment and continued: " Since the black hole has not been observed, scientists have set their sights on the second most massive celestial body in the universe, the body of the neutron star, the neutron star itself is also the product of the collapse of the star, the star will expand first and then compress if the mass is enough when it is destroyed, but because the mass is not enough, it cannot explode again to form a black hole, and can only maintain a state of compression, and the neutron star was born, because of its ultra-high mass and rotation speed, so that the neutron star will periodically radiate strong energy into the universe, which we call "gamma-ray bursts" Scientists have determined the positions of many neutron stars based on this phenomenon. ”

In the future, neutron stars may become "navigation" for interstellar travel, because we have no direction in the universe, but we can rely on high-energy objects such as neutron stars to determine their positions, and at the same time, in the vicinity of neutron stars, light will be "bent" due to the huge gravitational pull of neutron stars, instead of being swallowed directly like black holes, and there are some linear tailing around neutron stars, which is a good proof of the existence of "space-time distortion". ”

"I don't understand, can you make it simpler?" Yin Fatzi interjected.

Everyone couldn't help but laugh when they heard this, Liao Jiayi nodded, and said with a smile: "Our universe is a multi-dimensional universe on a "flat surface", and the space-time we perceive in our lives is a "four-dimensional space-time", and a timeline is added on the basis of a three-dimensional basis, although we can't change time, but this also proves that time and matter are directly related. Scientists in order to verify the view in the theory of relativity, carried out the famous "atomic clock" experiment, the atomic clock is a very accurate timekeeping tool, even if the time has passed a thousand years, you can control the error within one second, an atomic clock on the ground, and then put four atomic clocks on the plane, so that the plane from different directions to travel around the world, to avoid the error due to the earth's rotation, in three days after the comparison of time, to see if there is a deviation. ”

"The results of the experiment are surprising, the time on the atomic clock has different degrees of deviation, and the estimate given by the theory of relativity is not much different, time will be affected by speed and gravity, but we don't feel it, although the plane is moving rapidly at high altitude, the time deviation is not large, but there are many satellites in space, some navigation satellites want to point us in the direction, if you don't calculate the deviation value, then the satellite moves in the air for 24 hours, it will cause a deviation of 11 kilometers, we can only calculate again according to the formula in the theory of relativity, offset this deviation to get an accurate navigation location。 ”

"The speed of time is different, will it have a big impact?" Shang Minjie asked suddenly.

Liao Jiayi shook her head and smiled, and said: "This will not happen, even if the time flow rate of two people is different, one person has passed one second and the other person has passed two seconds, this does not mean that the first person will not experience the second second, but it is just a little slower, and the time is still very fair." Extending the problem of space-time, a different concept will emerge, since time is an axis, can we reverse time? "Faster-than-light" may be a possible solution, but "wormholes" may be simpler, there may be wormholes in black holes, and these wormholes themselves also have a large gravitational pull, and scientists believe that only by using antimatter can these gravitational forces be counteracted. ”

"At present, antimatter and wormholes are phenomena that stay in the theoretical stage, we have no way to confirm, we can only find some similar phenomena in the universe, but the magical phenomenon of "space-time distortion" has been directly proved by a lot of evidence, if it can be used in the future, I believe it can change our cognition, bring some new concepts of time to use, through different time flow rates, perhaps can accelerate the development of science. ”