In the deep and dark underwater world, the two teams finally met, like a happy ending that they had been waiting for for a long time.

"Ancestor! Alliance leader, Yichenzi seniors! I didn't expect you to come to support in person, the juniors are really flattered!" Hua Feng led everyone to step forward quickly and bowed to several seniors. Because they also had some water amulets on their bodies, their movement in the water was not hindered in any way.

"Okay, don't say polite words, we are also entrusted by others, no matter what, we can't let the young geniuses of Huaxia sacrifice for no reason. Zhang Sanfeng stepped forward to help Hua Feng and the others, and continued, "Right now, it's okay, let's go back to the base first and then think about it in the long run." ”

"Well, everything is according to the orders of the seniors. Although Wang Yue hadn't seen Zhang Sanfeng with his own eyes, the look and bearing of the person in front of him was obviously a great person, since Huafeng's 63-level Yuan Emperor cultivator was so respectful to him, he couldn't slack off.

Shuang Ning, Li Long, Bai Feng, and Yun Meng also stepped forward to greet them one by one.

"You see, I didn't lie to you, this person has been sent to you intact, from now on the well water will not interfere with the river water, here is a little sample of the magnet stone, you can also take it!"

An ostrich egg-sized object with fluorescent inscriptions and intricate words appeared in front of everyone from the void, and Zhang Sanfeng motioned for Hua Feng to take it on his behalf.

"So, farewell!" Dan Qiusheng looked at Zhang Sanfeng with a dusty chin and just bowed slightly, then turned around and walked towards the sea, just hurriedly explained such a sentence and then floated to the sea together.

An hour later, everyone on the moonlit sea was flying in the sky, and the target point was Lin Chong's logistics base.

Feeling the long-lost sea breeze, air, moonlight, and the mountains faintly visible in the distance, Hua Feng felt as if these few hours had been a long time.

After talking along the way, Zhang Sanfeng told him that those ghost ships scattered underground were likely to be the undersea houses they made, after all, although the sea people evolved very quickly, they still needed a place to live, and the pressure on the bottom of the sea was high, and it was difficult to build a dwelling.

Those ownerless ships were modified to become various dwellings or warehouses. As for the suspicious lost crew members that Hua Feng felt when they passed by, eighty percent of them were also converted into free labor and hard labor by them using unknown secret methods, and these people can no longer be called human beings.

Therefore, sometimes some things seem cruel and abnormal, but they can't take care of it, since the times and various civilizations have developed to today's place, only by following the evolution of history can they survive in the cracks, not to mention that people are already not the same civilization as us.

As a continent that once disappeared, the seeds of civilization that they gathered together are no longer relevant to the changes in this world. As long as they don't do things that endanger Huaxia and human beings, they have no reason to take care of other people's affairs. If necessary, perhaps, those people can contribute to the fight against the apocalyptic apocalypse of 2021. After thinking about it, Hua Feng couldn't help but think about it again, beside her was Yun Meng's good-looking side face, the breeze blew her hair, and her jewel-like eyes looked fixedly ahead.

Half an hour later, the shore base finally arrived, and in a blink of an eye, dawn was approaching, and the fish belly on the horizon was getting white.

On the other side of the world, in the Academy of Sciences of Dawning College, a world-class university, several gray-haired scientists are talking about physics, and they are all the top scientists in the world.

As an admirer of Albert Einstein more than 100 years ago, Professor Robert has been trying to find a way to maintain spatial stability from Einstein's theory, and after looking around, he said: "A computer based on the theory of general relativity simulates the process by which a star collapses into a black hole and releases gravitational waves, and the general theory of relativity predicts the existence of a black hole, that is, when a star is dense enough, its gravitational pull distorts a region of space-time so that light cannot escape."

In the currently widely accepted stellar evolution model, it is generally accepted that the final stage of the evolution of massive stars includes the evolution of stars with about 1.4 solar masses into neutron stars, and the evolution of stars with several to tens of solar masses into stellar mass black holes.

Supermassive black holes with millions to billions of solar masses are thought to exist regularly at the center of every galaxy, and their existence is thought to be important for the formation of galaxies and larger cosmic-scale structures. ”

"One of the most important properties of compact stars in astronomy is their ability to convert gravitational energy into electromagnetic radiation with great efficiency. The accretion of interstellar gas and dust by stellar-mass black holes or supermassive black holes is thought to be the mechanism for the formation of certain very bright objects, with well-known and diverse examples including active galactic nuclei at the galactic scale as well as microquasars at the stellar scale.

In certain cases, accretion excites extremely strong relativistic jets, which are highly directional high-energy plasma beams that can be ejected at speeds close to the speed of light. General relativity has played a key role in modeling these phenomena, and experimental observations have provided strong evidence for the existence of black holes and the predictions made by general relativity.

Black holes are also one of the important targets of gravitational wave detection: the merger process of black hole binaries may emit some of the strongest gravitational wave signals that can be received by detectors on Earth, and the chirped signal before the binary merger can be used as a kind of "standard candlelight" to estimate the distance at the time of merger, and further become a means to detect the expansion of the universe on a large scale.

The gravitational waves radiated by the process of falling into a supermassive black hole such as a stellar mass black hole can directly and completely restore the space-time geometry information around the supermassive black hole. Renowned astrophysicist Peggy Clive added.

AS A PROPONENT OF HAWKING, PHYSICIST KELVIN FERGUS REITERATED HAWKING'S 'GRAY HOLE' THEORY: "MANY YEARS AGO, K. BRECHER OF BOSTON UNIVERSITY IN THE UNITED STATES PROPOSED THE POSSIBILITY OF A GRAYHOLE IN JUNE 1993: A MASSIVE STAR WOULD NOT COLLAPSE ENOUGH TO FORM A BLACK HOLE, BUT IT WAS POSSIBLE TO FORM A STAR WITH A SMALLER RADIUS AND GREATER DENSITY THAN A TYPICAL NEUTRON STAR.

Brecher argues that black holes are more than three times the mass of the Sun, thus eliminating the need for black holes in some cases. Gray holes have different properties from normal neutron stars, which comes from the different degrees of collapse of the two.

General relativity predicts that a star that collapses enough will form a photonic layer around its periphery, in which light rays orbit the star, and that the photonic layer of a typical neutron star has a smaller radius than the former, and that the strong gravitational pull of the collapse also causes the leaking radiation to lose energy.

Brecher's calculations show that only 40 percent of the radiation emitted from the ash hole can leave the ash hole and radiate into space due to the above two effects. Hence the name Grey Hole.

Of the six X-ray binary star systems that have been discovered (two of the aforementioned Cygnus X-1 and LMCX-3 are the above), a star larger than three times the mass of the Sun that is invisible in the visible band may be a faint gray hole rather than a black hole. ”

"At present, we urgently need to gather a group of world-class young people around the world to find a way to completely smooth our spatial imbalance in the black hole theory and the gray hole theory or whatever! I don't know when, the headmaster, whose hairstyle resembles Einstein's, walked in.