"But no matter what pet cats and dogs see, some of their abnormal behaviors are indeed likely to be caused by seeing something that we can't see. The perception ability of animals has always been a biological direction that human beings are actively exploring, and we also look forward to the future human beings being able to communicate with animals and know what they can see and what we humans can't see. Shang Minjie smiled.

"I find that I like to listen to these strange things more and more, so who of you knows what the mirage is all about?" Yin Yuting finished speaking, looking at Shang Minjie, Liao Jiayi, and Xin Ying.

Xin Ying said with a smile: "In many news reports, we have seen mirages, it always looks mysterious, every time it appears brings some mysterious pictures, sometimes it suddenly descends on the sea, bringing a splendid palace, sometimes it appears in the deep mountains and old forests, accompanied by the scene of fairies scattering flowers, this kind of mystery makes human beings both yearn and curious." According to the past view, it is a phenomenon of refraction of light, and we all know that any scene presented in front of our eyes is due to the refraction of light on the object, and then the lens of our eyes is focused into an image, and it is precisely because of the complexity of this process that we always have some errors when observing things. Some scientists have put forward a very bold hypothesis that when the light carries the information of things, even after infinite refraction, it will not disappear, but will be preserved in a special way, that is to say, after the light emitted from the earth things enters space, its information source will not dissipate, and if it encounters the obstruction of celestial bodies in the universe, it will be refracted back, and the information carried by these rays will return to the earth, and a mirage will be formed through cloud imaging, in this case, the mirage we see may be the history of the past, it is not an exaggeration to say that if the light of Qin Shi Huang ascended the throne was scattered in the universe, refracted back in a special way, we can also watch the live broadcast of Qin Shi Huang's enthronement through the mirage, which is very exciting to think about. ”

Everyone laughed when they heard this, and Wu Lang also smiled at Xin Ying and nodded.

However, there are also scientists who connect the mirage with the parallel space, because some mirage scenes cannot find any basis in real life, such as the mirage recorded in history, the so-called extraterrestrial fairyland and the so-called immortals that they see have no basis in real life, so they deduce whether the mirage will be the impression refracted by the parallel world? This statement is also interesting to listen to, because in general, scientists guess that parallel worlds and the real world exist in correspondence, and the middle is connected by quantum symmetry, and in many cases we cannot exert influence, nor can we achieve contact between the two, but through the dream environment or even some kind of quantum induction, we can feel each other. The same mirage is a manifestation of space-time bending, at some moment the universe has changed, resulting in the loosening of space-time between the two, then there is a mirage, and it is the reflection in the parallel world, so we see some more magical scenes, it is caused by the distortion of space-time, scientists can not be sure for the time being, after all, this mysterious universe, it itself is unpredictable, when human science and technology can not be studied thoroughly, it is inevitable that there will be some various imaginations, to consume it, but mirage, it is indeed a mysterious phenomenon, while it shows its own beauty, also implies a lot of great secrets of time and space, all of which will one day be solved. Xin Ying said with a smile.

"Then can any of you tell me what the difference is between science and theology?"

Liao Jiayi and the others were stunned when they heard this, and they were silent in thought.

Wu Lang said with a smile: "In science, only what is proven to exist is real. Theology, as long as it cannot prove that it does not exist, then it really exists. Science, theology, philosophy, have never been opposites. ”

"Xiao Langlang, after you finish, don't say half and leave half!" Yin Fat glared at him.

Wu Lang grinned at him and said, "To give you the simplest example, that is, does "God" exist? From a scientific point of view, human beings cannot prove the existence of God at present, so whether they think that God exists or does not exist, it can be scientific conjecture; but in the theories of some theologians, since it is impossible to prove that God does not exist, then God exists, and everything is either right or wrong, black and white. All scientific theories are human scientists, and the theories summarized and summarized are "falsifiable". For example, in Einstein's theory of relativity, he put forward a conjecture about "gravitational waves", believing that gravity interacts between objects in the form of gravitational waves, and the speed of gravitational waves is the same as the speed of light, but until scientists discovered gravitational waves in 2017, this was just a conjecture, and it became a scientific theory until gravitational waves were confirmed by human beings. ”

Liao Jiayi also smiled: "There are many wonderful phenomena in the world, which seem to be very bizarre and beyond common sense, but in fact, these phenomena can often be explained by the physical laws in nature. The ingenuity of our human beings is incomparable to other animals, you can compare to the magical "Rupert's tears", the head is 20 tons and cannot be broken, and the tail will be shattered with a slight pinch, which fully demonstrates the human mind and thinking. ”

"What is Rupert's Tears?" Wu Lang couldn't help but ask curiously.

"Rupert's Tears" is a hard substance made of glass. Many people may think that glass is no more fragile, some can even be broken with a punch, but the head of this "Rupert's Tear" is extremely hard, and can even withstand the huge pressure of an 8-ton heavy object, Rupert's Tear is actually a glass droplet, when melted into liquid glass, due to the effect of gravity, it drops into cold water and cools into a solid state, it can form a Rupert Tear, which looks like a tadpole, the head is very round, but it drags a long tail, and " The "Achilles heel" of Rupert's Tears, which is the most important "life", is also its tail. Regardless of the fact that Rupert's Tear's head can withstand the pressure of a 20-ton heavy object, as long as you put your hand on its tail and pinch it a little harder, the entire "Rupert's Tear" will turn into powder, as if it exploded from within. Someone once did an experiment to shoot the head of the "Rupert Tears" with a pistol bullet, but the "hardness" of the "Rupert Tears" was beyond imagination: the bullets that hit it shattered into shrapnel, while the "Rupert Tears" itself was still unharmed, and then the experimenter pinched its tail with his hands, and sure enough, Rupert's tears shattered in response to the sound and turned into a glass slag. Liao Jiayi said with a smile.

"What's the reason for that?" Xin Ying asked.

The reason for this phenomenon is actually the "crack propagation principle", when the glass that melts into a liquid state is dripped into the water, the surface of the glass droplet in contact with the cold water will quickly solidify into a solid state, but the glass inside is still in a liquid state; when the glass inside also condenses into a solid state, due to thermal expansion and cold contraction, the volume will become smaller, and it will be "pulled" The outer solid shell makes the appearance very hard, but although the head of Rupert's tears is very hard, the slender tail is still the same as ordinary glass, there is no difference, and when people pinch its tail hard, the complex force inside the "Rupert's tears" will be quickly released, thereby destroying its entire structure, according to the high-speed camera shooting, when Rupert's tears are broken, the transmission speed of the crack can reach close to 2000m/s, so the whole looks like it is in a "moment" Smash the same, that's where humans are smart. After Liao Jiayi finished speaking, she laughed.