Mechanical waves?

Mo Yu didn't react to what this meant for a while, but then Lou Qi and Jiang Zi pushed the contrast-enhanced ultrasound equipment over.

"Ultrasound?" Mo Yu understood, "You guys gave it a B-ultrasound?" ”

"MRI and CT don't work, but you can only go to B-ultrasound." Lou Qi said, "But not only B ultrasound, but also C ultrasound, D ultrasound, EF ultrasound are useless, mud cows enter the sea, and even sound waves can't escape this terrible cage." ”

The use of ultrasound to peer inside materials and structures is a common method, but this method completely fails in the face of black balls.

They don't even know if the ultrasound is completely absorbed, or if it doesn't enter the sphere at all, if this black ball is an inseparable rigid body - everyone knows that there is no real rigid body in the world, but the appearance of the black ball shook everyone's worldview, before the appearance of the black ball, people also believed that there was no standard sphere with a mass of e and a diameter of ten centimeters in the world.

If the black ball is really a rigid body, without any deformation or distortion, then the mechanical waves will not be able to propagate inside it at all.

With the conditions in Cassini Station, Hu Donghai was helpless and could only stare dryly.

But even if the sphere is sent to Earth, there may not be any good way for the people on Earth to do it, all they can do is use more sophisticated microscopes, use shorter wavelength rays, use higher energy particle beams - the black sphere has proven that this method is ineffective, and with the logic of human observation, they will never be able to see into the internal structure of the sphere.

Once again, Muyu realized the crudeness of human technology under the surface of high technology, a ball that stumped everyone, and all it did was remain silent - whatever you throw in, I won't respond.

"It's better to say it's a ball than a hole." Liang Jing suddenly said, "The X-rays and γ rays we shot in may have run to the other side of the galaxy at this time." ”

"But it's a sphere." Mo Yu asked, "How can it be a hole?" Black holes? ”

"No, no, no, it's not a black hole, it can't be a black hole - if it's really a black hole with a Schwarzschild radius of 5 centimeters, if nothing else, the mass of this ball should be 2.25×10∧25 kilograms, which is 225 trillion tons of weight, which is equivalent to the sinking of 3.75 Earths, and if its event horizon radius is much less than 5 centimeters, then it is impossible for any electromagnetic waves to escape." Liang Jing waved his hand, "I mean the hole of the Eight Classics, the hole of the hole." ”

"But it's really a ball, how can it be a hole?" Mo Yu didn't understand what Liang Jing meant, wasn't this ball in front of everyone's eyes?

A standard, ten-centimeter-diameter sphere, why is it said to be a hole?

"If it's really a ball, then the non-vomiting property violates the laws of conservation of energy and thermodynamics, so it can't be a ball." Liang Jing explained.

"But it's a ball." Acquiesced to the third repetition.

"If it's a ball, then it's against conservation of energy and thermodynamics, so it can't be a ball." Liang Jing also began to repeat, "The conservation of energy and the laws of thermodynamics will not allow it to exist." ”

"Don't worry about not allowing it to exist, the problem is that it already exists, this is an established fact, this ball is still dug up by you." Mo Yu stepped forward and pointed to the black ball in the box, "See for yourself, what is it that is not a ball?" The theory in the eyes and books of all of us, which one do you believe? ”

"Theory, of course." Liang Jing was quite crisp and unthinking.

Mo Yu was silent for a few seconds, and she suddenly understood the rigid brain circuits of these science and engineering men, and if the observed reality contradicted the existing theory, then they would deny the reality.

The presence of black balls violates the conservation of energy and thermodynamics.

It is impossible to go wrong with the conservation of energy and thermodynamics.

So it's reality that's going wrong.

Liang Jing is still a professional in geology and structural physics, and if he were a theoretical physicist standing here, he would probably have already taken out a pen and paper and a computer to calculate, trying to find a black ball constant and put it on the head of the black ball, so that the existence of this ball conforms to the existing theoretical model.

There is always only one coefficient between the experimental results and the theoretical predictions.

There's nothing that a coefficient can't solve.

If there is.

That's just because the coefficient isn't big enough.

"In order to follow the established theories, can you who are engaged in physics refer to the deer as a horse and open his eyes and tell nonsense?" Acquiesced support.

"It's not that you are talking nonsense, you don't understand what I mean...... The hole can also look like a sphere. Liang Jing pinched the protective suit on his body and trembled, "Let me ask you, if the clothes on my body are torn, what shape does it look like?" ”

I was stunned.

"Round."

"A hole in three-dimensional space is two-dimensional, a circle, which is easy to understand, and if there is a hole in four-dimensional space, then it is three-dimensional in our eyes, that is, a sphere." Liang Jing said, "Can you understand that? It looks like a sphere, but it may actually be a hole, nothing more than a high-dimensional hole. ”

Mo Yu was slightly taken aback, this level of discussion began to be beyond the scope of her knowledge, theoretically the projection of the void in the four-dimensional space in the three-dimensional world is indeed spherical, but this is only the result of mathematics and physics on paper, in the final analysis, it is speculated, no one has really seen what the four-dimensional space is like.

Liang Jing's conjecture is very bold, but I am afraid that even he himself will not be able to verify his guess.

Mo Yu glanced at Hu Donghai beside him, who was leaning against the biological safety cabinet, where the pestle was motionless, staring at the black ball and not knowing what he was thinking.

When Liang Jing said that the ball was a four-dimensional hollow, he didn't speak, and his expression didn't change in the slightest, maybe Hu Donghai had already thought of this, but he was silent.

Lou Qi stood opposite, frowning, looking like he was trying to think, but he didn't have a clue in terms of his expression - because he looked as painful as constipation, physics was not his specialty, and he probably couldn't think of anything if he wanted to break his head.

And Jiangzi......

Jiang Zi is playing with his mobile phone.

Have a lot of fun.

"Comrades, for the time being, this is the end." Hu Donghai broke the silence, he straightened up, and held his glasses, "Fantasy can't think of any results, we lack powerful means of observation, and we still need to listen to the opinions of more experts...... And Moyu, didn't you come to us for something? ”

"Huh? Oh oh oh oh yes, there's something going on. Mo Yu was stunned, then came back to her senses, and nodded busily, Hu Donghai would almost forget about the business if she hadn't reminded her, "Video!" CCTV is urging us to shoot videos! I want to give New Year's greetings to the people of the whole country! Go up, go up, go up for me! The others are still waiting up there! ”