Under the guidance of the old man, the assistant changed the experimental setup, he turned the camera into an electronic emitter through the computer automation system, and launched a number of electrons into two parallel slits in front of him, and the electrons passed through the slit and hit the screen behind, leaving white dots to show the movement position of the electrons on the screen.

"Please observe that if you think of the electrons as the bullets and iron sesame seeds in our experiment, will the passage of several electrons leave two parallel stripes corresponding to the slit on the screen behind them?" The old man asked Song Huiqin.

"It should be." Song Huiqin said.

"I'm afraid it won't turn out like you think! Mind you, a miracle is about to happen! The old man said mysteriously.

The experimental results showed that a large number of electrons collided on the screen, forming multiple light and dark stripes, which did not match Song Huiqin's initial prediction.

"It's strange, why so many stripes? Is there more slits on the baffle? Song Huiqin asked.

"There are still only two slits on the baffle."

Out of curiosity, Song Huiqin went to check the baffle, and sure enough, there were only two slits on it. "Probably because of the wind, the electrons should have appeared two bright stripes on the screen, but due to the influence of the wind, the electrons were blown off, so they became multiple bright stripes." Song Huiqin said.

"No wind! Even if there is wind, the bright lines should be offset as a whole, and they will still be two bright lines, not many. ”

"What is the reason?"

"It's because the electrons are interfering. Interfering electrons embody the characteristics of waves, like water waves. The old man took Song Huiqin into another room, and she found that there was a swimming pool in the room. This old man's laboratory is really strange, it's not a movie theater, it's a swimming pool, it's really a playful old naughty boy! It's no different from Zhou Botong!

The old man threw a pebble into the pool, and a circle of water rippled on the surface of the pool. The water wave traveled into the distance and encountered an obstacle, and the obstacle had two small holes near the horizontal plane, and the water wave passed through the two small holes and formed two water waves in front of it, just like dropping two small pebbles at the small hole of the obstacle. The two water waves continue to propagate forward, and the crests and crests of the water waves are superimposed, and the vibration is strengthened. The trough and trough are superimposed, and the vibration is strengthened, and the crest and trough are superimposed, and the vibration is weakened, so there are areas of vibration strengthening and vibration weakening at intervals on the water surface, and the distribution of these areas is stable, which is the interference of water waves.

By observing the interference of water waves, Song Huiqin finally understood why light and dark bright lines appeared on the screen when the electrons hit it. Because the electron wave passes through the doublet and becomes two electron waves like water waves, on the screen, the vibration of the electronic wave in some areas is strengthened, and the vibration of the electronic wave in some areas is weakened, so there are light and dark streaks. Although there are only two slits in the bezel, there are strange multiple bright stripes on the screen, which are completely different from the image formed by bullets and iron sesame seeds on the screen. Song Huiqin began to think that the old man was playing magic tricks in the experiment, and thought that the laboratory was haunted, but it seemed that it was not, and these experimental phenomena could be explained by the basic principles of physics.

"In the previous experiment, each bullet and iron sesame seed could only pass through one slit at a time, without interference, leaving only two traces on the screen; In the water wave experiment just now, the water wave passed through two slits at the same time, and interference occurred, so interference fringes appeared; The same is true for the interference of electronic waves. The old man said.

"You're saying that the emitted electrons pass through the double slit at the same time, so there is interference?" Song Huiqin asked.

"Yes, like water waves, electrons only interfere when they pass through a double slit at the same time; If there is no double slit at the same time, like a bullet, no interference occurs. The old man said.

"Uncle, through the comparison with the water waves, although your explanation is very reasonable, is there still this reason: a large number of electrons were emitted at one time in the experiment, and the electrons collided during movement, so there were a lot of interference fringes on the probe screen, what if the electrons were emitted one by one? In this case, I don't think it would be possible for the electrons to collide with each other, and there would be no interference fringes on the screen. ”

Under the guidance of the old man, the assistant fired electrons one by one at the baffle and screen. In the beginning, there were random and random bright spots on the screen, but then there were more and more electrons, and light and dark lines still appeared on the screen.

"Is there a memory between these electrons that are emitted before and after? The electron behind knows that the electron in front of it occupies a certain position, so it goes to occupy another position, thus forming interference fringes on the screen? Song Huiqin asked.

"How can electrons have memories? How can there be consciousness? This experiment tells us that perhaps a single electron is like a 'particle', and the statistical behavior of a large number of electrons is like a 'wave', which interferes when it encounters a double slit. We want to study the statistical behavior of a large number of electrons, and it doesn't make sense to study the behavior of a single electron. The old man said.

"The whole is made up of individuals, how can it not make sense to study individual electrons? A large number of electrons form a 'wave', is a single electron a wave? Does a single electron go through the left or right seam? Can you observe?" Song Huiqin asked.

"It's observable, let's continue the experiment."

Under the guidance of the old man, the assistant installed a very high-definition camera at the double-slit entrance of the baffle, which can directly observe the movement of the electrons and judge whether the electrons pass through the left or right seams. The assistant still emits the electrons one by one, and then watches the movement of the electrons through a monitor. They were surprised to find that the monitor clearly showed that the electrons had passed through one of the double slits and had not passed through both at the same time, and that many of the interfering stripes on the screen had disappeared, leaving two parallel and corresponding bright stripes.

The assistant turned off the camera and conducted another experiment, but this time there were a lot of interfering stripes on the screen, and the assistant turned the camera on again, and the screen became two parallel corresponding bright lines, without interference. As soon as the assistant turns the camera on, the interference fringes disappear; Turn the camera off and interference fringes will occur. Faced with this strange phenomenon, the old man and his assistant were puzzled.

"That's the problem we're having in our current experiments, and we can't explain it. The electrons seem to be conscious, and they can change their own motion according to whether or not we are observing. If we are looking at it, it passes through one of the double slits without interference; If we don't observe it, the electrons will pass through the double slit at the same time, interfering with themselves. Electrons play hide and seek with our eyes, our observation behavior determines the movement state of electrons, and our observation behavior is related to the consciousness formed by the transmission of images to the brain through the eyes, and consciousness can actually determine the movement of electrons? It's just incredible. The old man said.

"When there is no observation, can a small electron pass through the left and right seams at the same time? Is it that big? Song Huiqin asked.

"If you don't look at it, it's not particle-like, it's wave-like, so it can go through both slits at the same time." The old man said.

"What if I turn on the camera and don't look at the monitor?"

"If you don't look at the results of the camera monitors, the interference fringes are still there; As long as the results of the camera are known, the interference fringes disappear. The old man said.

"What if one person knows what the camera is looking at and the other doesn't, and the two people are looking at the screen at the same time, and the interference fringes are still there?"

"As long as one person knows through the camera whether the electron is going through the left or right slit, the person's consciousness will work and the interference fringes will disappear." The old man said.

"I don't think that's the case, the result of the experiment is because the electrons that are invisible to the naked eye are very small, and the camera emits photons to the electrons during the observation process, and the photons interact with the electrons, affecting the behavior of the electrons, so the interference fringes disappear. This is the perturbation of the experiment caused by photons, not the perturbation of the experiment caused by people's consciousness. Song Huiqin said.

"In the experiment, without a camera, the baffle and the double slit are emitting photons all the time, and some photons will also touch electrons, but the electrons still interfere; If a camera is installed, although the camera emits photons, our consciousness does not know the results of the camera's observations, and the electrons still have to interfere. Therefore, I think that the disappearance of the electronic interference fringes is not caused by the perturbation of photons, but by human consciousness. ”

"Is there a way to make people conscious by not emitting photons from cameras to observe the behavior of electrons? In this way, the interference of photons in the behavior of electrons can be ruled out, and people's consciousness can directly know through which slit the electron passes without passing through the photon. Song Huiqin asked.

"There is a way, our idea is to do experiments through the fourth dimensional supernatural space, without emitting photons through instruments, so that people's consciousness can directly know how electrons pass through the double slit, which is why we invited you to the laboratory." The old man said.