Chapter 347

Double slit interference.

This should be a well-known physics knowledge.

Long ago, the physical world divided its interpretation of the form of light into two schools:

One believes that light is a particle, the other believes that light is a wave.

As for the great ancient school that appeared later, I won't mention it here.

At that time, both the wave and particle factions had sufficient evidence, and no one could convince anyone.

Then physicists came up with a way:

Double slit interference experiment is used to determine whether it is a particle or a wave.

This experiment is actually very simple.

Double seam, as the name suggests.

Is to make two cracks in a partition.

Then use a photon emitting machine gun to shoot at the double slit.

Photons leaked from the seam hit the screen behind the seam, leaving a spot.

Before the experiment, the experimenters made two guesses:

The first possibility.

If photons are pure particles, the screen must leave two bars.

Photons, like those emitted by machine guns, will pass straight through the crack like bullets, so there must be two bars left on the screen.

Because photons from other angles are blocked by the plate.

The second possibility is that if the photon is a pure wave, zebra stripes will be left on the screen.

Because when photons pass through the slit, two wave sources will be formed.

The two waves vibrate and interfere with each other, the intensity between peaks is superimposed, and the positive and negative offset between peaks and troughs.

Finally, there will be complex and beautiful zebra crossings, that is, interference fringes, on the screen.

The final result of this experiment should be known to all, which verifies the wave particle duality of light.

This is actually a very, very exciting experiment.

Because its final conclusion is

The result of the experiment depends on whether you observe photons or not!

What does that mean?

For a very simple example, few people and students can understand it.

A football match is being broadcast live on your TV. A player starts to shoot.

Pause here. Can you predict whether the ball will score?

In the view of the fans, whether the goal is scored or not is related to whether the shooter is Ronaldo and Messi, to the state of the other goalkeeper, and to the money collected by the referee.

In the eyes of scientists, there is more to it.

For example, the force, speed and direction of the ball, the distance from the goal

Even the friction of turf, the decibels of fans' roar and so on.

As long as these factors are taken into account in every detail, the state of the ball after three seconds can be accurately predicted.

But both fans and scientists should recognize one thing:

Whether the goal is scored or not has absolutely nothing to do with at least one thing:

That's your TV.

No matter what brand of TV you use, no matter the screen size, definition, quality, whether you watch Migu or yang5

The ball that should be scored will still be scored. If it should not be scored, it will not be scored.

It's no use even if you're so angry that you smash the TV.

Do you think all the above is nonsense?

So listen carefully:

The experiment of double slit interference proves that under the same other conditions, whether the ball scores or not directly depends on whether you watch TV or not at the moment of shooting!

Isn't it scary?

Photons shoot from the transmitter to the double slit, just like a football shooting at the goal.

Using a camera to observe whether photons enter the seam and how they enter is like watching a goal on a TV.

You turned on the camera to observe photons (watching TV) and did not put on the camera (not watching TV) - the results of the two experiments were quite different.

This is the observer's spell.

Without looking at photons, it is a wave. At a glance, it becomes a particle in an instant.

tell the truth.

This thing really can't be studied deeply at present. If it goes further, it may even involve the difference between materialism and idealism.

It's hard to say whether there are 20 local people who are really qualified to involve this field and make an authoritative voice.

It was also because of the wave particle duality of light that Wang Qiang suddenly had a new idea:

Information is transmitted by radio wave interference.

"At present, although we don't know the details of shennian, Liu's team has long determined that it is a wave."

At this time, Wang Qiang is explaining her ideas to the crowd:

"Patriarch Wei's mind cannot be transmitted because the other end of the mind is connected to his pineal gland. Where the mind goes and what it does is controlled by his mind.

That means he is an observer.

Since it is an observer, interference is bound to occur.

It's easy to say on weekdays.

At present, Comrade Cao Yi is refining his life magic weapon, so naturally he can't resist this interference.

But we are different. We can send a carrier free self microwave! "

Students who have studied physics must remember a word:

Wavelength.

Wavelength does not mean that the wave is sandwiched with sausage, but refers to the distance between two adjacent peaks or troughs along the propagation direction of the wave.

Among all kinds of waves, the wavelength of microwave is 1m to 1mm.

That is, if the conditions are right.

Launching a microwave off the terminal is as simple as pressing the remote control at home.

Rabbits don't even need to carry any information.

As long as the frequency of the wave source is adjusted to be consistent with the spirit, the two sides will inevitably produce wave crest interference.

And this kind of interference is normal and harmless, which is quite different from the interference produced by divine mind.

It's almost like a stone falling on the water and causing ripples.

Cao Yi is like a fish at the bottom of the water. He will react when he hears the falling sound of a stone.

After all, as a former front-line policeman, his reaction ability will certainly not be slow.

As long as Cao Yi realizes that the console has found his abnormality, he will lead his mind to the gate, so as to refine his life magic weapon.

Wang Qiang's proposal was soon adopted, and the relevant work was handed over to Liu Qianxiang's team for preparation.

ten minutes later.

A frequency modulated device was transported to the console, and Liu Qianqian personally pressed the switch.

Then the crowd focused on the screen.

Hold your breath and look forward to a good news.

After about a few minutes

The line representing the mind on the screen suddenly began to change.

The previous image displayed by the psychic instrument is very clear:

Except for the soul breaking sword, all the original thoughts were taken back by Cao Yi.

And right now.

These thoughts suddenly began to spread outward.

1.5 meters, 3 meters, 5 meters

Then

Outside!

At the same time.

Cultivation room.

Cao Yi's mood at this time is also quite restless, with a sense of joy for the rest of his life.

Before the microwave on the console appeared, he had reached a state close to the limit of his body.

The soul breaking sword was successfully refined a long time ago, but Cao Yi's mind was still surging and rolling for some reason.

Cao Yi has not tried to let go of his mind.

But at this time, the mind is like a spring, which will return automatically when no redundant mark is found.

And as long as you pull, there will be as long feedback.

Under the impact of a large number of overstocked thoughts, his consciousness even blurred for a time.

Fortunately.

Just as Cao Yi approached the end of the oil lamp.

A microwave appeared.

As Wang Qiang said, microwaves do not transmit much information.

However, the wave frequency of its vibration is completely consistent with the mind, and the disturbed wave crest points to the entrance.

Cao Yi quickly used his last strength to lead the mind to the outside.

Attracted by many core marks at the door, the released mind rushed out uncontrollably.

At this time, Cao Yi is close to a semi coma. He can only let his thoughts flow out and can't control himself.

In a microscopic world invisible to the naked eye.

A large number of divine thoughts poured out of the cultivation room. At this time, nearly 20 life magic tools were given to the divine mind to choose. The divine mind was not so urgent as before.

Confused.

Cao Yi suddenly felt a big guy farther away.

Subconsciously use the last bit of strength to move the mind in that direction.

Then the whole person leaned on the futon in the cultivation room.

meanwhile.

Hua Jun suddenly burst out a rude remark:

"Lying trough, how did this boy refine the 59 that I made?"

......

Note:

Let's start here today and continue tomorrow