There is a maid-in-waiting event on the wall of the Forbidden City. What is the principle that scientists explain that ferroferric oxide can be recorded when it meets lightning?

/kloc-one day in 0/992, there was lightning and thunder, and it was dark. Several ladies-in-waiting suddenly appeared on the wall of the Forbidden City, talking and laughing, scaring tourists to flee everywhere. This is not a movie!

Lightning and thunder are scary enough, and several ghosts appear. No matter how bold you are, you can't stand this scare!

It is said that many tourists are frightened, taking videos and photos with trepidation, and their hands are shaking inappropriately!

Afterwards, some experts analyzed that this is because the palace wall contains ferroferric oxide, which just forms a magnetic field under lightning, recording the walking situation of maids; Lightning weather is coming, stimulate the magnetic field again, and then play back the recorded scene!

The principle is the same as that of tape recorder and camera playback.

Fake!

The maid-in-waiting was telling jokes and strolling on the palace wall.

In the Forbidden City, many people travel to see the world and court life. By the way, touch some expensive gas, but there is a place for Long Mai to breathe in the imperial city.

The most attractive thing is the forbidden area of the palace, where ordinary people can finally set foot!

The palace where the emperor works and the harem where concubines fight are no longer scenes in the novel, but the land he stepped on, which is a little proud.

1992, many tourists with such a mood are also very satisfied. The only bad thing is that the weather is not very good, and it is dark. Then there was thunder and lightning and a heavy rain was coming. Tourists can't help sighing a little unlucky!

It hurts to drink cold water when people are unlucky!

Disturbed by thunder, my heart is creepy. Suddenly, several ladies-in-waiting appeared beside me, talking and laughing, walking forward, taking small steps, and the palace shoes creaked!

Suddenly the bird's nest was bombed, and the tourists fled in all directions until they ran away. It is said that bold tourists also took videos or photos at that time.

At that time, the "92 maid-in-waiting incident" spread with great fanfare, and many people embellished the various supernatural phenomena in the Forbidden City, causing a haunted wind.

For this reason, some experts ran out to refute the rumor and explain the reasons: the palace wall of the Forbidden City contains magnetic powder (ferroferric oxide), which forms a magnetic field in lightning weather, just recording the walking situation of maids; 1992, the day when the tourists saw the ladies-in-waiting, it happened to be a lightning weather, which stimulated the magnetic field and just played back the recorded scene!

It turned out to be a rumor.

The expert's explanation is scientific, but the facts can't stand scrutiny. Therefore, it can only be an absurd farce. The initiator was bored to make up stories, and the people who ate melons ate the skin of the ground.

Why do you say that?

Insufficient photo conditions

1992 photographic equipment used old cameras and fools, and the popularity of digital cameras and camcorders was in the middle and late 1990s.

As for the mobile phone, it's still in the brick? Cell phone? In the new era, making phone calls is as powerful as aliens, and there is no photo function at all.

Immature network conditions

1992 has a local area network at most, with limited communication. You know, China didn't officially access the Internet until 1994, and the number of users after one year was only a few thousand. Therefore, in 1992, news can only be spread through newspapers and periodicals, and the supervision of newspapers and periodicals is very strict, so it is impossible to spread it at all.

The photo is a newspaper clipping.

The original photo actually has a panoramic view, and the maid-in-waiting looks at the camera, and there are obvious male workers next to it, obviously making a movie!

What the hell is ferroferric oxide?

Ferroferric oxide, a toy magnet when we were young, was used to help the elderly find underground needles. You can also make the little iron man on the table move. Isn't it amazing that a horn magnet was removed from the broken radio under the table?

Ferroferric oxide is often used as pigment and polishing agent, and can also be used to make recording tapes and telecommunications equipment. When the tape recorder came out, it was amazing at that time. Is there a self hidden in this tape recorder?

The working principle is actually very simple.

The walls of the Forbidden City contain ferroferric oxide. When lightning strikes the wall, the generated current activates the ferroferric oxide on the wall and generates a magnetic field, which can record the sound and image at that time.

When the lightning weather happens again, the magnetic field is activated and just appears on the previously recorded node. The picture at this time is what it was recorded at the beginning.

To put it bluntly, it is a video recorder formed by nature, which coincidentally recorded the picture at that time.

For example, paranormal reported a similar story. People heard the sound of a fight, which lasted for several minutes, causing people's panic.

Later, it was found that an ancient battlefield was also a thunderstorm, and the explanation was similar.

All kinds of similar supernatural phenomena uploaded on the Internet are mostly caused by thunderstorm weather, and then it is not surprising that everyone takes it for granted. It's just a magnet, so it's no surprise!