"The biggest difference between movies and what we see in our lives is that they are not continuous. ”

Sheldon smug began to give Emily and Leonard Cops,

"Just as discrete particles can be stacked into a complete object, a film is made up of similar images frame after frame. Because of the temporary nature of human vision, when we see a continuous 24 frames of a picture played in one second, our eyes will automatically help us string it together to form a smooth continuous picture, which is a movie!"

"That's why cinema is also known as 'the art of 24 frames'!"

Emily sighed,

"But what does this have to do with that female ghost?"

"Absolutely!"

Sheldon was confident in his guesses, and he looked at Emily and Leonard like a good teacher.

"Think about it, if there are 24 frames in a second, our eyes can help us string them together, but what if only 8 of them have the female ghost in them, and the other 16 frames don't?"

Looking at Leonard and Emily's thoughtful looks, Sheldon directly said the answer,

"The image of the female ghost will be diluted by other images in our eyes, and eventually we will not be able to see it!"

"But on the other hand, we actually see the image of a female ghost after all, and even if we don't notice it with our eyes, we will feel it in our heads. ”

Leonard now understands too,

"That's why the first time we watched it, we always felt that something was wrong. ”

"Those are the actual shots of the female ghost. ”

Emily suddenly realized, but soon became confused again,

But even then, it only explains why we didn't feel right the first time we watched it. But when we brush it a second time, why can we see that female ghost again?"

"This ......"

"That's also using the human eye's visual retention!"

On the way home, Charlotte is also explaining this final technical mystery to Charlize,

"The fact that the first time you watched it, you couldn't see Alexis in it, and although it was a little strange, it wasn't a difficult technique in nature. When many TV stations broadcast football games, they will occasionally insert a few frames of scenery in them, although they are limited to the number of frames and cannot be seen by everyone, but they can be used to calm the mood of the fans who are easily restless. ”

"In contrast, it is the most difficult to let the audience of the second brush see the picture about Alexis. ”

Speaking of which, Charlotte shrugged her shoulders,

"Anyway, as far as I know, with normal technology, it's impossible for people to see completely different images when they look at the projection of the same set of films—"

"Unless you're using two different sets of films!"

Charlize expressed her guess, and she had actually been curious about this question for a long time.

"In that case, in addition to the audience of the second brush, those who watch it for the first time will also see it!"

Charlotte smiled and shook her index finger,

"In this, in fact, there is a spell applied. ”

"Spell!?"

"To be precise, it should be hypnotism, but ordinary hypnotists who don't know magic can't perform hypnotism through film no matter how powerful they are. ”

Charlotte shrugged her shoulders,

"So, it's okay to call it a spell. ”

"Hypnotizing the audience through a movie screen?"

Charlize's curiosity was really hooked now,

"Can you tell me what exactly you're hypnotizing?"

"Of course. ”

Charlotte had no intention of hiding it,

"I know how to spell, but I'm not a master when it comes to hypnosis. At the very least, I don't have the ability to hypnotize a person and make him think that he is a duck. What I'm good at is just hypnosis to make people's memories of sounds and images deeper and more real. ”

- It is only with the help of this hypnosis that I can impress others with the spells that I have made up for the sole purpose of deceiving people, and then I can believe that the spells are really magical.

- And what's even more ridiculous is that if they believe it, the spell will really have magical powers, making my spells more effective.

Charlotte complained in his heart about the mystery and idealism of his spell system, but he didn't explain it to Charlitch,

"In this 'Fatal Bend,' I'm just hypnotizing the viewer's mind with the images of the female ghost, Alexis, appearing—even if they don't notice it the first time they see it. ”

"But what's the point?"

Hearing this, Charlize felt even more confused.

"Of course it makes sense! Imagine if you remember a scene from the movie well, does that mean that the next time you watch it, just see the scene in front of you, you will know in advance that the shot is coming?"

"This ......"

Charlize tilted his head and thought for a while,

"Looks like that's really the case!"

"Under my hypnosis, the viewers who watched it once didn't notice Alexis's footage, but their minds, or subconscious, remembered those images deeply. And when they watch it a second time, the images from their subconscious memories will appear in advance, interstaggering with the images playing on the big screen, and finally form a visible picture of Alexis. ”

"Staggered?"

Charlize's expression was visibly dazed.

"Don't understand?"

The blonde nodded.

"Let's put it this way, it's like a comic strip that was originally only 12 pages, and I copied it with one more copy and mixed it with the first one, page to page, so that the number of pages was doubled. ”

Charlotte gave a simple example,

"Of the 24 frames that were originally played in one second, Alexis would only appear in 8 to 12 frames, and at this time, because the number of frames was too small, it was diluted by other frames, and the eyes naturally couldn't see it. ”

But when those viewers who have seen it once watch it twice, the images in their subconscious memories and the images they saw the second time add up, and there are 16 to 24 frames of Alexis appearing in one second. This frame rate range is gradually visible to the human eye. ”

"In other words, it is a kind of hallucination-like picture that combines the picture in people's memory with the picture they see in front of them?"

Charlize tried to summarize,

"Why do I think this is brain supplementation?"

"It's not wrong to say it's brain supplement!"

Charlotte readily admitted Charlize's claim.

"My technique is originally the result of the subconscious memory of the human brain and the visual residual effect of the human eye. ”

"Actually, this phenomenon is also very common in reality - sometimes we look at something, we will have a preconceived idea of what it is, and then when we look at it with our eyes, we will often feel that it is very similar - this is the result of the combined effect of human vision and subconscious memory, and it is not much different from my technique!"

"I see!

Charlize suddenly realized.