Why is the color red so prevalent in cinemas or theaters? And why do some discos have bathrooms with bluish light? Why are Pringles shaped like that? The world of leisure, entertainment and consumption hides many secrets in the design of its products and establishments. And now a TikToker has decided to reveal them.

Svilen is an inventor and designer who, according to his Medium profile, "creates product concepts and experiences that range from reimagining the mundane to protecting the most fundamental human rights."

To promote himself as a design scholar, and also to entertain himself, Svilen has created a TikTok account where he reveals the motive behind the design of some products, places, services...

In a short time he has already garnered almost 600,000 followers and his videos have already received almost 6 million likes.

Here is a compilation with some of the most surprising details revealed that will cause you to never see the daily routine with the same eyes again.

1. Why do classic cartoon characters wear ties?

In the 1960s, the famous cartoon producer Hanna-Barbera had the arduous task of creating 6 hours a week of series for American children. All this while the budget for said animation did not stop being reduced. At that rate, both Hanna-Barbera and other animation studios would have to close.

Luckily, both Willian Hanna and Joseph Barbera came up with an idea that allowed them to reduce the production of an episode by 7,000%: putting ties, necklaces... and other accessories on the characters that separate their heads from their bodies. This allows just animating their heads in most situations without causing an anomalous effect to viewers.

As a result, by being able to keep the bodies in one position for most of the time, 7 minutes of animation only needed 2,000 frames instead of the traditional 14,000 frames. The production of drawings became faster and cheaper, thus saving the entire industry in general.

2. Why is red predominant in movie theaters?

If you have ever noticed that almost everything in a movie theater or theater (seats, curtains...) is red, know that it is not by chance.

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Movies or theaters primarily use red because it is the first color the human eye fails to see in the dark or in low light conditions. "This makes it easier for you to focus on the film or the play instead of being distracted by the surroundings," explains Svilen.

3. Why do snipers wear their watches backwards?

In movies or video games, sniper soldiers often have their watches on their wrists upside down, so they have to face up to see the work. This gesture is inspired by the real professionals, who made this decision to prevent the glow of the watch from helping enemies detect their position.

There is another secondary reason: to prevent the clock glass from breaking at the worst possible moment and its noise from making enemies tense.

4. Why are Pringles potatoes shaped like this?

Pringles are not shaped like this for commercial reasons, at least not initially. At the time there was such a demand for these appetizers that their factories could not keep up. There were so many Pringles on the chain that they end up popping and breaking.

To avoid this problem, this shape, called a hyperbolic paraboloid, was designed so that the Pringles would not jump. Later it was discovered that this way allows to store them in an easy and original way and adds some unpredictability when you eat them. You never know how they're going to break, and that's part of their addiction.

5. Why are some establishments using the shade of pink?

There is a type of pink called Baker-Miller that was created by Alexander Schauss in the 1970s. This man discovered that this type of pink calms people down: it relaxes them, slows their heartbeat, slows down their breathing, and even dulls the violence.

These inquiries were confirmed when a prison was painted pink to find out if the inmates were becoming more peaceful. And yes: it worked. Now it is used in places designed to achieve relaxation, such as psychiatric centers.

6. Why have waiting times been reduced at airports?

At the time, the Houston Airport in Texas had a very common problem in these places: the claims area was flooded with passengers who did not know where their bags were. First they tried to solve the situation with more staff attending. Times were reduced to 8 minutes.

But the root of the problem was soon discovered: it took passengers just 1-2 minutes to get to the baggage claim area, but bags usually take 7-8 minutes. So the passengers got impatient to wait and went to complain.

Solution? The one that has been adapted to almost all airports: move the baggage claim area far enough away so that, when you get there, your suitcase is either there or arrives in nothing. This has greatly reduced complaints about it.

7. Why do pubs in London have such weird names?

If you are a regular in London, surely at some point you have wondered why pubs have such strange names as The White Lion, the Fiddler Cat or The Bat and the Baseball.

"This is because London's pubs are many centuries old, and in the old days people couldn't read," explains Svilen. "So, to stand out from the competition and be easily recognizable, pubs used original logos with animals or objects in strange poses so people could quickly identify them."

8. Why does blue light stop drug use?

Cities with serious drug problems often have blue light in the bathrooms of discotheques or nightclubs for a very simple reason.

"The blue color prevents addicts from distinguishing their blue veins. This causes many to decide to stop their dose and in this way the local has persuaded them in a peaceful way."

9. Why is there no button for the 13th floor in certain elevators?

Have you noticed the absence of the 13th floor in elevators in skyscrapers or buildings with many floors? That's because the 13th floor doesn't exist to begin with. Let's see, if it exists, it exists, but designers usually go numerically from the 12th floor to the 14th floor.

The reason is cultural: many regions believe that the number 13 brings bad luck, so hotels, skyscrapers... avoid using this number as much as possible. "Especially in Asia, where superstitions are very relevant today."

Here are 2 more elevator anecdotes as a bonus: the door close button hardly ever works (it's made so that passengers don't get bored and do something even if it's useless) and the interior and exterior of the elevator have many mirrors because that way people can fix themselves while looking (and psychologically the waiting time is shortened).