Deaths in movies cannot actually occur

Films usually deal with things that are dangerous to life in two different ways. Either the human body is supernatural and the bullet wounds do not affect and the bombs exploding behind you can only throw you in the air and help you jump, or the second case in which the human body appears as a large piece of marshmallow: each Something can kill you and there is no force for the human body to resist.

Of course, reality is different from these two extremes, so explosions are not harmful on the one hand, but at the same time, many movie deaths are very far from reality, whether because the human body is too powerful to be killed by these things, or they are not already occurring.

Here we will look at some examples of this.

You can't freeze someone to death by pouring liquid nitrogen on them
For films, liquid nitrogen is the ideal killer of humans and even supernatural beings. This liquid, which is at -196 ° C, usually appears as an ideal thing to subjugate humans, and pouring or spraying some of it on people will immediately freeze them and turn them into a piece of fragile ice, so that they only need For one fell swoop to crumble into little bits scattered all over the place, this can be seen in many movies like Mindhunters and Jason X and even being used to pause the T-1000 in the popular Terminator 2 movie.

The truth is something very different from what appears in the movies. Although liquid nitrogen is more dangerous than tampering with indifference, its effects do not reach a part of what some people even imagine. If a small amount of it is sprayed, for example, it will soon evaporate and most of what it feels is a person Of cold air, but even for a larger amount, such as throwing a few liters of nitrogen, it will not be enough to freeze you or even stop you from moving and the worst thing that may happen is that you are exposed to some frost burns just no more.

The reason for this is very simple, unlike the clips that usually appear on YouTube to destroy a flower or banana, for example, after placing it in liquid nitrogen, the human body is much larger on the one hand, and much hotter as well, and that we are not made of spaced chips like the flowers, so let us reach the stage to crash with a blow We will need a huge amount of liquid nitrogen and a very long time as well, so the cooling of the human body is not so easy at all, especially since liquid nitrogen is very fast evaporation.
In addition to the main cause - which is the heat and shape of our bodies - it is possible that liquid nitrogen can be poured on us without causing any damage as a result of the effect of a famous physical phenomenon. This is because, at the beginning, a small amount of water evaporated and formed a gas cushion underneath that acts as a thermal insulator, and for liquid nitrogen, our body is exactly like a frying pan in terms of thermal difference, and as it is rapidly evaporating, part of the liquid will turn into a gas very quickly, forming a cushion that prevents the rest of the liquid from touching us, making itRTD quickly as shown in the video above someone throws a cup of liquid nitrogen on the face without any serious consequences (do not try it yourself).

The shooting of explosives does not detonate it

The blame for the spread of this belief among people is not only due to movies, but games focus too much on shooting explosives of all kinds and perhaps primarily grenades. Furious 7, which is still somewhat new, focuses on this point when Vin Diesel throws a bag of Hand grenades to a helicopter for Dwain “The Rock” Johnson to shoot and detonate it, along with the helicopter, of course. In theory it seems very simple and logical because the explosives were made to explode, but the reality is of course very different from this.

For Hand Grenades, it is virtually impossible for a simple reason: apart from the time of their detonation, the bombs are designed to be safe when carrying and transporting them from one place to another. A fuse (long enough for the blast to delay several seconds, depending on whether the grenade is offensive or defensive), after which the fuse ignites an initial liquid charge that explodes to ignite the primary charge that explodes the bomb.

It is arranged in such a way as to prevent the self-explosion of the bombs as much as possible, and the main charge is made of TNT and RDX since the wrong explosion of them is almost impossible to occur.
In fact, the Myth Busters team experimented with the matter, and when firing from a pistol it only happened that the bomb was disabled, while the fire from the Pump-Action rifle only did it turn the bomb into a pile of flying dust.

As for plastic explosives (especially C4), it is even more difficult, and detonating them using fire or even igniting is virtually impossible, as these explosives are largely stable and unintentionally detonating them is not possible, and without detonating the detonator contained within them is not possible, so security forces usually do not find any The problem is that the one who wears an explosive belt of plastic explosives is shot, as bullets will not detonate him except by hitting the detonator himself, which is a very small possibility.

In fact, even what is portrayed in the films about shooting at car fuel tanks is far from reality, as for diesel it is very difficult and almost impossible to fire, but for gasoline it is possible that there are fumes that It ignites with sulfur, but the bullets are a different story, as they do not include a flame or a spark even to ignite the fuel, so regular bullets will not do any of that. [Source] and [source]

Decapitating a person with a wire is not easy to do and often impossible

As for films, the strength of the human body is not very different from a fruit that is overly mature. Wires and ropes for some reason are able to cut the necks of people if they are on the height of their neck while they are riding on snowmobiles, or even cutting them in half, as in the movie Die Hard if they are traveling fast. Enough.

Theoretically, it may seem possible, especially in the case of very strong and thin wires that are sharp enough to cut a person and even his bones, but as with other things on this list, the reality is very different.

When talking about very strong wires, steel wires may come to mind in the first place because they are usually very strong and are available in very small diameters that allow them to be used to cut things like butter for example, but even with wires of stronger materials such as strings of spider webs that are estimated to be ten times stronger than steel Or even carbon nano-tubes, the matter always comes as a problem to a case of two: Either the wire is thin enough to be cut before it can cut the human body, or it is thick enough for the human body to fall and not be able to cut it at all.

The human body seems fragile, of course, and everyone knows the annoying sensation resulting from wounds from metal or nylon wires, but the wound of the skin is very different from cutting the body or one of the ends, the force that must be applied to cut the body or even the arm is greater than that necessary to cut any of the existing wires Currently, even though hitting a neck-guided wire while driving a motorbike at speed can be fatal, death here will come from tracheal fracture or a fall injury not because a wire cut off the neck. [Source]

Piranha will not eat you

Piranas are fairly small tropical fish with a length of only 20 to 35 centimeters, but they are one of the most fearful fish and have a bad and terrifying reputation among people, films and general culture always appear as very fierce creatures and consist of large herds working together To turn anything in front of her into a skeleton with small, fast bites of a large number of fish at once, and some films even show her as superhero killing machines that draw whole movies around.

The reality, of course, is very different. Piranha fish, although they are carnivorous and usually hunt in groups, are not so aggressive and thirsty for blood to this extent, and in their native environment in South America with the usual food there (fish smaller than them usually) they will not even consider attacking humans, and in cases The few that do this are the victims. They usually experience some cuts on exposed areas of their body and are not torn into parts, as many think.

The origin of the piranha myth is actually due to the former American President Teddy Roosevelt who was known for his trips and adventures in the wild. During his visit to Brazil, some locals made a kind of parade in his honor as they locked large numbers of piranas within a very small area and starved them for days and then left them on a cow I was put there, and with the huge number of piles and starving days, the fish tore the cow into parts very quickly, and the story spread out, creating the legend of the fiercely fish.

In any case, if you are not convinced yet, you can watch the video below for someone sitting in a pool with 100 hungry Piranha fish without any attack or indifference from them.