This is a lackluster low-cost science fiction film. There are many far-fetched and conflicting details in the details, but it also gave me two gains.
1. Faraday cage
film, the hero and the heroine escape to the first place where there are living people. This electromagnetic shielding room built by the uncle of science and engineering Sergei is called [[Faraday cage] .
What is a Faraday cage?
Faraday cage is a device named after the surname of the founder of electromagnetics and British physicist Michael Faraday to demonstrate the principle of equipotentiality, electrostatic shielding and high-voltage live operation. It is composed of a cage, a high-voltage power supply, a voltage display and a control part. The cage is connected to the earth, and the high-voltage power supply delivers 100,000 volts DC to the discharge rod through a current-limiting resistor. When the tip of the discharge rod is 10 cm away from the cage, a discharge spark appears. According to the conditions of the grounding conductor’s electrostatic balance, the cage is An allele, the internal potential is zero, the electric field is zero, and the charge is distributed on the outer surface close to the discharge rod.
During the performance, a few spectators are invited to enter the cage and then close the cage door. The operator turns on the power and uses a discharge rod to perform a discharge demonstration. At this time, even if the people in the cage put their hands on the wall of the cage to make the discharge rod discharge their fingers, the people in the cage will not only not get an electric shock, but they can also experience the cool feeling of the electronic wind. This is because the human body gets an electric shock because there is a potential difference in different parts of the body, and a strong current passes through the body. At this time, although the finger is close to the discharge spark, the discharge current is transmitted to the earth through the metal mesh in front of the finger, and there is no potential difference in the body. There is no current passing, so there is no feeling of electric shock.
When using the Tesla coil, the Faraday cage is a big barrier for the player. Through it, the player can get close to the Tesla coil in the cage without being electrocuted.
Does the last sentence remind you of a scene in a classic movie? That's right, it's "Fatal Magic" by Nolan.
Therefore, the so-called Faraday cage actually prevents the electromagnetic waves inside the cage from escaping, and the electromagnetic waves outside the cage cannot enter. In this way, the monsters in the movie will not be aware of their existence and cannot attack.
Second, Vinonika Ozerva
does not need to say more about this, just go to the picture.
Finally, talk about the overall look and feel of the film.
As a film produced and distributed by a US-owned company, the most surprising thing about this film is that two Americans, an Austrian, and a Russian died. At first I thought that at most one American would die, and then a lot of Russians came to help the Americans escape from the danger, and they lost their lives. This feeling started when the protagonists came to Sergei's house (that is, the Faraday cage) to self-defense. The counterattack team appeared to peak.
However, the film did not let the fighting nation die unfavorably. On the contrary, the crying female second and the gentle and calm male second (both American) received the lunch early. This unusual method of death makes the film seem less unconventional. And follow the tradition. In addition, the film sets the location of the story in Moscow, which has an exotic atmosphere.
However, the film puts too much energy on escaping and fighting monsters. It only mentions the source of the monsters and the purpose of destroying Moscow without giving a sufficient explanation. Although as a senior movie fan, I can make up for it by myself based on rare clues, but that is based on the experience accumulated from watching other science fiction films. In fact, I still hope that the director has his own set of arguments, but the director does not seem to care about this. Then the question is: Do you just want you to show me the mediocre special effects? Because the characters really don't have much depth...
If you are in a desert, then watch this film. Although it doesn't mean much on the whole, the process scene is still very catching.
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