Just to answer this question: In reality, can people really dive as shown in the movie?
Because there are too few reliable answers, most people who don’t understand diving have an unnecessary fear of sharks because of the film, and the number of views of the question is so high, so I wrote this post to answer your questions.
This question is divided into the following parts to answer
1 This kind of great white shark sightseeing project does exist, that is, people are in a cage, and then they attract great white sharks to come and take pictures. They are available in Australia, Mexico, and South Africa. After watching the movie, you may need to pay attention to that when participating in such projects, be sure to choose a company with a longer operating time and check the wear and tear of the company's equipment before deciding whether to participate.
2 In reality, after such an accident, there will be no more. If you fall into the sea at 40+ meters at such a fast speed, the eardrum is likely to be damaged due to excessive changes in water pressure. The wear of the eardrum will cause an instant The body feels chaotic, and some serious ones can also cause eye bleeding and affect vision. There is also a person in the film who has no experience in diving. Under such circumstances, it will almost cause panic, and then accelerate the breathing rate. The more compressed air you breathe in the deep sea The easier it is to cause nitrogen intoxication. Students who have learned aow know that the maximum depth of no-decompression diving for recreational diving is 30 meters. After 30 meters, the no-decompression stop time will drop rapidly. Divers at 40+ meters must perform decompression diving, and if it is like the movie The divers are waiting on the bottom of the sea to breathe bottle after bottle of gas and are so excited. All that awaits them is nitrogen drunk (the whole process of the elder sister’s fantasy shown in the film to be rescued with the younger sister). They can’t rely on a few bottles. Ordinary compressed air persisted until the arrival of the rescue team. The most dangerous consequence of nitrogen intoxication is that the diver loses consciousness, falls off his breathing apparatus, and drowns.
3 Sharks are not that scary! According to different classification systems, there are 400-500 species of sharks. Among them, the sharks with records of harming people are mainly concentrated in a few of the great white sharks, tiger sharks, and dog sharks. And the research of scientists has shown that it is probably because the humans standing on the surfboard are very similar to the food seals of sharks. Most sharks are harmless to humans. Some of the sharks I have seen look like catfish (nurse sharks) and live by preying on plankton, small fishes and shrimps. Some sharks grow like big fishes by themselves, and you would never think of them as "sharks" without a biologist pointing out. Although whitetip sharks are fierce, they are only fierce to their food and small fish, and they will leave far away when they see humans. The great white shark’s notoriety mainly stems from the movie "Jaws" by a famous director, which caused my friends to be afraid of cartoon sharks...
Because of the hunting of sharks by humans (mainly the Chinese desire for shark fins), about 100 million sharks are tortured by cutting their fins alive every year. You can go to the documentary "Ocean", sharks that have not died after being cut. It sinks into the bottom of the sea like a wooden stick (like the ancient torturer zhi).
Because of diving, we have increased the opportunity to face-to-face with sharks in nature, and we can truly understand their nature, not as depicted in the movie in order to increase the box office and stimulate the adrenaline of the audience. There are also many marine public welfare individuals who swim with great white sharks and record them, in order to convey to the world what a real shark is like.
So I hope that everyone treats movies as movies. If you like the ocean, don't be afraid to explore the real ocean world. Don't be misled by some wrong ideas and lose the possibility of experiencing the ocean world in person.
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