Joke Collection Website - Mood Talk - 100 meter diving is dangerous?
100 meter diving is dangerous?
Jumping into the water from 100 meters will kill people. Don't try. I have studied physical principles such as gravity and acceleration. Jumping from the height of 100 meters can be said to be quite powerful, just like jumping from a 30-meter-high building, it can be said to be fatal. In life, scuba diving is a thrilling extreme sport.
Divers must not only show their skills, but also ensure that their feet fall into the water first. There is also the eggplant platform in the swimming pool, which can be measured with a ruler. It's not scuba diving at all. It's only for children. You know, if the diver's head falls into the pool first, it will cause a serious concussion, and may even lead to a broken skull and death on the spot.
Methods to prevent diving injuries;
1. For beginners, first of all, we should strengthen safety education, emphasize the technical essentials of diving and entering the water, and don't dive in shallow swimming pools or rivers and lakes with unclear background. Before practicing diving, you must be fully prepared and fully move your limbs, back, head and neck and joints.
2, in the rescue of patients, ambulance personnel should be calm, try to hold the patient's head during the rescue process, don't let it swing, don't let the head and neck bend or stretch, and don't massage at will to prevent nerve damage.
Will you die if you dive at a height of 10 thousand meters
Will you die when diving at a height of 10 thousand meters? Jumping from a height must be carried out under the guidance of professionals, from one meter platform, three meters platform, five meters platform and seven meters platform step by step. Otherwise, there may be danger of casualties. See if you will die if you dive at an altitude of 10 thousand meters.
Will you die if you dive at a height of 10 thousand meters 1 What will people experience when they fall from a height of 10,000 meters?
If people are exposed to an altitude of 10,000 meters without any protection, the first thing they have to face is low temperature. As we all know, the temperature is inversely proportional to the altitude, which is what we often say, "it is too cold at the top." Every time the altitude rises 1000 meters, the temperature will drop by 6℃, which means that the altitude of 10000 meters is about 60℃ lower than the ground temperature.
Assume that the ground temperature is 20℃ and the altitude of 10,000 meters is -40℃. In this temperature environment, if people wear their current clothes, they will soon be frozen to the point of losing consciousness.
Of course, when people skydive at a height of 10,000 meters, the temperature will gradually rise, and if air resistance is ignored, people can land in about 45 seconds when they skydive at a height of 10,000 meters, but in a few tens of seconds, under the premise that the temperature is still rising gradually, they will generally not freeze to death.
However, in the process of falling, people face not only low temperature, but also low pressure. People fall freely from a height of 65438+100000 meters, usually from a stable pressure environment to the outside world. At this time, a serious problem appeared: rapid decompression.
Therefore, people who jump unprotected from a height of 10,000 meters have a high probability of dying before landing.
If you fall into the sea from a height of 1 10,000 meters without protective measures outside the body, it will definitely kill you. Due to the gravity of the earth, the speed of falling from a height of 10,000 meters can reach 200 to more than 300 kilometers per hour, which is equivalent to driving a super sports car into the ground.
In this case, even if the seawater is soft for people, when people hit the water at this high speed, the weak seawater will become like an iron plate, and the impact and vibration of seawater will seriously damage people's internal organs.
The speed at which the human body falls
According to the law of free fall, when a human body falls from a height of 10,000 meters, the falling speed of the human body will increase with time. However, due to the air resistance, when the falling gravity and air resistance reach the equilibrium value, the acceleration of human body due to gravity will disappear and become a uniform decline.
When a human body weighing 130 kg falls, the windward area lying flat is about 0.5 square meters, and the resistance coefficient is 0.5. Then when he falls, he will leak at a constant speed of about 60 meters per second, that is, he will fall into the sea at a speed of 2 16 kilometers per hour.
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