Why doesn t someone sink when they sleep on the water?

Someone sleeps in the water and does not sink, mainly because the salt reaches it.

1.Tension of water: Small bugs can, the tension of water is very small, and the weight of the person is too large, unless the surface tension of the water is increased or the surface area of the person is increased without increasing the body weight.

2.The buoyancy of the water: the dead sea water is dense enough to float on the water, i.e. the density of the water exceeds the average density of the human body, by adding enough salt to increase the density of the water.

The density of human beings is about the same as that of water, and when there is a lot of air in the lungs, the average density is smaller than that of water, and they can lie down and float on the water. Fat people have a little smaller fat density and are easier to achieve.

In this case, there must be something buoyant underneath the water, or if the other party is talking about it, they will sleep on the Dead Sea, because the concentration of the Dead Sea is relatively large, and people can't hold it up.

If the interior of a ship is mostly air, then even if the hull itself is heavy, the total weight of the hull and air may still be much smaller than the weight of the water it disempowers, so the ship will float. However, if a ship has a hole in its hull and the boat is filled with water, and the water squeezes the air out so that the total weight of the ship is greater than the weight of the water it discharges, then the ship will sink.

People have buoyancy, and some people can do it if they have a good grasp of it.

If the interior of the boat is mostly air, then even if the boat itself is heavy, the total weight of the boat and air may still be much less than the weight of the water it discharges, so the boat will float. However, if there is a hole in the hull, and the boat is filled with water, the water pushes the air out, so the total weight of the boat is greater than the weight of the water it discharges, then the boat sinks.

Man does not struggle in the water and sinks. People don't sink all the time in the water, ordinary people sink first and then float in the water, as long as you don't move your hands and feet, you will experience it. If you move your hands and feet in a panic, you can't experience it.

Because the salinity of the water is different, the buoyancy brought by it is also different, and the higher the salinity, the higher the buoyancy of the water. Before swimming, you should be prepared to warm up to prevent leg cramps due to the low water temperature after entering the water.

And accidental drowning. After falling into the water, you should keep a cool head, relax your whole body, remove heavy objects from your body, and try to keep your body floating on the surface of the water and wait for rescue.

Overview of drowning

Drowning. Also known as drowning, it is a condition in which a person is submerged in water or other liquid media and is injured. Water filling the respiratory tract and alveoli causes hypoxic asphyxia, and water absorbed into the blood circulation causes blood osmotic pressure.

Alterations, electrolyte imbalances.

and tissue damage, eventually leading to respiratory arrest and cardiac arrest and death. The consequences of drowning can be classified as non-morbid, morbid, and death, and the process is continuous.

A person who does not lose his or her life after drowning is referred to as near-drowning. People who drown and suffocate with cardiac arrest are called drowning, and if the heart is not stopped, they are called near-drowning.

The reason for floating in water is the relationship between the density of the object and the density of the water.

Human tissues contain a lot of water and fat, and when people are alive, the water content in tissues is high, and the relative density is high. So it will sink.

If you mean that the person is in the water and the whole person is in the water, it is because if you breathe in the water, you will draw the water into the lungs, and the air in your body will not be able to support your body in the water, and it will sink. If it's on the surface of the water, it's actually about the same as being in the water, and it has a certain relationship with the density, you are in the water, and the density of the human body and the water is basically the same, (because there is a good saying, women are made of water!) In fact, men are the same!

You can imagine what a balloon filled with water looks like in the water, and what a balloon that isn't filled with water looks like. Because breathing is an act that is kept all the time, but if you hold your breath, you will find that you will float on the water, but you have to understand that you are inhaling while you are holding your breath. The qi in the body is always there!

Because there is less air in the body, it will sink.

Question: Is it true that the body sinks more easily after exhaling in water.

Okay thank you. I wish you good health and safety, and give it a thumbs up.

When I saw this problem, the first thing that came to my mind was the backstroke.

If you fall asleep, face up, completely relaxed, probably instinctively, the person will move like a backstroke and will not sink.

There are real people and real stories as examples!

Also, in a dense place like the Dead Sea, it won't sink!

If you sleep in a boat, it will not sink.

It should be able to. From a physical point of view, the density of the human body and the density of water are close to each other, after all, the human body is 50 years of water, and the rest are meat and bones, and the density of those tissues should be larger than that of water, which will sink. When the human body lies flat on the water, the area of force increases (buoyancy), and the buoyancy of the human body increases, after all, there is still air in the human body.

The gas is less dense than water and will also float on the surface.

Lying awake on the surface of the water, between breathing and breathing, as long as the law is controlled, the human body will not sink. Does it sink when you fall asleep? I haven't tried it, and it is estimated that it will sink.

Sink! The density of people is high. Rationale basis: people fall

After the water, it will sink.

But after decay, it produces gas, which will float up.

Estimation formula for men's body density: (a is the epithelium.)

fat, b is the sebum of the scapula).

Female body density estimation formula :(a is the upper arm skin

fat, b is scapular libis).

In 2006, men in the country were 25-29 years old, and the upper arms were thick with fat skin

The degree monitoring value is measured as scapular skin monitoring lipid measurement; ​

In 2006, women in the country were 25-29 years old, with thick sebum on their arms

The degree monitoring value is measured, and the scapular fat skin is monitored. ​

Then there is: the secret body of men

10**3kg/(m**3)

Female body density

1*10**3kg/(m**3)

The basic generation energy table is the total difference in the density of men and women

Men have a greater density than women. The human body is dense

It is smaller than a large amount of water, and it will sink after the water exhales out the whole air! ​

Those who know how to water fall asleep and do not sink.

When you inhale, your chest cavity is full of air, and your body will float up; When the person is angry, he will slowly sink, and he will not sink if he controls it between the rise and fall, but there is no air space in the legs, and he will generally sink.

But control the strength of your legs or find a small inflatable pocket under your feet and it won't sink.

It's okay to control your breathing, and your body is relaxed. When I was a child, I used to float in the water like this.

1.In fact, the deceased person will sink to the bottom of the water at the beginning, and after a period of time, the inside of the body will slowly decay at the bottom of the water, the composition and structure of the body will slowly change, and the density of the body will slowly become less than that of water, and the body will float up.

2.Raw people don't sink all the time in the water, ordinary people sink first and then float in the water (as long as you don't move your hands and feet, you will experience it.) If you move your hands and feet in a panic, you can't experience it.

First of all, as soon as you enter the water, you will find that your body will naturally sink a little bit (many people will sink deeper and deeper due to panic hands and feet), and then your body will naturally float a little bit, just to the position of the mouth, and you can breathe for a while. (The reason why it will float up is because there is oxygen in the lungs, this ventilation process is so short, you have to master the timing, you will choke on water if you breathe fast, and you will not be able to breathe oxygen if you breathe slowly, and you need a lot of practice), and then it will sink again, and float again, and keep circulating, when the oxygen in your lungs is less than a certain amount, the body will keep sinking and can no longer float.

Because the density of people and water is roughly similar.

Normally, the density of people is high. Theoretical basis: When people fall into the water, they will sink.

However, after corruption, gas is produced and floats up.

Formula for estimating men's body density: (A is sebum on the upper arm, B is scapular sebum) Formula for estimating human density for women: (A is sebum on the upper arm, B is scapular sebum) In 2006, the monitoring value of sebum thickness on the upper arm of men aged 25-29 was scapular sebum monitoring; In 2006, the sebum thickness of the upper arm of women aged 25-29 was monitored and the scapular sebum was monitored.

Then there is: men's body density =

Female body density

It basically represents the overall difference in the density of men and women, and the density of men's bodies is greater than that of women. The density of the human body is slightly greater than that of water, and it will sink after exhaling all the qi in the water!

The average person sinks. But some people don't. I lie on my back, on my stomach, and stand in deep water without moving my hands and feet, and I can breathe in the water in both supine and standing positions, except for lying on my stomach and holding my breath.