Does latex sink in water? Why don t people swim in the water will sink

Yes. Normal latex sinks underwater society, and will absorb water to become deeper.

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.

There is no point in the question. Because the sinking and floating of cosmetics in the water is a junior high school physical problem, the density of water is 1 gram per cubic centimeter, where the density is greater than the water, the density of cosmetics will sink to the bottom when thrown into the water, the density is less than that of water, the density of cosmetics will float on the water surface when thrown into the water, the density of the commonly used ingredients of our cosmetics, glycerin, butylene glycol, sodium chloride is greater than that of water, various vegetable oils, mineral oils, animal oils The density is less than that of water, assuming that the amount of glycerin in the formula is greater than the amount of various oils, The overall density of cosmetics is greater than that of water, and it will sink to the bottom, and vice versa, it will float. However, different people apply different cosmetics, and the proportion of ingredients must be different.

There is no scientific basis for this!

It's not that it can't be used, because most of the emulsions are actually floating on the side of the cup, saying that this kind of mercury contains more mercury that is not good, and what sinks is good, and it does not contain mercury.

I saw the comment on dyeing, and I had to say two words. If the chopsticks are lacquered and wax-free, if the chopsticks you say are unpainted and wax-free, you will definitely lose color if you soak them for so long, and if the chopsticks are lacquered and waxy (that is, the surface of the chopsticks is coated with an imitation slow layer of insulating liquid), so that even if you take it to boiling water to boil, you can't see the fading. Just like ebony, if you take it back and soak it for so long without lacquering or waxing, I can guarantee that a large pot of water can be turned into a wild red; Take the rosewood back and boil, and you'll also find blue fluorescent water!

I really don't believe it, shouting that I will go to the mountains and cut down a tree, take it home and try it myself!

Normally not, as long as you relax in the water, your body will float naturally. If you are learning to swim, remember to treat the water as a friend, familiarize yourself with the water first, and don't rush it.

Not necessarily, I won't, people who can swim know how to float themselves, people who can't get into the water will struggle indiscriminately and sink easily. If he is calmer, it will not be easy to sink.

Of course people who can't swim will sink.

Well, as soon as you tense your muscles will be tense Your muscles will produce some power as soon as you are nervous, and your buoyancy will become smaller, you can try it, when you are completely relaxed, it will float up Hehe, relax some in the water, of course, you will let the muscles relax when you go into the water more, otherwise, even if you try to relax the muscles will not listen to you too much. Hehe, take your time.

Yes, and it will retreat, that's how drowning comes about.

There will be no change. According to Archimedes' law of buoyancy, the buoyant force experienced by an object in a liquid is equal to the gravitational force of an object discharging the liquid. So as long as the object is completely submerged in water, its drainage volume will not change regardless of whether it rises or sinks, that is, its buoyancy does not change.

Look at the changes in the V row.

As soon as it begins to sink, that is, when it is slowly submerged from the surface of the water, the buoyancy becomes larger;

When it is completely submerged and continues to sink, the V row does not change, and the buoyancy does not change.

I don't know what to ask.

It does not sink in the water, but floats on the surface of the water. Whether the wood sinks in the water or not is related to the density of the wood itself. If the density is high enough to have a mass higher than the buoyancy of the water, the wood will sink.

Many woods like agarwood, ebony, and Southeast Asian wenge will sink in the water.

French Sycamore.

The density of tung is heavier than that of paulownia, but the density is still less than that of water.

It will float in the water.

Once a person begins to sink in the sea, he does not necessarily sink all the way to the bottom of the sea (man does not die).

Once a person starts to sink in the seawater, when the buoyancy of the human body in the water is greater than the gravitational force of the human body, the person will stop sinking.

According to the law of buoyancy, the relationship between the float and sink of an object and the density can be derived:

When an object floats up, the buoyancy force is greater than the gravitational force of the object discharging the liquid (gas); When an object floats or levitates, the buoyancy force is equal to the gravitational force of the object discharging the fluid; When an object sinks, the buoyant force is less than the gravitational force of the object to displace the fluid.

Then, when the density of the fluid is greater than the density of the object, the object floats; When the density of the fluid is equal to the density of the object, the object floats or levitates; When the density of the fluid is less than the density of the object, the object sinks.

In other words, scientists have a whim, what will happen to the corpses that sink to the bottom of the sea?

This phenomenon, which is commonplace on land, has never been seen to happen at the bottom of the sea.

So, Canadian scientists did a hardcore experiment at the bottom of the sea.

They threw the pig's carcass to a depth of 300 meters to the bottom of the sea, and then placed a series of scientific instruments, including video cameras, to record what would happen at the bottom of the sea.

For comparison, they put two pigs on the seabed at a time, one protected by a cage to prevent the bite of large carnivorous fish. One is simply secured with a rope and left unprotected.

In the end, it turned out that whether or not to protect is actually useless.

Because it's not sharks that eat pigs, it's shrimp in the ocean.

Below** slightly heavier, pull down cautiously.

As soon as the pig is placed on the bottom of the sea, it attracts a lot of small shrimp. This shrimp is very small, with a body length of less than 1 centimeter.

Then there are more and more small shrimps. More and more. More and more. The pig is covered with a thick layer of dried shrimp, which is 3-4 cm thick.

These small shrimp can't bite the pigskin, so they drill into the body from the pig's seven orifices, chrysanthemums, and even wounds, and after getting in, they will eat the fat and muscle in the pig's body.

By the second day, the meat on the buttocks and neck will be eaten.

By the 3rd day, the hind leg meat was eaten.

By the fourth day, it had been hollowed out, leaving only bones, skin, and some soft tissue. Then the dried shrimp dispersed.

Later, the larger scavengers, shrimp and crabs, will rush over and eat all the remaining cartilage and skin of the pig's body, and finally only a bunch of white bones remain.

In the meantime, sharks and octopuses have come to bite a few times, but they don't seem to be interested in the carcass and quickly abandon them. Especially when the dried shrimp has been covered with a full layer.

Scientists say that in the spring, it only takes 4 days for a pig to break down into white bones; In autumn, the process takes only 3 days.

Subsequently, the bones can be preserved for a long time and are constantly broken down by a variety of small marine organisms.

The scientists also measured the effects of a series of factors, such as the oxygen content of the water, temperature, pressure and salt concentration, on the decomposition of the corpse through a sensor.

An interesting finding is that a large number of foodie shrimp will consume the oxygen around the carcass, causing the local oxygen content of the seawater to decrease.

After the dried shrimp is eaten and withdrawn, and the oxygen level is raised, the animals can come forward and eat some bits and pieces.

In future studies, scientists will also collect bones for deeper experiments.

So, why did this group of scientists do such a heavy experiment?

There is only one truth.

The high salt content of the Dead Sea increases the buoyancy of the water, making the specific gravity of the water greater than the specific gravity of the human body, so that people do not sink in the Dead Sea.

Located in the Dead Sea in Western Asia, it is 80 kilometers long from north to south and 5 16 kilometers wide from east to west, and its sea level is 392 meters below the surface of the Mediterranean Sea, and its deepest point is 395 meters. It is fed by the Jordan River to the north and the Al Ahsa River to the south, but there is no waterway or sea connection, and the water in the lake can only enter and exit. Due to the hot, dry and hot temperature of the Dead Sea, the evaporation is strong, but the salt remains after the water evaporates.

Over time, more and more salt accumulates in the lake, making the Dead Sea the saltiest lake in the world, with a salt content of 230 to 250. That is, ten catties of lake water contain two catties of salt, which is seven times the salt content of ordinary seawater.

Due to the high salt content, the specific gravity of the lake water is more than the specific gravity of the human body, so swimmers in the Dead Sea will not sink when lying flat on the water. Because the Dead Sea is so salty, no other life can survive in the lake except for certain bacteria, and the vegetation along the shore is scarce, and the lake is lifeless. Hence the name "Dead Sea".

The Dead Sea is actually a big salt.

It is a process that begins to sink, does a deceleration motion, then decays in the water for too long, decreases in density, sinks to a certain depth, begins to rise, and finally floats on the surface.

The density of human beings is not as large as that of seawater, so it is impossible to sink all the way to the bottom of the sea, and often sink to a certain depth and float up.

No, because the buoyancy of seawater is greater than that of freshwater, and if you are in the sea, if the wind and waves are not large, you will not sink if you keep parallel.

No, the density of the human body is close to the density of water, and the density of sea water is greater, and the buoyancy is greater, so it will not sink to the bottom of the sea even if it does not die.

The gravity of the human body is greater than the upward buoyancy of the water, which naturally sinks, and when the gravity of the human body and the downward pressure change, it is not necessarily, this depends on the situation.

No, it has something to do with the density, the human body itself has a certain amount of buoyancy, and the denser the seawater. It is not easy for people to sink, like the Dead Sea, and you can't go down even if you want to.

At first, it will sink, and when it dies, it will rise due to the expansion of the corpse, the buoyancy increases, and the density changes.

No, there is gas retention in the lungs, and at first due to the decrease in the amount of gas in the body, it will sink somewhat, and then the body cells will absorb more water and bubble and float.

No, it won't. The density of the human body is close to that of water, and the density of sea water is greater and the buoyancy is greater.

Therefore, if you do not die, you will not sink to the bottom of the sea, and at the beginning it will sink due to the decrease in the amount of gas in your body.

When you die, you will drift to the surface of the sea. So it won't.

No, because in terms of density, the density of the human body is almost the same as the density of water, and in terms of buoyancy, the density of sea water is even greater.

Once a person begins to sink in the sea, he will not sink to the bottom of the sea. Because sea water is buoyant to people.

No, a person's stomach is equivalent to an air bag, and when it is alive, it will begin to float when it sinks to a certain depth, for example, a diving person can only dive to a certain depth with a weighted block

To put it simply, no, because under normal circumstances, the density of the human body is lower than that of water, but there is a place in the world called the Dead Sea, where people are more buoyant. Then there is the Journey to the West, the three thousand weak water in charge of Marshal Tianpeng will definitely sink there, because even goose feathers and reeds can't float.

No, the deeper you dive. The greater the pressure of the seawater. There is also the flow of seawater, etc., and it dies if it does not reach Haiti.

There are two questions: Can you swim? If you can swim, you don't move, like the sea, I don't think anything happened to you, a little floating; If you can't swim, you'll feel nervous, and if you're nervous, you'll struggle desperately, and you'll sink

No, you can ask a master swimmer about that. They usually swim with their whole body completely floating in sleep, just like a boat.

Because the density of the human body is close to the density of water.

Sea water is denser and more buoyant.

So it won't sink to the bottom of the sea, and at first it will decrease due to the amount of gas in the body, but as long as it doesn't move, it's fine.