First of all, it is worth mentioning that we will talk about the meaning of the word "rarefied", and not "discharged". "Discharged" means "to be devoid of charge."
A revolver can be discharged, and the air can be rarefied.
What is thin air
The word "rare" comes from the adjective "rare". That is, with a reduced density. This is a state of air, when the number of molecules per cubic centimeter of space becomes less than in the air that everyone is used to breathing.
In nature, it is found at altitude. For example, in the mountains or in the layers of the atmosphere, which can be climbed by plane. The higher you rise above the sea level, the more rarefied the air will become. As a result, it will turn into a vacuum, that is, the complete absence of air molecules in space.
The decrease in density with an increase in altitude occurs because the farther from the earth, the less the gravitational force of the earth affects the oxygen particles. It turns out that the maximum air density at the surface, especially where many plants grow, and in open space there is no air at all, there is a complete vacuum. You can also thin the air artificially.
On airplanes
The passenger plane rises above the ground by about 10-12 km. Flying vehicles with rocket and turbojet engines rise up to 100 km, but ordinary people cannot get on them, only people specially trained for this fly on them. At such a height, the vital activity of the human body is impossible. If the door is opened in an airplane in flight or an emergency depressurization of the cabin occurs, then all passengers on the airplane will instantly die.
But even in a sealed, closed cabin, people will experience uncomfortable sensations:
- high blood pressure;
- pawns ears;
- swelling of the legs.
Frequent plane flights are not good for your health. Pressure drops, high levels of carbon monoxide, too much acceleration all affect the cardiovascular system. Pregnant women and patients with hypertension are generally not recommended to move in this way.
In the mountains
The highest point on earth is the summit of Mount Everest. The maximum point of this mountain reaches over 8 thousand meters, and it is very high.
Instinctively, a person is afraid of heights and seeks to descend lower. This happens not only because one can fall from a high place, but also because the height can have a detrimental and even fatal effect on human health.
It is impossible to fully get used to the properties of thin air, but it is possible to adapt. Climbers who climb high in the mountains have been preparing for this for years. And they also know that you need to climb gradually, gaining a certain height - you need to get used to it. If an unprepared person climbs sharply to Everest or even a mountain much lower, then mountain sickness will surely knock him down. For a healthy strong person, the critical height is from 2.5 km and more, and for a sick or elderly person - from 1 km and more. The symptoms of this disease are as follows:
- headache and dizziness;
- dyspnea;
- vomit;
- a sharp decline in strength, and then a sudden surge of strength;
- inadequate perception of reality.
If a person has a feeling that he has become sharply happy, then this is a very bad sign. Drowsiness will follow, and if you fall asleep, you will not wake up.
The worst thing is that mountain sickness can be practically asymptomatic for a long time, and then a person suddenly loses consciousness. If you do not do anything and do not immediately descend, then the person will die. Hypoxia or lack of oxygen is most detrimental to the central nervous system.
Thin air treatment
But there is an opinion that mountain air is very useful. And this opinion is true, moreover, there is even oroterapy - treatment and restoration with rarefied air.
The principle of therapy is to place a person in a capsule with rarefied air at a certain concentration.
Orotherapy is effective in the following cases:
- allergic reactions of the body;
- diseases of the central nervous system;
- prevention of pregnancy pathology;
- anemia;
- the need to stimulate regeneration.
The technique has been used in Russia since 1987. Such treatment should be carried out exclusively in a clinical setting and under the supervision of a physician. After all, both electric current and radioactive radiation in the wrong doses kill, and in precisely calculated doses they are treated. The mountain air generator allows to thin the air in clinical conditions.
The amount of oxygen and nitrogen decreases sharply with altitude. It's all about the pressure difference between the upper and lower layers of the atmosphere. The upper layers put a lot of pressure on the lower ones, so there is much more air in the latter and its pressure is lower. Climbers, climbing to great heights, experience some difficulties.
It all depends on the height at which the person is. If it does not exceed 1 km, the difference is almost imperceptible, and there will be no harm to the body. An altitude of 1 to 3 km also cannot harm a healthy person (the body can easily compensate for the lack of oxygen). Sick people, especially those with asthma, should not go on such a dangerous journey.
At an altitude of 5 to 6 km, the body of a healthy person mobilizes all systems and makes them work in an enhanced mode due to a lack of oxygen. A trained person can cope with such a height, which is why various research bases and observatories are often located here. Healthy sleep and proper nutrition help the body of scientists to cope with stressful situations.
Places located at an altitude of 7 km and above are unsuitable for human life. There is so little oxygen here that the blood cannot fully deliver it to all organs. They begin to experience oxygen starvation. The person feels fatigue, headache, the general condition worsens. At an altitude of 8 km and above, a person can spend no more than 3 days.
Life in the highlands
Mountain dwellers have much better health and live longer than plain dwellers. How can this be explained? Oxygen is by nature a strong oxidizing agent. Any oxidizing agent in the body, to a greater or lesser extent, causes it to age. But a person cannot live either. To improve health, you need a slightly lower oxygen content in the air than in the plains.
The optimum altitude for a comfortable life is about 1500 meters above sea level. The body experiences a slight oxygen starvation, which turns on all systems in an enhanced mode. Blood circulation and ventilation of the lungs improves, the level of hemoglobin in the blood rises.
American scientists have noticed that guttural sounds in speech are characteristic of people living in the mountains. At high altitudes, it is much easier to pronounce such sounds, since for this you need to squeeze the air in your throat. It is easiest to do this in the highlands, since the air is thinner here than on the plains.
What is thin air? Explain to me as a fool what thin air is ...)) and got the best answer
Answer from Anatoly Shodoev [guru]
Hence the meaning of the word "rarefied" - air. in which molecules are less often located. Because there are simply fewer of them.
I saw it. how is the ball pumped up? Air is pumped into it, there are more air molecules, and since they always move chaotically, now they more often hit from the inside against the walls of the ball and put pressure on it. That is why the inflated ball is so resilient.
Now imagine that the pump works in the opposite direction - it pumps out air. Of course, the ball will just flatten - that's all. But if instead of a ball we have a rigid vessel - glass, metal, then it retains its shape and size. But the air (and molecules) when pumped out in it actually becomes less. This kind of air is called rarefied.
This is how rarefied air is obtained artificially. But it also happens in nature. Namely:
the higher you climb the mountains from sea level, the more rarefied the air becomes. Therefore, it is difficult to breathe high in the mountains, climbers even wear oxygen masks. And even higher, where planes fly, the air is even more rarefied. And if the sealing of the aircraft is broken, the passengers will die very quickly. You ask: why do planes climb so high if it is dangerous? This is forced by tough economic interests: thin air is much less dense than below, and therefore has less resistance. This means that the plane can fly at a higher speed, the flight time is reduced, and fuel is saved.
PS Isn't it time to take a break from physics? ... Look at my page (in My world), look through the photo albums ...
Answer from 2 answers[guru]
Hey! Here is a selection of topics with answers to your question: What is thin air? Explain to me as a fool what thin air is ...))
Answer from ForShmak[guru]
but if the air is presented as water, then in a liter can there will be less than a liter and nothing else will be ... drops of water will, as it were, recede from each other.
That's the way it is with the air
Answer from Stealthy[guru]
You climb a high mountain and oops! And there is nothing to breathe))
In general, this is a low atmospheric pressure, observed at high altitudes.
Answer from Alexander[guru]
There is such a concept - pressure. imagine that there is a certain amount of air in the piston, we pull back the piston, and now the previous volume has doubled, and there is as much air there as it was before. this is what will be rarefied air, as opposed to, for example, the pressure of excess air in the tires of a car. And don't call yourself a fool, that's bad
Answer from Yoalikaly Güntner[active]
Anatoly Shodoev Enlightened (48195) 5 years ago
First, I won't explain it to a fool. I will explain it as a normal student who did not understand the topic a little.
Secondly, well done. that you spell the word sparse correctly. A lot of people write discharged, maybe they even think that this word comes from the word "discharge".
Actually. of course, the word "rare" is at the root.
======================================================
And how to understand then to discharge the AK 47 Assault Rifle? If this word is based on "rarely"?
Answer from ..|..
[newbie]
"And how to understand then to discharge the AK-47 assault rifle? If this word is based on" rarely "?"
Sparse comes from the word rare.
And discharge comes from the word discharge.
Answer from Alan Tedeshvili[newbie]
So guys, I want to reassure everyone ... First of all, there are no less molecules! they simply move away from each other ... Hence it follows that the concentration of gases does not change, the volume of the gas mixture system changes! And this happens due to a decrease in pressure ... The gas mixture is like a spring, the harder it is squeezed, the less volume it will eventually occupy ... The lower the potential pressure, the greater the volume! At the same concentration, but with a greater volume, our body must ventilate more air, but since the volume of the lungs has its maximum, and is unable to take more, we feel unwell (hypoxia)
What is thin air? Explain to me as a fool what thin air is ...
- So guys I want to reassure everyone ... First of all, there are no less molecules! they simply move away from each other ... Hence it follows that the concentration of gases does not change, the volume of the gas mixture system changes! And this happens due to a decrease in pressure ... The gas mixture is like a spring, the harder it is squeezed, the less volume it will eventually occupy ... The lower the potential pressure, the greater the volume! At the same concentration but a larger volume, our body must ventilate more air, but since the volume of the lungs has its maximum, and is unable to take more, we feel unwell (hypoxia)
- but if the air is presented as water, then in a liter can there will be less than a liter and nothing else will be ... drops of water will, as it were, recede from each other.
That's the way it is with the air - You climb a high mountain and oops! And there is nothing to breathe))
In general, this is a low atmospheric pressure, observed at high altitudes. -
Hence the meaning of the word "rarefied" - air. in which molecules are less often located. Because there are simply fewer of them.I saw it. how is the ball pumped up? Air is pumped into it, there are more air molecules, and since they always move chaotically, now they more often hit the walls of the ball from the inside and put pressure on it. That is why the inflated ball is so resilient.
Now imagine that the pump works in the opposite direction - it pumps out air. Of course, the ball will just flatten - that's all. But if instead of a ball we have a rigid vessel - glass, metal, then it retains its shape and size. But the air (and molecules) when pumped out in it actually becomes less. This kind of air is called rarefied.This is how thin air is produced artificially. But it also happens in nature. Namely:
the higher you climb the mountains from sea level, the more rarefied the air becomes. Therefore, it is difficult to breathe high in the mountains, climbers even wear oxygen masks. And even higher, where planes fly, the air is even thinner. And if the sealing of the aircraft is broken, the passengers will die very quickly. You ask: why do planes climb so high if it is dangerous? This is forced by tough economic interests: thin air is much less dense than below, and therefore has less resistance. This means that the plane can fly at a higher speed, the flight time is reduced, and fuel is saved.PS Isn't it time to take a break from physics? ... Take a look at my page (in My world), look through the photo albums ...
- Anatoly Shodoev Enlightened (48195) 5 years ago
First, I won't explain it to a fool. I will explain it as a normal student who did not understand the topic a little.
Secondly, well done. that you spell the word sparse correctly. A lot of people write discharged, maybe they even think that this word comes from the word "discharge".
Actually. of course, the word "rare" is at the heart of it.
======================================================
And how to understand then to discharge the AK 47 Assault Rifle? If this word is based on "rarely"? - There is such a concept - pressure. imagine that there is a certain amount of air in the piston, we pull back the piston, and now the previous volume has doubled, and there is as much air there as it was before. this is what will be rarefied air, as opposed to, for example, the pressure of excess air in the tires of a car. And don't call yourself a fool, that's bad
- “How can you then understand how to discharge the AK 47 assault rifle? If this word is based on "rarely"? "
Sparse comes from the word rare.
And discharge comes from the word discharge.
Do not rush to throw away empty bottles that have accumulated after the holidays, you can do one spectacular experiment with them. You will need a container of water. Pour some water into the bottle itself. Then we put it in the microwave for one and a half two minutes to bring to a boil. After that, we carefully take it out, without lifting the neck up so that the steam does not come out.
We put it in a container with water. If you do everything quickly, you can observe the opposite process: steam condensation and filling the bottle with water. In the beginning, nothing worked. The condensation was somehow sluggish and uninteresting. The experimenter changed the heating time and the amount of water from the bottle, collected colder water, but this did not change the picture.
The critical parameter was the temperature of the glass of the bottle itself. The more it heats up, the slower the process of steam condensation. With a small bottle, everything was really bad ... Everything turned out only in the evening ...
This is certainly not a vacuum. But the rarefaction is quite decent. And most importantly, it is simple and clear for understanding.
discussion
Igor Beletsky
+ enikeys4ik Yes, it was the first time, I even put plastic on the bottom of the vase so that it would not break, but it sticks to the neck and prevents water from being absorbed. Not everything is as easy to do as it might seem in a short video.
Peolepol
+ mvandreymv the steam in the bottle displaced the air, when the bottle was lowered into the water, it sucked in water due to the formation of condensation (the steam turned into water), a certain void was formed. As the video said: “nature does not like emptiness. "
Das
+ peolepol, as I understand it, there is not a collection of water in the bottle, but a sharp puff, which turned out in the video 2 times. What is it, why is it happening and what is the catch - I also could not understand.
Airaleais
+ ker arkad steam evenly cools down in the bottle, and at a certain temperature begins to condense, drawing in water accelerates the condensation process, water rushes into the container even faster, at a certain moment all steam simultaneously in all areas drops to the condensation temperature, which is why it sucks water so sharply.
kovalev lion
+ ker arkad water vapor has displaced the air. When the bottle was lowered into cold water by the throat, the steam began to condense, and there was almost no air in the bottle. Thus, the pressure in the bottle drops sharply, and the external atmospheric pressure pushes water into the bottle.
maxim tepluk
the idea was to try to achieve a good vacuum in a sealed vessel through chemical reactions. For example, purge an evacuated vessel with oxygen, displacing air from it. Then seal. And the final step is to transfer the oxygen contained in a closed vessel into a solid substance of some kind of oxide, maybe a metal. For example, to burn with an electric current a wire spiral previously placed in a vessel.
Petr timchenko
but it is not so interesting to draw some water into a bottle, it will be much more interesting to attach a manovacuum meter to the tank and detect a “dry” vacuum when the tank is cooled externally and vapors in the mixture are internally condensed.
Mrdeltik
hurray, it worked the first time! The truth is when the zilch happened. I took a bottle of quail vodka, 0.7L. I poured it so that it would not pour out when lying down. Heating time is 3 minutes at max power.
Mrdeltik
+ Igor Beletsky,
I am delighted. He already scared his wife. Recently I showed my son how to put an egg in a bottle - he is 7 years old, and I tried to explain the expansion / compressibility of gases. But this effect is much more spectacular (although it is not associated with compressibility, it is possible to be cunning). I am grateful to you - I have liked and the subscription has already been made.
Ivan Ivanovich
there will be no deep vacuum here, not even close! Mislead people. But the interest of the people is growing in such experiences.
This is already good.
Steppeez
Well, the water-steam vacuum of such a depth is not enough to even ignite a glowing electric discharge in it. And also in this video it is not visible that water (this is not even the finely dispersed dust of snow crystals) gushes into the volume of the bottle not through a nozzle that has been brought to perfection and without finely dispersed spraying of refrigerant in the volume of the bottle, i.e. not the way it works in workers chambers of vacuum vapor-breathing heat machines.
Pukan Pukanovic
sergey familiy
if you combine a steam engine with a vacuum engine in one structure and powered by a solar concentrator or even better from a catalytic combustion. I think it will be a very entertaining video.
Dmitry litovchenko
like! I am your subscriber! Igor, you and Creosan are my favorite experimenters! You are the coolest! Courage is your thing! Igor! Huge request! Add some safety instructions to the video! People are not immortal yet and injuries do not decorate us yet!
Think about the picture: polytraumatology or a burn department for subscribers of such channels! This could be real soon!
Real - 1995. Odessa hospital of eye diseases them. VP Filatov, children's burn department! Seven blind boys from 11 to 14 years old, putting their right hand on the shoulder in front of the one walking! The first one distinguishes between shadows and can navigate a little! Therefore, he is in charge! And in the evening, on a large and beautiful balcony, with a guitar he sang a song with the words “Dad, what are the clouds like? ”Nearby sat his mother with a stone face. The boys were from the Donetsk region, children of miners. Curiosity and illiteracy made me throw an oxygen cylinder into the fire. And the light went out. And the pans for life will have to be reviewed.
Safe Curiosity - Fast Progress!
An illiterate curiosity is a quick death at best!
They correctly say: “it is not a fool that is terrible, but a fool with initiative!
Thank you very much for your understanding and quick response! An accident can happen at any moment. YouTube works around the clock! The author is asleep, and the children are jumping into the other world in a noisy crowd! Remember this! Please! This is not a joke! I know what I'm talking about! I am a disabled worker! And on the safety pages 2.5 liters of my blood!
Petr timchenko
an example of the action of Dalton's law: "the pressure of the mixture is equal to the sum of the partial pressures of its constituent components." Air-water vapor mixture. During condensation, the partial pressure of the vapor decreases, while the air remains constant. The mixture loses total pressure and vacuum occurs. A greater vacuum in a vessel can be achieved by condensing the air itself, and then there will be a real “supervacuum” (within the limits of physics). In principle, I did not watch the video in order to analyze the situation myself.
Anatoly parkhomenko
what does it mean when it rains - rarefaction? Or, in this case, the steam replaced the air and, falling into the condensate, dragged the liquid along with it? The steam has completely displaced the air and the steam pressure is less than that of the air, the pressure difference squeezes the water into the bottle! Cool!
Eugene E.
As soon as you start heating, it will immediately boil - i.e. Part of the water from the liquid will quickly turn into steam, the pressures will equalize and the “boiling” will stop until the next increase in temperature.
The explanation is simple - boiling begins when the pressure of saturated vapor becomes equal to the external pressure.
Eugene E.
That is, in the bottle, vapor and liquid will be in thermodynamic equilibrium - how many molecules fly away from liquid into vapor, the same amount will fly back. If the temperature is increased, the rate of evaporation will be greater than the rate of condensation.
If the temperature is raised slowly, then the bubbles may not be seen, since there is enough surface area to provide the desired evaporation rate. If you increase quickly, then bubbles will go - the very "boiling"
ivan88587
no, it’s not just air that doesn’t draw water, and it’s not steam, it doesn’t condense when cooled and doesn’t create a vacuum. Steam is heavier than air and displaces it in any boiling container, and then, if the container is closed, condensing into water, it forms a vacuum.
gustafa111
from this series: we take a 200l barrel (from a solvent, for example), pour water, boil, (you can immediately overtake steam there, it's easier) and let it cool (with the lid closed!), It is important not to touch it until it cools down) then we throw a stone at it and it collapses (tearing at the same time the fabric of the universe, forming a black hole, which will swallow the earth). By the way, very spectacular
Alik litvinov
I also invented different ways of obtaining vacuum, altered the bicycle pump, etc. And then I bought just such a thing http: // lavrplus. Prom. Ua / p52544665-vakuumnyj-nasos-2rs. Html
though it cost in 2013 1200 hryvnia, not 2700, as it is now. This pump creates a vacuum sufficient, for example, for experiments on boiling water at a temperature of only 2 - 3 degrees. And if you need a high vacuum, as in a picture tube, you also need a turbomolecular pump, unfortunately, its price is not affordable for a mere mortal, from about 20 thousand hryvnia.
High vacuum became available to people only some 120 - 150 years ago. It's hard to believe, such a simple and at the same time difficult to achieve substance.
Igor beletsky
+ max frost because there are no schoolchildren who often watch a lot. Post a link to this video on social networks, help me promote the channel and do cooler experiments, it's all in your hands!
Smdfb
Igor, you've probably seen a bunch of videos on the Internet about infinite energy (like they take a power filter and have a light bulb always on). How do you think these pranks are doing? All that comes to my mind is electro-magnetic induction. There must be a source somewhere nearby that creates an alternating electromagnetic field. Is it so?
Igor beletsky
+ den but of course they will not show it and did not show it to anyone, because as they heat up a bottle of water quickly without a microwave, this iron can can be heated, but then you will not see all the beauty of the process.
Id vlog
Igor, please help me solve the problem. In the socket electromechanical timer https: // youtu. Be / kgf51me3xms mechanism is driven by a roller-magnet rotating in a magnetic field created by a coil from 220 V. Is it possible to rewind the coil (and how?) So that it works with 2 AA batteries. And how to place permanent magnets on iron brackets so that they work only from magnets. The first question is more important. Thanks.
Igor beletsky
+ Azpuka kusa is long and difficult to do, try to do at least something yourself, but while complex experiments are being done, it was necessary to put something out so that people would not forget, is it really difficult to guess yourself.
Azpuka kusa
+ Igor Beletskiy (investigator) If you make a rather complex experiment, then the audience will be more attracted, and accordingly, everything will pay off. We are waiting for cool experiments from you
Igor Beletsky
+ azpuka kusa, I understand this perfectly and now I am preparing two such experiments at once, but until you bring them to their normal form, it takes a lot of time, I haven't posted at least one video a week and that's it - don't expect the channel to grow.
Igor beletsky
+ hofrin rus Yes, this is school physics, but you do not want to say that you or any of us were shown this at school before, or even more so today.
Andrey Rybin
the effect is not well explained, that is, what is the result of underpressure in the bottle? As a result of the fact that water heats up, and from contact with it heats up the air, then expands and is forced out of the bottle?
Petrogor
+ andrey rybin to understand, you need to pay attention to how water vapor differs from air. When the water boils, steam displaces all the air from the bottle and practically no air remains in the bottle. The bottle contains only gaseous water. When water passes from a gaseous state to a liquid, a rarefaction occurs.
Mikhail poluchankin
Why I didn’t understand how it works, but if you heat the bottle in oil to 120 ″ and do the same? Probably will burst. I haven't woken up yet, but it seems to me that a hot dry surface is needed to generate steam. And in the video you are in a hurry to drain the water, while the bottle is moistened, the water rises smoothly, and when it comes to the dry surface, steam forms.
Aquadvice
now you can make a piston steam vacuum engine. The efficiency will be much higher than that of a conventional steam locomotive. And if the working fluid is not water, but a low-boiling one, then the natural temperature difference can be used.
Igor beletsky
+ scwobu if there is such an effect then there will always be a use. For example, the same suction cup (attach something quickly to a smooth surface), or a primitive pump to quickly pump something out, etc.
Igor vorob
+ Igor Beletskiy (investigator) No offense, but not in the first commentary you write the preposition “so” separately, in the form of “whatever”. I understand semi-literate pupils who have not completed their studies, they do not know when it is written “to” and when “what” is written with a particle of the subjunctive mood “to”.
But you seem to consider yourself a popularizer of science. Would be more attentive to literacy, eh ?.
And thanks for the experience, clearly. Only for those who confuse “tsya” - “to be”, “so” and “whatever” - it would be nice for them to explain the essence of the phenomenon. Moreover, it is as accessible as possible.
Format128
and I
a nuclear power plant costs, for example, a billion. But if every day a couple of million people pays 2 rubles each, then it pays off. And what is the percentage of solar panels? So you won't be able to sell them cheaply.
trapwalker
you can make an efficient vacuum pump for pumping air in large volumes. It is necessary to lead a thin tube from the steam generator into a strong container, the coaxial valves block the steam supply pipe and switch the volume of the container to the pumped out circuit. After that, the tank must be cooled to condensation and the valves must be switched back. The installation can be easily scaled twice by installing a similar tank with valves in antiphase.
Nikolay Pshonnikov
+ trapwalker s https: // ru. Wikipedia. Org / wiki /% d0% 9f% d0% b0% d1% 80% d0% be% d0% b2% d0% b0% d1% 8f_% d0% bc% d0% b0% d1% 88% d0% b8% d0 % bd% d0% b0_% d0% 9d% d1% 8c% d1% 8e% d0% ba% d0% be% d0% bc% d0% b5% d0% bd% d0% b0
trapwalker
+ Nikolay Pshonnikov no piston is provided in my description. Piston, cylinder, O-rings - this is exactly what is very difficult to obtain in a domestic environment. But plastic pipes, fetings of any diameters and ball valves in any hardware store are sold very inexpensively and are easy to install without special skills.
Trapwalker
+ bang bang. I don’t understand something, if this is not a question, then. Why? Explain. If the question is, then. Xs. It's pretty useless. I love to generate ideas, this is my hobby, but these ideas do not go anywhere further than ideas (for the most part), because further is no longer my hobby (for the most part.
Jwserge
fucking
made discoveries for myself
THX.
Igor beletsky
+ jwserge I saw videos of aluminum cans and even large barrels collapsing in this way, but what would have flown in there before I saw, so I decided to try.
Alexei belousov
Even did not understand, there is still air while dipping the neck of the bottle into water. But where does he go then? Does it dissolve in water? It is not clear in general.
Glukmaker
18 grams of water in a gaseous state at atmospheric pressure occupies a volume of 22.4 liters
so it takes about 1/3 cc of water to fill a half liter bottle with steam. Therefore, if the steam displaced all the air from the bottle, and immediately clog it, then a decent vacuum will appear there.
Andrey sc
+ nradrus no. The maximum pressure that can be achieved in this way is equal to the pressure of saturated water vapor at the temperature of the experiment. Even at zero celsius, it is about 600 pascal, which is a lot for lamps.
Id13
+ andrey sem
, it is possible and something that is activated already above the boiling point of water at the existing pressure. TE First, clogging with 100% water vapor and a supply of reagents and a structure (for example, a radio tube), then calcining to activate the chemical that absorbs water.