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Almost a day and a night.
A balloon is lifted off by the buoyancy of the air, and it can only be lifted off if the buoyancy of the air on it is greater than the gravitational force on the balloon itself. So for a balloon to rise into the air, there must first be air, otherwise it will not get the buoyancy it needs to rise; Secondly, the balloon must be filled with gases that are less dense than air, such as hydrogen, helium, hot air, etc., so as to reduce its dead weight and make it possible for it to rise.
The higher you go, the less dense the air becomes, the lower the atmospheric pressure, and the buoyancy experienced by the balloon gradually decreases as it rises in height. At a certain height, when the buoyancy of the balloon is equal to its own gravity, it will not be able to continue to rise, and it will remain in the air, as if it has hit an invisible "ceiling". Even many balloons will burst before they reach the "ceiling", because the air is getting thinner and thinner, and the pressure on the balloon is getting smaller and smaller, and the pressure inside the balloon is relatively large, and the balloon will continue to inflate and finally burst itself.
The balloon can fly into the sky on its own, and if this process continues, the balloon will gradually grow in size and eventually burst. We found that at a certain altitude, the size of the hydrogen balloon is constant, that is, the balance of the internal and external atmospheric pressure of the hydrogen balloon, in the process of its rise, due to the decrease of the external atmospheric pressure, the hydrogen balloon will inevitably expand due to the excessive internal pressure, and the hydrogen balloon made of its bearing capacity is limited, when this limit is broken, the hydrogen balloon will **. As for getting smaller and smaller, this is simply impossible in its ascent.
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You have to be careful with this balloon, don't touch high-heat items such as light bulbs, otherwise it will ......Generally speaking, both lighter-than-air aircraft and heavier-than-air aircraft have an absolute ceiling (i.e., an altitude beyond which the speed of the aircraft will be infinitely close to the minimum controllable speed and the lift will be reduced. This is the case when the aircraft is powered, and the power of the balloon is the static buoyancy generated by the air. )。
The ceiling of a heavier-than-air aircraft is determined by the engine, while the balloon is determined by the density of the surrounding fluids (including gases and liquids), and once the density of the surrounding fluid is less than the average density of the balloon, the balloon descends.
Generally speaking, as long as your balloon is tightly sealed and does not leak, it will have eternal life......Again, hydrogen is flammable and explosive, please use it with caution and safety first.
Now the safer balloon filling gases are nitrogen and helium, because the density of helium is lower, ** is higher, and the more common application is nitrogen. But in any case it is safer than hydrogen.
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It is impossible to crash into a plane without being around the airport. The general hydrogen balloon can't fly too far and too long, and the balloon will fly for a while, because the higher it flies, the smaller the air pressure, and the volume of the balloon itself will become larger, and it will be large to a certain extent, about 1500 meters, and the normal flight altitude of the aircraft is about 6000-15000 meters.
Dangers of Hydrogen Balloons:
Since hydrogen is cheaper than inert gases such as helium, most of the balloons sold on the market are hydrogen balloons. When hydrogen gas rubs against other objects to produce static electricity and encounters an open flame, it is prone to ** or combustion. In addition, most of the colorful hawker balloons sold on the market are hydrogen balloons, and the safer ones are helium balloons.
Precautions for making hydrogen:
1. The hydrogen engine must be kept away from the fire, not in the place where there is a fire, and not in the kitchen or bedroom. When making hydrogen, remember not to smoke and not to look at the depth of the bottle with a lighter.
2. After using up the gas, pour out the scum inside, and choose a special basin to put it Don't pour it into the sewer to avoid blockage.
3. The hydrogen balloon that has been flushed with hydrogen should also be kept away from the flames.
4. The sealing machine is adjusted to the edge of the edge and does not rot the ball skin bonding, and the dregs should be poured out after the gas flushing, cleaned with water and then loaded.
5. When inflating, rush slowly, and rush to the edge of the ball 2 inches. The sealing machine sealing is to put the balloon into a flat balloon without wrinkles, which is not easy to cause air leakage, and there are certain skills in sealing.
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Hydrogen balloons can fly up to 10 kilometers, and ordinary ones can fly 1500 to 2000 meters. The inside of the hydrogen balloon is filled with hydrogen, hydrogen is very light, the density is about grams per liter, lighter than air, so it can float in the air, ordinary Kuchang toy hydrogen balloon can generally fly to 1500 2000 meters in the air. If you want to know more about "how high can a hydrogen balloon fly", you can read on.
1. The flight altitude of ordinary toy hydrogen balloons is limited, and the general flight altitude is about 1500 2000 meters, and it will be ** after reaching this altitude.
2. In the process of the hydrogen balloon rising, because the pressure of the air outside the balloon will gradually be less than the pressure inside the balloon, the balloon will burst after reaching a certain limit.
3. Because the mass of hydrogen is very light, as long as you let go or the rope is broken, the balloon will fly into the sky immediately, and it can fly so high and far.
4. However, the altitude at which a hydrogen balloon can fly is affected by some factors, such as the elasticity and material of the balloon.
<> hydrogen balloon will fly to a certain altitude. Because the density of the air is lower the higher up, the lower the air pressure, and when the air pressure is lower than the internal air pressure of the hydrogen balloon, the hydrogen balloon will occur**.
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Summary. Existing studies have found that hydrogen has antioxidant, anti-inflammatory and anti-apoptotic effects, and most of the current hydrogen inhalation stays in the animal experiment stage, and the benefits and benefits of hydrogen inhalation for human beings are still unclear. Theoretically, hydrogen is reducible and can selectively neutralize toxic free radicals.
The physiological process of disease includes oxidative damage, therefore, hydrogen, as a selective antioxidant, may have a leading effect on disease. Hydrogen also has anti-inflammatory effects. Inflammation is a common physiological process, and the release of inflammatory factors can lead to body damage.
To a certain extent, hydrogen can maintain the production of inflammatory factors and promote the release of anti-inflammatory factors. At present, some studies have confirmed this effect, but the actual clinical effect needs to be further studied and confirmed. In addition, hydrogen for medical use is produced by electrolysis of water using medical-grade equipment, and the concentration is generally controlled at 2% to 3%.
Individuals should never try it on their own to avoid serious consequences.
First of all, hydrogen is a flammable and explosive dangerous gas, it is recommended to use helium (inert gas in the cavity) rubber balloon to coat the protective agent, choose a light color to prevent the oxidation of the rubber balloon, can be used for 60-72 hours, without the use of protective agent generally 12-24 hours. Wupai aluminum film balloons can generally guarantee more than 15 days of orange shirts, and the color, pattern is rich, safe, but slightly expensive.
Existing studies have found that hydrogen has antioxidant, anti-inflammatory and anti-apoptotic effects, and most of the current hydrogen inhalation stays in the animal experiment stage, and the benefits and benefits of hydrogen inhalation for human beings are still unclear. Theoretically, hydrogen is reducible and can selectively neutralize toxic free radicals. The physiological process of the occurrence of the disease includes oxidative damage, therefore, hydrogen, as a base-drain selective antioxidant, may have a leading effect on the disease.
Hydrogen also has anti-inflammatory effects. Inflammation is a common physiological process, and the release of inflammatory factors can lead to body damage. To a certain extent, hydrogen can maintain the production of inflammatory factors and promote the release of anti-inflammatory factors.
At present, some studies have confirmed this effect, but the actual clinical effect needs to be further studied and confirmed. In addition, hydrogen for medical use is produced by electrolysis of water using medical-grade equipment, and the concentration is generally controlled at 2% to 3%. Individuals should never try it on their own to avoid serious consequences.
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About 1500 meters.
The general hydrogen balloon can't fly too far and too long, and the balloon will fly for a while, because the higher it flies, the smaller the air pressure, and the volume of the balloon itself will become larger, and it will be ** when it is big enough to a certain extent! It's about 1500 meters.
A manned hydrogen balloon once flew a world record of 30,942 meters.
In 1927, the American Gray set a height record of 12,900 meters in a balloon, but died due to lack of oxygen. In response to the high oxygen deficiency, Picard, a Swiss, developed a special oxygenation capsule for balloons in 1931, which provided a guarantee for the continuous innovation of the balloon's altitude in the air. In 1933, the "Soviet Union-1" balloon rose to 19,000 meters; In the same year, the Soviet Union set a new record of 22,000 meters.
On August 19, 1957, Major Simmons of the U.S. Air Force set a world record for a manned balloon at an altitude of 30,942 meters.
Can a hydrogen balloon hit a plane.
It is impossible to crash into a plane without being around the airport. When this kind of balloon flies to a certain height, it will be atmospheric and natural**. And the normal flight altitude of the aircraft is about 6000-15000 meters.
Medium-sized and above civil aircraft are flying at high altitude, which refers to the space at an altitude of 7,000-12,000 meters. In this space, there are 1 height layer of 1 km, which is divided into 6 height layers: 7 km, 8 km, 9 km, 10,000 m, 11,000 km and 12,000 km.
High-flying aircraft are only allowed to fly above a given altitude.
In addition, when civil aircraft fly, the zero degree limit is due south and north, and all aircraft heading to the right (east) fly even high-level layers, that is, 8 kilometers, 10,000 meters, and 12,000 kilometers of altitude layers; All aircraft heading to the left (west) fly in the singular altitude layer, i.e. 7 km, 9 km, 11,000 km altitude layer.
Short-route aircraft generally fly at 6,000 meters to 9,600 meters, long-route aircraft generally fly at 8,000 meters to 12,600 meters, and the maximum flight altitude of ordinary civil airliners will not exceed 12,600 meters, and some business jets can fly at an altitude of 15,000 meters.
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Since hydrogen and helium are both lighter gases than air, balloons are in the air like wood in water, buoyant upward and gravity downward. When the buoyancy is greater than the gravitational force, the balloon can fly into the sky.
Balloons are usually filled with hydrogen or helium. Hydrogen or helium is much lighter than the same volume of air, so a balloon filled with hydrogen or helium will have more lift. If you hang a big basket under the balloon, you can take people to the sky.
In addition, there is now a hot air balloon that is filled with hot gas. We know that hot air is lighter than cold air, and when the balloon is filled with hot air, it will be buoyant upward by the cold air around it, causing the balloon to rise, and if the heat is controlled, it can stay at different altitudes.
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Mystic Physics: Do You Get It? Why do hydrogen balloons fly into the sky.
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Because hydrogen is less dense than air. It is buoyant by the air so it floats.
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The hydrogen balloon is affected by both air buoyancy and gravity in the air, because when on the ground, the density of hydrogen is smaller than that of air, so when on the ground, hydrogen will rise because the buoyancy is greater than the gravity, and when it rises to a certain height, the air becomes thinner and the air density becomes smaller, resulting in the hydrogen balloon when the gravity is equal to the air buoyancy, the hydrogen balloon will no longer rise. Stopped in the air.
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Because the density of hydrogen is much less than that of air.
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The balloon that rises into the sky is filled with hydrogen, which is the lightest of all gases, oxygen is 15 times heavier than hydrogen, carbon dioxide is 21 times heavier than hydrogen, and the air around us is also 13 to 14 times heavier than hydrogen, so when the hydrogen fills the balloon, the outside air can hold the balloon filled with hydrogen into the sky.
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Because the specific gravity of hydrogen is less than that of air.