Is it possible to use a tube to make a balloon fly off the earth?

No, the thinner the outer layer of air, the less pressure there is, and the less buoyant it is, and the balloon will stop when it rises to a certain position, even if it does not explode due to the increase in internal pressure.

I don't think so.

Because the upper layer of air is thin and the pressure is smaller, and the pressure inside the balloon is greater, it will make the balloon keep getting bigger and bigger as it rises, expanding, and eventually bursting.

No, the outside air pressure of the vacuum is zero, and the balloon will infinitely expand and will burst.

Let's change it to something else.

Blowing into the air the balloon does not rise. The balloon blown into hydrogen helium rises but is buoyant by the air, there is no air in outer space, and even without considering external factors, the balloon does not explode, and there is no buoyancy to make it rise.

Yes, the landlord can stand on the other side of Mars and pull the balloon.

No, there is not enough oxygen to fly to a certain altitude, and the flame will automatically extinguish.

There is no air in outer space and it cannot burn.

If you can't touch a certain point in the atmosphere, you won't be able to bear it.

Can't fly.

not enough oxygen; The higher the external air pressure, the lower the internal air pressure will be much higher than the outside, and the balloon will **;

The higher the air, the thinner it is, and the air pressure is so low that it cannot bear the weight of the balloon, and then consider the speed of the balloon, it cannot reach the speed of escaping from the earth, so it cannot fly out.

No, the temperature in the atmosphere is so low that you can't imagine it.

Can't hot air balloons are useless in a vacuum.

No, the balloon can't fly out of the atmosphere.

It shouldn't be able to fly out, the high air pressure is too great.

No, you can't fly when you reach a certain height.

And this is because of the atmospheric pressure, and it's the same with airplane balloons, the higher the air pressure, the lower the air pressure, and the air pressure inside the airplane (balloon) is smaller than the atmospheric pressure outside, so the airplane (balloon) will explode when it reaches a certain altitude, just like the deep ocean flattening something. The above can barely be said to be correct.

They did not reach the first cosmic velocity, the speed at which objects on the ground need to get rid of gravity!!

Airplanes don't reach the first cosmic speed, and jets need air, fuel, to burn.

Balloons are buoyant by air.

To put it simply, they all rely on air buoyancy to overcome gravity, and when they reach a certain height, they have no air, so they can't fly out.

A hot air balloon relies on buoyancy, which is the force of air within the confines of the atmosphere around the Earth.

The hot air balloon exploded when it reached a place where the air was thin.

It is definitely illegal, and any aircraft in the country needs to be approved in the sky, although it does not matter if the model aircraft is moved several tens of meters high, but it does not mean that it is allowed. Homemade helium balloons like you said will certainly not be approved.

I don't know how big you plan to make it, if it's the kind of balloon size that is common on the market, it's not a big problem, and no one will care. But that one can't fly very high and it will blow up, and it won't reach space at all.

As for the automatic parachute, get a height sensor, or the kind of automatic fixed-height parachute in skydiving sports equipment, you should be able to buy it online. It's not a big deal.

However, there is also a problem that if you open your parachute and float down, you don't know where it will go, and you may never find your camera equipment.

You'll need to apply for permission from your local air traffic control department (which is the most troublesome!) Generally, I have to go to Inner Mongolia to put the husk once.

Helium is expensive, at least 1000+.

The stratospheric temperature is quite low, dozens of degrees below zero, and the mobile phone can't stand it, so you have to use professional equipment, otherwise the temperature difference is easy to damage when landing.

If the device is damaged, you will also be responsible for the consequences of the damage to the device.

Parachutes, you can buy the kind that is timed to open, or open according to gravity (this is my guess, there is no basis).

See Encyclopedia: How to cast balloons.

The opening of the parachute can be triggered by air pressure or altitude or timing.

It's hard to say, it depends on the specific situation.

Well, keep it simple.

The plane can not fall off because the plane has wings. When an airplane flies, the airflow through the upwardly bulging wings creates an upward lift force and the plane does not fall off. But the plane has to fly at a very fast speed, and the faster it flies, the more lift it has.

When the plane stops, the air flow does not flow through the wings, and the lift is gone.

The rocket can not fall because of the reaction force generated by the rocket engine. Blow a balloon, then release the balloon, let the air inside rush out of the balloon mouth, the balloon will fly in the opposite direction of the balloon mouth, this is the air sprayed will give the balloon a reaction force. It's the same with rockets.

The rocket engine jets downward, and the upward reaction force generated will propel the rocket upward.

Balloons (should be hot air balloons or hydrogen balloons, helium balloons) do not fall because of the static buoyancy of the air. Things that are lighter than water can float on water because the weight of the water they drain is greater than the weight of the thing itself. It's the same with balloons.

Air also has weight. If the weight of the air is heavier than the content in the air, the thing will float in the air and will not fall off. A hot air balloon is heated air, and when the air is heated, it expands and becomes lighter, so it floats in the heavier air outside.

Hydrogen and helium are much lighter than air, and a balloon filled with these two gases will be lighter than the air it dispenses, so it can float in the air without falling.

Simple enough, right?

I watched it when I was a kid, and the name of this special effect is "Special Rescue Search Team", which belongs to the metal hero series. The main characters are three police officers who transform inside a car.