What is Air Pressure? Impossible Egg in a Bottle Physics Experiment - Learn About Air Pressure

In this Physics Experiment, we will discuss what air pressure is and how it works. Our experiment will be the famous egg in a bottle demo. By heating the air inside of a bottle with a match, an egg can be forced into the bottle due to air pressure.

What happens is that as the air cools off inside of the bottle, the pressure becomes lower inside of the bottle compared to outside. Because of this, the outside air pressure pushes on the egg and forces it inside of the bottle.

[ibrahimbhayat]

Then the only way to get it out is to increase the pressure inside the bottle in such a way that it will be greater than atmospheric pressure. As you all know, air moves from high pressure to low pressure. The only way to increase the pressure is to use a straw and blow. Thank me in your exams.

[thuyenpham]

Can I ask that how can we apply the result of this amazing experiment? Thank you very much.

[theplayingofgames]

Did this experiment in School, my teacher explained it in an entirely different way and it took a lot less time to explain!

> Flames burn oxygen in the bottle, process creates vacuum, egg gets sucked in!

done!

[joshuaramsamooj]

That was my last egg and i'm hungry, ow can I get the egg out?