What is a Harbottle? The science and demonstration of atmospheric pressure!

[@megannea.1247]

That's crazy!! Thanks for teaching about so many fascinating principles in simple ways!

[@PlasmaChannel]

This was rather interesting. Never heard of these.

[@DestructiveCreativity]

Thanks for stopping by! Honestly, I still geek out a bit when I see that you actually watch some of my videos. I just watched your last episode on Saturday. 😀

[@GodsWordMadeSimple]

Love these videos, this is one of my favorite random subjects, and the hard bottle I've never seen before, that is such a cool and easy way to demonstrate these physical forces!

[@GodsWordMadeSimple]

By the way even aside from the goof of the green screen, that is one of my favorite shirts that you have worn!

[@DestructiveCreativity]

Atmospheric pressure is amazing. Let me know if you guys have any experiments you would like to see on the channel!

[@superfluidity]

I wouldn't say the water is forced out of the balloon by the atmospheric pressure. The atmospheric pressure on the bottom pushing the water up is almost entire cancelled out by the pressure from the top pushing the water down. The difference between those two is enough to lift helium, nowhere near enough to lift water. It's the elastic tension in the rubber that pushes the balloon up - and it's the atmospheric pressure from the top that resits that while the stopper is in the bottle of the bottom preventing the pressure from reaching the bottom of the balloon.