DIY Sci - Egg In A Bottle Experiment

I want to show you how to take what we've learned about the power of air and apply it to a classic science experiment called the egg in the bottle. This is an old fashioned milk bottle. Now you don't have to use one of these. You could very easily find a bottle that has a similar opening. You're just trying to find a bottle where shelled hard boiled egg won't slip into the opening that's going to be really important. All right, so the question is, how do you get the egg into the bottle? If we were to heat the air in this bottle, those molecules that are close together now are going to move far away from each other and start to escape from the bottle. Then, after they escape from the bottle, if I could seal the bottle with the egg forming a one way valve, we could allow the outside air pressure to push on the egg as the air here starts to cool and as the air cools, the molecules come back together again means the pressure and the outside is greater than the pressure inside. Let's see if that hypothesis holds true. I've got my eggs there shelled. I put a little water on the eggs to kind of help out. I've got a piece of paper that we're going to light on fire. I've got my safety glasses and I've got the striker. Okay, so here we go. Strip of paper is on fire. This goes down into the bottle and that starts to burn. Now the egg goes on top like this. We're going to bam. I couldn't even finish it and it is inside. Your eyes were not playing tricks on you. Take a look again in slo-mo. You can see that now that fire went out as soon as the fire went out now, those molecules started to come back together again. The outside pressure pushed on the egg and. That's the egg in the bottle. I know what you're asking. Could you get the egg out of the bottle? So let's just reverse engineer what we just did. If I could make the pressure on the inside of the bottle greater than the pressure on the outside of the bottle, well I could shoot the egg out and probably into my mouth because that's the way I'm going to create the pressure. So look at what we have here. I've positioned the egg so that there's a seal here on the bottom. I'm going to push air in and hopefully the air can't come back out until the air pressure is great enough to pop the egg right back out. All right, here we go. Anything for DIY psi. Oh, here it comes. Here it is. There it is. See, it's starting to come out. It's going to pop out and bam. And the eggs out of the bottle.