science side of tumblr? explain?
levitate egg sackiatoo
yeah okay thanks hp fandom
the burning candle uses up all the oxygen in the bottle, which creates and a vacuum, and the resulting suction makes the egg go nyooom.
Thank you science side
That’s the explanation I’ve always heard, but something’s wrong here. The fire uses the oxygen, but it doesn’t just disappear. It turns it into something else. Even if carbon dioxide has less volume, causing a vacuum, the egg doesn’t start moving until after the candles go out, even though they continue spewing smoke, which should lessen the suction.
I’m betting it has something to do with temperature.
Yup. It’s not oxygen starvation, it’s thermodynamics. The flames heat up the air inside the bottle, causing it to expand. Then, when the flames go out because of oxygen starvation, the air in the bottle cools and contracts, forming a partial vacuum. Now the air pressure on the outside of the bottle (and its egg stopper) is high enough in relation to the partial vacuum in the bottle that it just squidges the egg into the bottle and impresses the internet.
you can use thermal expansion in your daily life, btw. bottle cap stuck? run the cap, but not the bottle, under hot water. the cap will expand, and unstick itself.