For those who don’t understand what’s happening, here’s the solution:When the paper is on fire and is thrown into the bottle, heat is transferred from the paper to the air, which causes the air particles to vibrate more faster and collides with each other more frequently. The heat in the air is also transferred to the bottle, which causes the bottle particles to vibrate more faster and collides with each other more frequently. This expands both the bottle and the air which led to the bottle hole diameter to increase. Thus, the hole got bigger and the egg fell down eventually. :)
