Because the microwave oven heats up gradually from the inside out during work, the eggshell closes, causing internal high-temperature expansion and explosion. ? Other answers: the microwave oven heats the water molecules in the eggs. Once the water in the eggs turns into steam, the eggs are boiled. 1. Fire is caused by uneven heating. Microwave ovens generate heat by making molecules vibrate at high speed and rub against each other. So the instructions of the microwave oven say that it is dangerous to heat and seal things, and it is enough to make a hole in it to boil eggs. I have never used a domestic microwave oven. But I also use the microwave oven when I do moisture analysis of coal in class. The microwave oven here is based on the principle of * * * vibration, that is, the frequency of electric waves emitted by the microwave oven is the same as the vibration frequency of water molecules, so that the water molecules can vibrate * * *, and then they are separated from coal, thus obtaining coal without moisture. I think the microwave oven I use here is the same as the microwave oven at home, and it also uses the principle of vibration. 3. Why do eggs explode? The principle of microwave heating is that microwave itself does not generate heat, but it can accelerate the eating of M 1? The rotation of water molecules in food, when microwave makes polar molecules such as water, oil, sugar and protein rub against each other, will produce heat; Just like we get hot when we rub our hands quickly. When an egg is heated in a microwave oven, the water in the egg will be heated into steam and the egg will explode. Previously, incidents of personal injury caused by cooking eggs in microwave ovens occurred frequently. According to related reports, the light explosion of eggs hurts the face. In severe cases, eggshells will penetrate into the meat and eyes, scalding the cornea and causing blindness.