It's very hot on the road

The surface temperature is much higher than the air temperature, and objects can store heat, and there are some physical knowledge, which will be known after learning physics.

Boiled eggs are not enough, fried eggs are needed. It's true.

I read a report that border guards in some hot areas of China have to walk for a long time at the border, so they have to take dry food with them. Always bring some raw eggs and some staple food. When you are hungry, scatter raw eggs on the shovel. After 2 minutes, the eggs will be cooked.