雞蛋撞地球原理

By gravity = =".....

I think you are having the game that making egg falling and reach the ground without breaking it.

There are two simple ways to fulfill it.

First, to lower the speed of falling.
This can easily be done by putting parachate on it.

The next one is to enlonger the contant time of collision with the ground.
This can easily be done by fixing soft materials at the bottom of it.

The thoery is only be conservation of momentum.
F = -mv/t, where F is the force on the egg, m is mass,
　v is the speed when hitting the ground and t is the time of impact.
The principle is to reduce the force and thus the egg will not be broken.

This is a easy win game. Good luck.