"Give me a fulcrum and I can tilt the earth" is just an assumption of Archimedes. Theoretically, this assumption is true. As long as there is a stick long enough and a fulcrum, it can really overturn the earth. But in fact, this is impossible. The average diameter of the earth is about 12742.02 km, and it weighs about 597.6 trillion tons. There is really no stick long enough to bear such a heavy weight in the world. So Archimedes' hypothesis is not feasible in scientific practice. "Give me a fulcrum and I can pry up the earth." Now it only brings Archimedes' own scientific spirit and exploration spirit to inspire us to pry up our firm belief with a stick and a fulcrum on the dream planet.