Archimedes, a famous mathematician, used his wisdom to help defend lagus when the Roman army attacked it. He designed and manufactured the grappling hook of the pulley chain, and caught the ships of the Roman fleet one by one in mid-air and smashed them to pieces.

Archimedes' wisdom delayed the fall of Lagos for three years. Later, the city people were negligent and relaxed their vigilance. The Roman army took the opportunity to quietly climb over the city wall and open the city gate.

The enemy rushed into the city and shouted ShaSheng earth-shattering. Archimedes did not escape, and his research work was not completed. He sat there, absorbed in drawing circles and calculating profound mathematical problems. When a drunken Roman soldier ran towards him with a knife, Archimedes looked up and said, "My friend, let me finish drawing this circle before you kill me." However, the Roman soldiers didn't care at all and raised their knives and cut at him.

Lying in a pool of blood, the old mathematician finally said feebly, "Well, you took my body, but I will take my heart." .