Archimedes' father was an astronomer and mathematician. He received a good education since he was a child and especially loved mathematics. Once, the king asked him to determine whether the crown just made by the goldsmith was pure gold or mixed silver, and warned him not to destroy the crown. At first, Archimedes was at a loss. Until one day, he soaked in a basin full of bath water, and the volume of spilled water was equal to the volume of his body immersed in the water. Then, if the crown is immersed in water, according to the rise of the water surface, the volume of the crown is equal to the volume of equal weight gold, which means that the crown is pure gold; If mixed with silver, the crown will be bigger. He jumped out of the bathtub excitedly and ran to the palace naked, shouting, "I found it!" " I found it! "He invented the principle of buoyancy. In addition, he also discovered the famous lever principle. Along with this invention, a well-known famous saying came into being: "Just give me a fulcrum and I will move the earth. "

In his later years, Archimedes' motherland was at war with Rome. When the city where he lived was looted, Archimedes also devoted himself to studying the geometric figures he drew in the sand. Cruel Roman soldiers stabbed a 75-year-old man to death, and great scientists threw themselves on blood-stained geometric figures. ...

After Archimedes' death, people compiled and published The Complete Works of Archimedes' Legacy, in order to remember the great achievements of this great scientist forever.