Question

what is the method that is helpful to know about the person born in that year after so long time of his death​

Answer 1

❤️Archimedes found that the volume of a sphere is two-thirds the volume of a cylinder that encloses it. He also discovered a law of buoyancy, Archimedes' principle, that says a body in a fluid is acted on by an upward force equal to the weight of the fluid that the body displaces.