Archimedes is best remembered as an ancient Greek scientist who made legendary contributions to mathematics, physics, engineering, and astronomy. Archimedes, who lived about 300 years before Christ, is also remembered for his discovery of the relation between the surface and volume of a sphere, and its circumscribing cylinder.
He played a major role in developing calculus and analysis. This scientist explained how levers worked, and built war machines levers. But, Archimedes principle which explains how to measure the volume of an irregular object.
Archimedes discovered his principle quite by accident. He noticed that the water level of the bathtub rose when he got in, and he realized that you could measure volume by putting it on water, and measuring how much scientist got so excited by this discovery that he ran through the streets naked, yelling ‘Eureka!’ which is Greek for ‘I figured it out!’