who discover the concept of density

Probably Neanderthals first noticed the density of things around them. The Greek Archimedes is credited with being the first to measure density.

http://en.wikipedia.org/wiki/Density

thx u ms.sue

The concept of density was discovered by the Greek philosopher and mathematician, Archimedes. Archimedes is well-known for his extensive contributions to mathematics, physics, engineering, and astronomy. He lived during the 3rd century BCE in the ancient city of Syracuse, on the island of Sicily.

Archimedes realized that the density of an object could be determined by comparing its mass to its volume. He famously used this understanding to solve the problem of determining if a crown made for the king was made of pure gold or if it contained any other less dense materials. According to the legend, Archimedes had a Eureka moment while taking a bath and observed the water displacement caused by his body, which led him to discover the concept of density.

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