The principle of Ki's best del Camino (English: Archimedes ' principle). Named after an excellent sahaeng Mitsubishi Ki-Syracuse Who discovered this rule is the first one [1], which is a floating force rules and instead of saying when an object instead of fluid will be strong resistance is equal to the weight of the fluid volume as a sunken sections. From this principle, understand the principles of iron ships, for example, why many of the floating of different types have different density. R. Keith is a great story of sachi, density and relative to the water is called specific gravity. From this principle allows an excellent Gold Crown is a good stylist can simply prove the Crown to melt impurities in the Golden Temple is a great blend of saha arc method by removing the Gold Crown volume to replace the water and let the water overflow out.