To determine the relative density of gemstones is to use Archimedes’ principle, and a precise balance can be used to determine the quality of gemstones and the buoyancy experienced. ตัวอย่างเช่น, if a gemstone with unknown name has a mass of 5.2 grams in the air and 3.3 grams in water, its buoyancy is 5.2 […]
