In beaker A, you can see the oil and the water existing in separate layers. In beaker B, the beaker is shaken up, which disperses the oil in the water temporarily. When you set it back down again, however, (beaker C), you can see that it separates again. In beaker D, we added an emulsifier.
Why PI Was Created. PI was created to provide high school students a place where they can create their invention ideas. Too often, students conceive ideas that can change the world. Due to insufficient support and guidance, most high school students cannot bring their invention ideas to life.
Pi is known as an irrational number. When calculated, its decimal places are unending, and the numbers have no pattern of repetition. Therefore, it cannot be described as a ratio of two integers. The ancient Greek mathematician Archimedes is believed to be the first to calculate pi, which bears the same symbol as the 16th letter of the Greek alphabet.