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.
Why Is the Greek Letter Pi the Symbol for That Mathematical Ratio Anyway? If the spike in lookups of pi at Merriam-Webster.com are any indication, many caught wind that today was Pi Day but weren't quite sure why. Pi is the English spelling of the sixteenth letter of the Greek alphabet. It means both the symbol Ï denoting the ratio of the circumference of a circle to its diameter and the ratio itself: a transcendental number having a value rounded to eight decimal places of 3.14159265..