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 began being symbolized by the pi symbol (Ï) in the 1706 by the British mathematician William Jones. Jones used 3.14159 as the calculation for pi. Pi r squared. In basic mathematics, pi is used to find area and circumference of a circle.Pi is used to find area by multiplying the radius squared times pi, or. So in trying to find the area of a circle with a radius of 3 centimeters, Ï3 2 = 28.27 cm.y definition, pi is the ratio of the circumference of a circle to its diameter. In other words, pi equals the circumference divided by the diameter (Ï = c/d). Conversely, the circumference is equal to pi times the diameter (c = Ïd).