Its pH changes very little when a small or moderate amount of strong acid or base is added to it and thus it is used to prevent changes in the pH of a solution. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications.
The Wizard of Oz movie musical premieres in Oconomowoc, Wisconsin. The Wizard of Oz, starring Judy Garland and featuring words and music by E.Y. âYipâ Harburg and Harold Arlen, receives its world premiere in Oconomowoc, Wisconsin, on this day in 1939.
From Wikipedia, the free encyclopedia. Oscar Zoroaster Phadrig Isaac Norman Henkle Emmannuel Ambroise Diggs (also known as the Wizard of Oz and, during his reign, as the Oz, the Great and Terrible) is a fictional character in the Land of Oz created by American author L. Frank Baum.