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.
So they found a cozy place under the trees where they slept well until the morning; and Dorothy dreamed of the Emerald City, and of the good Wizard Oz, who would soon send her back to her own home again.