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.
8 Differences Between the Wizard of Oz Movie and Book. The Wizard of OZ movie (1939) has captured viewers for years, 75 years to be exact. The book, written by L. Frank Baum in 1900, was the inspiration behind the timeless classic. The problem, though, is that the movie does not follow the book at all.