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.
Seventy-five years after it hit the big screen, âThe Wizard of Ozâ remain as much a part of Kansas as wheat, sunflowers and bison. Dorothys of Kansas on the Kansas State Senate Floor in 2012. This year marks the 75th anniversary of âThe Wizard of Ozâ movie.