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.
(Wonderful Wizard of Oz) Dorothy Gale is a fictional character created by L. Frank Baum, author and creator of the Oz Legacy. She is the child protagonist and heroine of Baum's first Oz book, which is considered to be one of the first American Fairytales written titled: 'The Wonderful Wizard of Oz', published in 1900.