IUPAC Green Book[3] in that, in terms of its definition [4], pH = âlg a. H. it involves a single ion quantity, the activity of the hydrogen ion, which is immeasurable by any ther-. modynamically valid method and requires a convention for its evaluation.
The series officially premiered on July 17, 1999. It has received worldwide critical acclaim since its premiere and gained enormous popularity by its second season. A feature film, The SpongeBob SquarePants Movie, was released in theaters on November 19, 2004, and a sequel was released on February 6, 2015.
Tom Heintjes gathered insights and reminiscences from some of the people behind SpongeBob SquarePants to illuminate the making of a cultural phenomenon. Itâs SpongeBobâs ocean; we just swim in it. When the first SpongeBob SquarePants episode (âHelp Wantedâ) aired on May 1, 1999, it did so with little fanfare.