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.
He began developing SpongeBob SquarePants into a television series in 1996 upon the cancellation of Rocko's Modern Life, and turned to Tom Kenny, who had worked with him on that series, to voice the title character.
Post-Movie Era (2005-present) TV advertisements for SpongeBob's fourth season first aired publicly during the 2005 Nickelodeon Kids' Choice Awards. The new episodes began airing on May October 3, 2003. The first new episode of Season 4 was Fear of a Krabby Patty/Shell of a Man.