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.
From Wikipedia, the free encyclopedia. SpongeBob SquarePants is a fictional character, the protagonist of the American animated television series of the same name. He is voiced by actor and comedian Tom Kenny, and first appeared on television in the series' pilot episode on May 1, 1999.