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.
SpongeBob's 10th anniversary and Future (2009-present) A primetime SpongeBob SquarePants 10th Anniversary documentary special has been announced for summer 2009, discussing the history of the cartoon, and its impact on popular culture. Also, a beta version of a new SpongeBob website debuted 9 January 2009.