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 SquarePants has featured the voices of Tom Kenny, Clancy Brown, Rodger Bumpass, Bill Fagerbakke, Mr. Lawrence, Jill Talley, Carolyn Lawrence, Mary Jo Catlett and Lori Alan since it began. Stephen Hillenburg started developing the SpongeBob concept into a television series in 1996 upon the cancellation of Rocko's Modern Life, which he directed.