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.
Rating Newest Oldest. Best Answer: Spongebob made it's first air on May 1st, 1999. (what the first answerer said about the test run. This aired after the Kid's Choice Awards in 1999 to for the reasons they explained) It made it's official first air on July 17th, 1999. (this is when the show officially started to air regularly)