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.
Since its debut on May 1, 1999, SpongeBob SquarePants has broadcast 205 episodes, and its tenth season premiered on October 15, 2016. The SpongeBob SquarePants Movie, a feature-length film, was released in theaters on November 19, 2004 and grossed over US$140 million worldwide.