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 was created and designed by cartoonist and marine biologist Stephen Hillenburg, who began developing the show shortly after the cancellation of Rocko's Modern Life in 1996. Hillenburg intended to create a series about an over-optimistic sea sponge living in an underwater town. Hillenburg compared the character's personality to Laurel and Hardy and Pee-wee Herman. As he drew the character, he decided that a squeaky-clean square like a kitchen sponge fit the concept.