In mathematical induction, showing that something works for the first case, or that P1 is true. angle of depression. The angle formed by a horizontal line and an observer's line of sight to an object below. angle of elevation. The angle formed by a horizontal line and an observer's line of sight to an object above.
Plankton's voice is provided by American actor Mr. Lawrence. The voice Lawrence uses for Plankton originated as an imitation of one of his deep-voiced friends from high school. On television, he first used the voice for incidental characters on Rocko's Modern Life.
This Character Biography topic is currently locked. Sheldon J. Plankton is a one-eyed, two antennaed plankton and is SpongeBob SquarePants' arch nemesis. He owns the Chum Bucket restaurant, a rival of Mr. Krabs' Krusty Krab, where SpongeBob works. The Chum Bucket has never been successful, in part because it serves food with chum as an ingredient.