An inchworm is the caterpillar of a geometer moth. The Inchworm slithered like a worm, but had legs. The inchworm motor is commonly used in scanning tunneling microscopes (STMs). Squirm was an inchworm Greg found and took care of when he was nine. Inchworm was designed by Joseph M. Burck while he worked for Marvin Glass and Associates. These motors are also known as inchworm motors. The book tells the story of an inchworm who likes to measure everything. Philbert Wormly III is a dapper British inchworm, of the larger-than-average variety. Their characteristic shape has earned them the common name of cobra inchworm. One must edge forward like the inchworm, bit by bit. The movie's songs included "Wonderful Copenhagen", "Anywhere I Wander", "Thumbelina", and "Inchworm". The inchworm motor can be used in the patch clamping of biological cells.