The machine fastens to the compound restof the lathe with a T-slot bolt which fits in the slot of thecompound rest in the same manner as the lathe tool post. Thetool post grinding machine mounts grinding abrasive wheelsranging from 1/4 inch to 3 or 4 inches in diameter for internaland external grinding operations.
Species representation. A running gag throughout the Animaniacs series is the question of what animals, if any, the Warners are meant to be modeled after. The series' other characters are cartoon representations of various animals such as mice, birds, monkeys, and squirrels, but the Warners are intentionally ambiguous.
Plesiadapiformes is an extinct order of mammals which is either closely related to primates or a precursor of them. They first appear in the fossil record between 65 and 55 million years ago. It is thought that these were the first mammals to have developed finger nails in place of claws. Based on fossil evidence, the earliest known true primates were represented by the genus Teilhardina date to 55.8 million years old. This was a marmoset like primate that lived about 56-47 million years ago. Archicebus is a genus of primate also from around 55 million years ago.