Modern clay models start out with a steel frame that the wheels are connected to, with most of the shape being made of foam. The clay makes up the fine details of the outer skin, and usually has a ...

Narrator: Clay models can also be useful for aerodynamic testing. In the wind tunnels, where engineers evaluate a car's drag, or how easily it passes through the air around it, ...

Ironically, making clay sculptures was initially just a pastime for Klaus, though it was very early on that he had made the character of PotBoy, a lantern creature with a small flame on top of his ...