caption: The image shows a drawing of a machine with a wheel on it, which appears to be a catapult. The drawing is on a piece of paper with some text written on it. The catapult is composed of a large wheel with a handle on one side and a smaller wheel on the other. The wheel is connected to a metal frame with a pulley at the end. The text on the paper provides further details about the catapult, such as its purpose and how it works.