This experiment involves simple apparatus:

• Two floating vessels (one is a buoy made of a cylinder and a cone; the other is a twin-hulled vessel resembling a catamaran). Each vessel has a mast that is used to measure the angle of list, and an attachment on the side to hang the jockey weight
• A small jockey weight for each vessel
• A tank filled with water deep enough to allow the vessels to float
• A large protractor mounted behind the tank to allow visual measurement of the angle of list from the mast