King Tut chariots

King Tut chariots appear to be the first mechanical systems which combine kinematics, dynamics and lubrication principles.The bearings are built exploiting the modern principle of a hard material against a soft material, and by applying animal fat between the surfaces. The grease reduces friction and increases running duration
When set in motion, immediately after initial start-up, the friction between the wood of the bearing, the grease and the wood of the wheel pivot heat the grease. The grease then becomes partially fluid and ensures a dynamic support.Indeed, Greek, Roman and Celtic chariots normally had the axle at about the center of the body, making for a harsher ride.