Why do we need wheels

How far can different wheels take you in an hour through "Light Car Fast Travel"? Through "efficient lifting", you can learn how to skillfully use pulleys to lift heavier objects? Through "lightweight teleportation", we can understand how wheels enable goods to "run" on their own? Can you understand if time would stop without wheels through 'precise timing'? What are the wonderful uses of wheels in agriculture that can be understood through "agricultural irrigation"? Through the clever use of energy, we can understand why power generation cannot be separated from wheels?

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.