“So you know how when you go really fast with a chariot , it slips and slides around in tight turns? And you know when it’s really windy and you hold your hand like this, it gets pushed up? And when you hold it the other way, it gets pushed down? Right. We can use that to solve the chariot problem. We can put a board on the back of the chariot in the same way you would hold your hand to have it pushed down. That way, the chariot gets pushed down and has better contact with the ground so it stays more stable.”