Friction
S3, E8: Bill Nye illustrates how various types of transportation utilize friction, from traction in trains and the "roll" of ball bearings in skateboards and automobiles, to the lack of friction in a hovercraft.
S3, E8: Bill Nye illustrates how various types of transportation utilize friction, from traction in trains and the "roll" of ball bearings in skateboards and automobiles, to the lack of friction in a hovercraft.