The physics of What ...? -- Bones of contention -- Skin care -- Makeup -- Combustion -- Power play -- The wizard and the flying car problem -- running with the pack -- Texas motor speedway at 150 mph -- Sound thinking -- The rubber hits the road -- Shock therapy -- The two-lap dash: a qualified success -- Keeping drivers (and fans) alive -- Making racing SAFER -- Practice doesn't always make perfect -- Elliott is hot -- the Locusts in the pit box -- The checkered flag.