Given that 75 million people are fans of the racing circuit, physicist

Diandra Leslie-Pelecky probably doesn’t have to worry too much about finding an audience for her book on the intricacies of stock-car racing, The Physics of Nascar. But this is hardly just a story for race fans. It’s a crash course in chemistry, physics and more. In the first few chapters, she gets down to the molecular level–at some points literally–in describing the stock car chassis, diagrams how welding works, and even takes a few paragraphs to explain why the white paint on a car appears white to our eyes.

But it’s when she moves out of the shop and onto the track that the book really takes off, as she breaks down engines, brakes, tires, drag and lift; the dynamics of racing itself.

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For any vehicle—airplane or car—to fly, there needs to be some force pushing it up so that it can overcome gravity. Airplane wings are specifically designed to create just such a force. As a plane moves forward, the wings push air down, and because for every action there's an equal and opposite reaction, this action creates an upward force on the wing, called lift.

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