Aerodynamic Forces

The Flap over Roof Flaps

Why Roof Flaps? Roof flaps (the invention of which I detail in my book The Physics of NASCAR) help keep cars on the ground.  This is necessary because of Bernoulli’s law, which says basically that: Faster-moving […]

Aerodynamic Forces

Sprint Car Safety

NASCAR fans are used to having our drivers walk away from spectacular crashes.  Unfortunately, we are reminded all too often — like last night — that racing, regardless of all the technical improvements we’ve made, […]

Explosions

Why You Don’t Mess With Fuel Cell Foam

We’d been hearing rumors of penalties stemming from Kansas and everyone expected them to be announced Tuesday. Since penalties usually have some scientific component, I was sort of hoping for some new material. Tuesday came and went. Nothing. Wednesday, all heck broke loose as penalties were announced for the No 20 JGR car (engine issues) and the No 98 ThorSport truck.
The more interesting — and less discussed — penalty is the ThorSport/Johnny Sauter one. (It was a tough week for Wisconsin drivers). The team was docked 25 points, which is pretty huge for the Truck Series and the crew chief fined $10,000. (I realize that seems small when compared to the Sprint Cup Series penalties, but the Truck Series has correspondingly lower purses and salaries.) […]

Bristol Motor Speedway

Why Turning is Hard

Why Turning Fast is Hard If Isaac Newton had been a racing fan (which I’m sure Sir Isaac would have been if had cars been invented in the 1600’s), he might have stated one of […]