NASCAR corners are divided into three parts because the car's grip changes in different parts of a turn.
Science of Speed
You can't win NASCAR races without getting the science right. NSF has partnered with NASCAR in the production of the "Science of Speed", a fast-paced 12-part video series that explains the scientific principles that are so essential to the NASCAR experience
Decreasing the force of impact by increasing the amount of collision time
A turn on the racetrack can prevent a racecar driver from turning his head at all
Efficient engines give NASCAR racers more speed
A perfectly balanced car keeps NASCAR drivers on the edge of racing
Firesuits protect NASCAR drivers from extreme tempertures
Sometimes friction can help or hurt NASCAR racing teams
The phyics of NASCAR tires keep driving teams in touch with the track
Waves of sound let NASCAR fans feel and hear the power of race car engines
Grip, the force that binds all NASCAR drivers
Car safety protects NASCAR drivers from the extreme forces of a car crash
Getting out of the "drag" and into the "draft"