Why Do High-End Car Wheels Appear to Rotate Backwards?
1 Answers
The phenomenon of wheels appearing to rotate backwards is caused by the persistence of vision in the human eye. When observing objects, images remain on the retina for a brief period, approximately between 0.05 to 0.08 seconds, creating the illusion of reverse wheel rotation. In reality, the wheels do not actually rotate backwards. Below is an introduction to wheel construction: 1. Rim: The part of the wheel that fits and supports the tire. 2. Spokes: The part of the wheel that connects to the axle hub and supports the rim. 3. Offset: The distance between the centerline of the rim and the mounting surface of the spokes. It can be positive offset, zero offset, or negative offset. 4. Flange: The part of the rim that maintains and supports the tire's direction. 5. Bead seat: Also known as the mounting surface, it contacts the tire bead and supports the radial direction of the tire. 6. Well: A depression of certain depth and width on the rim to facilitate tire installation and removal. 7. Valve hole: The hole for installing the tire valve.