Chapter 1
The ollie and the laws of motion
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Chapter 2
Energy and momentum on vert ramps
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Chapter 3
Street geometry and balance
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Chapter 4
The materials science of skateboards
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YOUR GOAL
Master of The physics of skateboarding
Ch 4 · The materials science of skateboards
nic Polyurethane wheels offer the perfect balance of shock absorption, grip, and durability.
BETA
nic Swipe to position the skater's feet to master the forces behind a perfect kickflip.
Fun Fact
Wheel evolution: Before polyurethane wheels were invented in 1973, skateboard wheels were made of clay or metal.
Glossary
polyurethane (noun)
A synthetic resin in which polymer units are linked by urethane groups, often used in tough, flexible plastics. In 1972, Frank Nasworthy introduced polyurethane wheels, revolutionizing the sport by dramatically improving traction and ride smoothness.
A synthetic resin in which polymer units are linked by urethane groups, often used in tough, flexible plastics. In 1972, Frank Nasworthy introduced polyurethane wheels, revolutionizing the sport by dramatically improving traction and ride smoothness.
Quiz
What type of wood is most commonly used for professional skateboard decks due to its elasticity?
Quiz
What scale is commonly used to rate the tolerance and precision of skateboard bearings?
Quiz
What percentage of kinetic energy does a high-rebound polyurethane wheel return to maintain speed?
Quiz
Which extremely hard mineral is crushed and coated onto skateboard grip tape to create friction?