The Science of Cycling
http://www.exploratorium.edu/cycling/index.html
The Science of Cycling is the second in a series of three planned sports science resources from the Exploratorium. This site is divided into six main sections and is filled with audio and video clips, interactive javascripts, and lots of images. In addition to the topics listed below, you’ll also find information on the history and unique culture of cycling.
- The Wheel. Learn about the history and development of the tire, early bicycles, spokes, and tension. Discover why road bikes have thin tires, while mountain bikes have fat tires.
- Drives & Gears. Find out what a gear ratio and how gears help make the bicycle so efficient.
- Frames & Materials. Discover the best materials for frames and the best designs.
- Braking & Steering. Find out how you stop and steer a bicycle and what forces keep the bicycle from falling over.
- Aerodynamics. Get the scoop on how drafting helps a cyclist and just what exactly skin friction is.
- Human Power. Read about how your muscles work and why the bicycle the most efficient way to travel.



