Flywheel Energy Storage of a Wind Turbine (simulation)
A motor is used to simulate the wind turbine, and a variable frequency drive is used to simulate the wind velocities. System can be improved by minimising frictional forces.
Flybus - Kinetic Energy Recovery by Flywheel
Ricardo Kinergy flywheel technology coupled with a Torotrak CVT to provide mechanical energy storage.
A 21st century bike
Richard Quest tries out a bike with springs in its wheels - the Loopwheels. The bike goes on sale in the fall for $1800. For more CNN videos, visit our site at http://www.cnn.com/video/