As wind blows it generates kinetic energy, which is energy from movement. This turns the blades on a turbine, which then causes a shaft (drive shaft) within the system to rotate (view diagram below).

When looking at a surf forecast, there are several key factors to take into consideration, including swell direction, swell height, tide times, wind speed and wind direction. If you can understand ...

In many parts of the country, spring is the time of the year when the wind does what it does best. It blows hard for quite a while, dies down for a short time and then blows harder than it did before.