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).

You might not know it from the headlines, but there is some good news about the global fight against climate change. A decade ago, the cheapest way to meet growing demand for electricity was to build ...

We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you. But what if, on top of that, we ...