Have you ever wondered what made car manufacturers decide to go from dynamos to alternators for generating electricity? It's a mix of reliability and cost.

We all expect our car to start every time we turn the key. And it usually will, as long as there’s enough electricity stored in the battery to do the job. That’s especially important when the ...

Windmills aren't to be tilted at; they can drive drills, polish glass, saw wood and pound metal -- not to mention generate electricity. So, should you find yourself broken down in the middle of ...