How does a plug-in hybrid work? A hybrid car is like two cars in one: it has a conventional gasoline (petrol) engine for fast freeway driving and an electric motor for more economic, pollution-free travel (or idling). In different designs, the wheels are driven by the engine, the mot...
How does an electrolyzer work? Here's how a very simple electrolyzer makes hydrogen gas from water: A battery connects the positive terminal to the negative terminal through an electrolyte. In a simple laboratory experiment, the electrolyte could be pure water. In a real electrolyzer, performance...
What's happening here is a neat trick called wireless (induction) charging, and it's the power behind everything from rechargeable toothbrushes and phone charging mats to the latest wireless recharging bays for electric cars. We're about to take a closer look at how it works, but if you ...