How Batteries Work

Batteries are essential in our everyday lives. But their prevalence doesn't necessarily mean that it's easy to understand how they work. In this video, the engineering guy Bill Hammack takes a look at perhaps the most basic battery of all — the lead-acid cell — in order to explain the fundamental science behind every single battery you've ever used. Read More >>

How a Microwave Oven Actually Works

We all have a little box in our kitchen that heats food up in minutes. But how the hell does it do that? Witchcraft? Not quite. Actually, microwaves cause water molecules in your food to move back and forth rapidly, and the resulting friction causes it to heat up. Read More >>


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