WiFi is one of those technologies that actually bring people closer. It is the logo that puts a smile on a sullen face if you’re outdoors, because all you want in your life is free internet. But how does it work? And more importantly, how can you optimise it at your home? We are going to talk about just that in the fourth episode of Elemental, our series in which we talk about the little things in tech that make a much bigger impact on the real world. Remember, new videos come out every Sunday at 1 pm.