If you want a strong magnet, the obvious answer is to buy one. However, for a variety of reasons, you might want to combine several smaller magnets. There are a few ways to do this, but the Halbach ...

At some point, you've probably heard the stern warning: Never put magnets near your electronics! It's advice so ingrained in tech culture that it feels like a law of physics. But is it true? Was it ...

My PlayStation 2 has been having issues reading discs. After taking the damn thing apart, I discovered that the disc tends to slip during spin-up, which makes some pretty terrifying noises (but does ...