How does a magnetic compass work? Well, it’s all down to basic physics and human ingenuity. The key component of a standard baseplate compass is its magnetized needle, which is allowed to spin freely ...

A magnet (It can be a flat refrigerator magnet or a more powerful magnet, such as a rare earth magnet—the most common type is made of neodymium—which can be purchased at many hardware stores. A ...

Does it matter if you put a video camera near your magnetic compass that is used for navigation? The theoretical answer is "yes." But the practical answer? "Probably not." Now for a detailed ...