A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...

Most Americans express confidence in their ability to do various practical tasks, but they are much less confident in their ability to do other tasks that require more specialized knowledge.

If you’re familiar with using a compass (the tool that points to magnetic north, not the one that makes circles) the concept of holding the device level makes sense. It must be level for the needle to ...

iOS ships with a basic compass that you can use to find your basic heading when driving or hiking. It's not as robust as some third-party orienteering apps, but it will work in a pinch when these ...