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 ...

The Compass app comes built-in on every new iPhone, and it's helpful when you want to make sure you're going in the right direction. Here's how to launch the app, calibrate it, and use it to find your ...

It also shows that this compass information is accurate enough to allow an insect to estimate the distance and direction back to its home, even after moving a long distance away in a random path over ...