2 个月
The Manual on MSNHow to use a compass for navigation when GPS failsToday, compasses are still considered to be a top 10 safety item by the National Park Service, but it’s a shame how many ...
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 ...
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