Dan Joling of Anchorage was set to photograph the full moon rising over the Port of Anchorage on Jan. 6. His research told him the moon would pop over the horizon at a certain number of degrees from ...

Add Yahoo as a preferred source to see more of our stories on Google. How does a magnetic compass work: compass. How does a magnetic compass work? Well, it’s all down to basic physics and human ...

If you're annoyed that your pocket compass doesn't point exactly to true north, then head for Greenwich, England, where magnetic north and true north are synching over the next two weeks for the first ...

And you may want to pay extra for a compass with a declination correction switch. The difference between true north and magnetic north is always changing, and the gap is known as declination. The ...

This material is taken from Chapter 6 - Wilderness Travel from The Backpackers Field Manual by Rick Curtis. For more details on this exciting book check out The Backpacker's Field Manual Page. This ...

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For the first time in 360 years, compass needles at the Royal Observatory Greenwich in England will point toward true North. But why weren’t they pointing there in the first place? Earth has two North ...