This Company Uses Earth's Magnetic Field To See Inside Buildings

In some ways, it's an ominous pitch. By measuring the "magnetic fingerprint" of any building in the world, the Finnish company IndoorAtlas can conjure up a startlingly precise indoor map of any building. It's technology that sci-fi has dreamt of for decades. But instead of surveillance, it's being used for shopping. » 5/20/14 5:20pm 5/20/14 5:20pm

Why We Renumber Runways When the Earth's Magnetic Field Shifts

The FAA can make the rules about air travel (god no inflight calls, please), but it's still beholden to the whims of earth's shifting magnetic field. Runways are named after their compass orientations to help pilots navigate. A changing magnetic field, however, means they now have to be renumbered. » 12/13/13 6:02pm 12/13/13 6:02pm