ONR navigation and tracking mobile app extended for sea

Deployed Sailors and Marines on board aircraft carriers will be able to use smart phones to navigate, locate and track anyone on the ship in real time, Office of Naval Research (ONR) officials announced Sept. 15.

Vikings could have steered by polarized light

(PhysOrg.com) -- The Vikings are said to have been able to navigate with the aid of "sunstones" that allowed them to see the sun on cloudy or foggy days. Now scientists in Hungary and Sweden say the sunstones could have been ...

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