Thought you guys might be interested in this article. Hopefully I inserted the link correctly, this is my first post.
http://www.ft.com/cms/s/0/4cac5a24-db68-11e3-94ad-00144feabdc0.html#ixzz31oo5OEED
Some interesting quotes from the article:
http://www.ft.com/cms/s/0/4cac5a24-db68-11e3-94ad-00144feabdc0.html#ixzz31oo5OEED
Some interesting quotes from the article:
Scientists at Porton Down and the National Physical Laboratory believe they are three to five years away from developing a “quantum compass” that would be able to locate itself based on the subatomic effects of the earth’s magnetic field.
Without regular fixes, even the most sophisticated navigational systems can produce inaccuracies that amount to as much as 1km a day.