<http://schema.org/url>
<http://cdnph.upi.com/ph/st/th/20911350433864/2012/i/13504334854945/v1.5/Flip-flop-of-Earths-magnetic-field-probed.jpg?lg=5>
<http://www.upi.com/Science_News/2012/10/16/Flip-flop-of-Earths-magnetic-field-probed/UPI-20911350433864/>