Member of staff at satellite communications company Inmarsat point to a section of the screen showing the southern Indian Ocean to the west of Australia, at their headquarters in London March 25, 2014. Britain’s Inmarsat used a wave phenomenon discovered in the nineteenth century to analyse the seven pings its satellite picked up from Malaysia Airlines Flight MH370 to determine its final destination.The new findings led Malaysian Prime Minister Najib Razak to conclude that the Boeing 777, which disappeared more than two weeks ago, crashed thousands of miles away in the southern Indian Ocean, killing all 239 people on board. REUTERS/Andrew Winning (BRITAIN – Tags: TRANSPORT DISASTER SCIENCE TECHNOLOGY BUSINESS TELECOMS)