Scientists in rhode island are developing underwater brogots to monitor climate change. The sound output from these boys is about a hundred and 80 decibels. That's not even as loud as some ship engines, writes John Defterios.
Demonstrations that eventually ousted the prime minister have cost lives, but the protest mood is not fading: many want every member of the storied Rajapaksa family out of government. We examine an effort to develop undersea GPS and learn why a watery sat-nav would be so useful. And why 1972 was such a formative year for music in Brazil.
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