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The huge sun mirrors ("Solspeilet") that is set up on the hillside above Rjukan, to reflect sunlight down on the town square, is seen during its officially opening in Rjukan, Norway. Sun-starved residents of a remote Norwegian village unveiled an ingenious mirror system to bring natural light to their mountain valley home, enveloped in darkness for half of the year.

۹ The huge sun mirrors ("Solspeilet") that is set up on the hillside above Rjukan, to reflect sunlight down on the town square, is seen during its officially opening in Rjukan, Norway. Sun-starved residents of a remote Norwegian village unveiled an ingenious mirror system to bring natural light to their mountain valley home, enveloped in darkness for half of the year.

A protester against the practices of U.S. security agenices sits in the audience as Director of National Intelligence James Clapper, Deputy Attorney General James Cole and General Keith Alexander, director of the National Security Agency (not picture) testify at a House Intelligence Committee hearing on Capitol Hill in Washington, D.C., Oct. 29, 2013.

۱۰ A protester against the practices of U.S. security agenices sits in the audience as Director of National Intelligence James Clapper, Deputy Attorney General James Cole and General Keith Alexander, director of the National Security Agency (not picture) testify at a House Intelligence Committee hearing on Capitol Hill in Washington, D.C., Oct. 29, 2013.

۱۱ Two men row a boat past a partially dried-up riverbed on a section of the Yangtze River in Jiujiang, Jiangxi province, China.

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