It also turns out that turtles spend 90% of their time within 40 metres of the surface, so setting hooks deeper than this would reduce the chance of catching them accidentally.

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Some Microsoft allies argue that Surface could help spur innovation, by setting expectations for what new tablets computers should be.

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Over in the U.S., at least on the surface, regulators appear to be in agreement on setting minimum standards.

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As well as this reduction in area, scientists believe that, hidden beneath the surface, the ice is growing ever thinner, setting up the Arctic for another sudden, catastrophic collapse.

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With the sun setting, the sky is etched with a calligraphy of pink clouds, their reflection a soft wash on the river surface.

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In fact, any water on the touchscreen surface will interact with the device -- frustrating if you want to use the device in a watery setting, but the handset will at least survive the encounter.

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