And on a full charge it can work for up to three months in total darkness.

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The researchers said this did not happen when the pregnancy was spent in total darkness.

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The start of the second-half was delayed by five minutes after a power cut plunged the ground into total darkness.

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These give the helicopter an awareness of its surroundings which is precise enough for it to land in total darkness.

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If you wander out into a gaggle of fellow humans in total darkness, chances are you're going to bump into one or two.

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Fully powered, the keyboard works for at least three months, even in total darkness (based on average use per day of eight hours).

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Those animals' depressive symptoms, at least, went away once the hamsters returned to a schedule that included eight full hours of total darkness per day.

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The spider species require total darkness, even at night, and the sealed vaults which had remained closed for years were the ideal dwelling for them.

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Shift workers woke early to find their street in total darkness.

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Even in total darkness, you can see where he is.

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Amadou and Mariam, a blind musical duo from Mali, will attempt to stage the world's first concert in total darkness, while comedian Johnny Vegas will present a new theatre show.

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And it requires near total darkness for optimal operation.

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No electricity and our rooms were in total darkness.

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In the Karlovac region, 75km south of Karlovac city and just outside the town of Rakovica, the Barac cave is a more confined affair, which becomes even more claustrophobic when the guides turn off their flashlights to let visitors experience total darkness.

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For one, you enter into near total, disorienting darkness, into the windowless hall of the solid structure.

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