Wind power could then provide lights to keep algae growing underwater and during the nighttime hours — a fitting vision for the sustainable future of spaceship Earth.

风力发电厂提供保证藻类在水下及夜间正常生长的光照。 这项可行的未来计划是对太空船地球美好未来的完美设想。

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Humans are pretty good at seeing reds, blues, and yellows, but for animals ranging from bees to reindeer, ultraviolet lights up their vision.

人眼善于分辨红色，蓝色和黄色，但是对于蜜蜂和驯鹿之类的动物来说，紫外线却能让他们看得更清楚。

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It was a moonless evening and the helicopters' pilots wearing night-vision goggles flew without lights over mountains that straddle the border with Pakistan.

这是个没有月亮的晚上，戴着夜视镜的直升机飞行员驾驶着没有开灯的飞机在坐落在巴基斯坦边境的群山上空飞行。

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Night vision goggles, GPS receivers, Sure Fire lights and radios are among the dozen or so electronic gadgets that hang off an infantry grunt like ornaments.

FORBES: Smart Guns Key to Next-Gen Soldier Systems

Headlights or room lights could be spectrally tuned to match the innate differences in day, night and peripheral vision, providing more comfort and safety.

FORBES: The LED Illumination Revolution

However, the RAIB also said Mr MacKay may not have seen, or had misinterpreted, the warning lights at the level crossing and appeared not to have been wearing glasses to improve his distance vision.

BBC: Angus and Margaret MacKay