Red is the new GREEN Researchers working with cyanobacteria may have extracted a new variety of chlorophyll that can use more near-infrared light than is typical for oxygenic photosynthetic organisms.

红色是一种新的绿色研究人员可能从蓝细菌中提取出一种新的叶绿素分子，这种新叶绿素分子比典型产氧光合生物中的叶绿素分子更能利用偏近红外波段的光。

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Combining red, green and blue LEDs to produce white light has the potential to be more efficient, and the colour of the light could be tuned depending on mood or taste.

结合红绿蓝led一起生成白光有能被更有效利用的潜在可能，并且光的颜色还可以依据心情或者口味来调配。

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With the use of blue light, the fluorescein defect of a corneal abrasion may be more pronounced and will appear yellow-green (shown).

使用钴蓝光进行观察，角膜擦伤的荧光素染色缺损处会变得更加明显并呈现出黄-绿色（如图所示）。

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It added that allowing smoking on set could "signal a green light for much more widespread use of smoking in productions".

BBC: Cigarette

Even more significantly, Ankara gave a green light to Iranian gas exports to Europe through the Nabucco gas pipeline which runs from Turkey to Austria.

CENTERFORSECURITYPOLICY: One civilization clashing

As congestion builds on one street relative to another, it adjusts traffic-light cycles to give more green time to the congested lanes.

FORBES: Photograph: Tim Rue