Exposure to UVB rays found in natural and artificial sunlight.

来自自然和人造阳光中的UV B射线照射。

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Lighting has been shown to have effects on mood in the physical world (both sunlight and artificial light; see lots of info on the subject).

已有研究表明，照明可以影响情绪(日光和人造光线)。

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Artificial illumination on a Kuiper Belt Object would stand out because it would vary less than reflected sunlight does when the world moved toward or away from the sun.

柯伊伯带天体上的人工照明之所以会显得特别突出是因为不管它转向或者转离太阳，其所反射的太阳光都不会变化很大。

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Colors can change shade, or metamerize, under different light sources, so when Harfouch hits on a perfect match he has to be sure it looks the same under sunlight as it does under artificial, supermarket light.

FORBES: Jelly Beans: Which Color Is Most Popular At Easter? Why We Love Colored Foods

Panasonic's artificial photosysnthesis system has a simple structure with highly efficient CO2 conversion, which can utilize direct sunlight or focused light.

ENGADGET: Panasonic Photosynthesis System converts carbon dioxide to organic material with plant-like efficiency