Under UV light, tar from the Gulf of Mexico oil spill lights up orange-yellow on the beaches of Gulf Islands National Seashore (picture) while clean sand glows purple in a long-exposure picture.
Graduate student Kirby hopes that ultraviolet light can be used on beaches to guide oil-spill cleanup operations.
研究生Kirby希望紫外灯能用于指导沙滩上的油污清理工作。
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When it looks good, you move on to the next light and surface, ” Barowsky explains. “Make your set tight, and don’t allow ambient light to spill onto the piece and affect color temperature.”