Black-painted surfaces that receive the sun's heat become hotter than surfaces of any other color.
VOA: special.2009.04.20
I know table salt is white, but that is because you have power and you have multiple surfaces scattering, but a large crystal of sodium chloride is clear and colorless.
我知道食用盐是白色的,但这是因为你让它成了粉末,因为有了多个散射面,但是一个大的氯化钠晶体,是无色透明的。
One such material is asphalt, a substance often placed on top of buildings and used to cover road surfaces.
VOA: special.2010.03.02
Studies have discovered evidence of harmful bacteria in toilets,on surfaces where food is prepared, even on home telephones.
VOA: special.2009.10.13
Or when babies put their mouth on painted surfaces or swallow pieces of paint.
VOA: special.2009.08.31
Unlike kilims, these "pile" carpets are not flat, they are deep and soft because their surfaces are covered with the ends of thousands of pieces of yarn.
VOA: special.2009.11.04
They compared the effects of black surfaces on rooftops with white roofs.
VOA: special.2010.03.02
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