For 30 years, the San Antonio Central Library has stood out against the city skyline, cloaked in a distinct shade of red — ...

You'll notice that those colors are backward, by our current understanding. Nyhan is being figurative we can assume, recognizing the standard red-blue split if not the significance of the colors.

With a good antibiotic dose, there is little color change in the paper strip ... But in a falsified or weakened antibiotic, the paper goes red, because the enzyme instead reacts with the nitrocefin.

hard for color photocopiers to accurately match. Red and blue fibers have been a longtime ingredient of U.S. currency paper. Special features like these fibers are embedded in currency paper to ...

If different red flowers made similarly colored bands around the same height on the paper towel strip as one another, then they likely have the same pigment. If the bands are different colors and ...

The procession of cardinals, bishops and clergymen following the litter through St. Peter's Square was a flurry of color, raising the question of what all these shades of red, gold and pink mean.

As the last Thanksgiving leftover is consumed and the calendar flips to December, the unmistakable red-and-green flood of the Christmas season comes into view. The two colors fill malls and living ...