But how can one element – chromium – create the red color of a ruby and green color of an emerald? Rubies and emeralds have the colors they do because, like many substances, they absorb some ...

The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But have you ever wondered how they get those colors? One feature of ...

After you've found the perfect sage green paint color, though, you need to choose the right colors to use in the rest of the room. Classic metal shades like gold and silver, and specific tones like ...

In most cases, green pee is not a cause for concern. While urine is usually a light yellow color, certain substances can filter through the kidneys and cause your pee to turn green—but usually for ...

2. Food Dyes Food dyes can generally change the color of your stool. It's possible to have green stool after consuming highly pigmented mint ice cream or frosted cookies. One case report detailed ...

While it's mostly just a physical trait, eye color can sometimes signal that a baby has a health issue. The combination of pigments and how widely they're spread and absorbed by the stroma determine ...