Daniel Freedman does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

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 compounds ...

There are several factors that can impact color, including the type of resin used, additives, texture and shape. Visual perception is another factor to consider. When plastics companies tackle these ...

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 compounds ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) One feature of compounds made with transition metals is their intense color. There are ...