Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

American industry relies on both internal and foreign sources for steel and aluminum. Canada is the top importer of both into ...

Learning about the aluminum production from countries around the world offers insight into the important industrial metal, ...

Transparent aluminum oxide (TAlOx), a real material despite its sci-fi name, is incredibly hard and resistant to scratches, ...