Virtually everything you will ever encounter reflects a little bit of light, except for one material that seems to swallow ...

And that grows into what's called a forest. Narrator: That nanotube forest is the key to creating this black color. When particles of light, called photons, enter it, nearly all of them get ...

A red object looks red because it reflects the red wavelength of light, and the same is true for all other colors. There is no such thing as “black light wavelength,” so why do black T-shirts, black ...