February is Black History Month and it pays tribute to the achievements of African Americans throughout U.S. history. It has been celebrated since 1976, but actually started back in 1926 with ...

As many people sit at the wheel of their car, they are certain they know what color is. It's the red traffic light in front ...

green, blue, indigo, and violet. 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,” ...