Traditionally, blue is associated with masculinity and pink is associated with femininity. Blue may represent boyhood or be ...

It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something called the Rayleigh effect, or Rayleigh scattering. But that same ...

The red stripe in the center is the widest, symbolizing the blood shed for freedom. The blue represents the sky, opportunities and perseverance, while the white represents peace and wisdom.

The horizontal blue line represents Lake Michigan and separates the sky from the land. The central circle represents the view of Abraham Lincoln's hat from above. This design was submitted by a ...