What does red look like to you? Philosophers have argued about this for centuries. Maybe my red is your green. Maybe we live ...

Have you ever wondered why fast food restaurants are plastered with red and yellow? Or why hospitals favor calming blues and greens? The truth is, colors are ...

Stressed out by hot-button issues? Politicized science? Chemistry Lessons From Hell? Relax. Here are some quirky chemistry tricks that require little brain power. I've even explained how they work.

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.