In social choice theory, Arrow’s impossibility theorem, or Arrow’s paradox, demonstrates that no voting system can convert the ranked preferences of individuals into a community-wide ranking while also meeting a certain set of reasonable criteria with

According to Wikipedia there are an estimated 10.5 million American men who are red green color blind. I am one of them. I discovered this many years ago and rarely think about it as to me it is normal. However, I have discovered that those around me are endlessly fascinated with it—especially designers. So, to you I provide this public service message on color blindness.

Along with the overt war on global terrorism, the Bush administration has engaged in a covert war on science.