Strong competitors are generally thought to bring out the best in everyone, but what if the competition is so strong it makes the top prize feel out of reach? Can strong competition actually undermine a reward structure? A new study by Jennifer Brown of B

This is Open Mind Commons, a site where you can help an artificial intelligence learn about the world we live in.

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.