Skeptophilia

Picture this: you're walking down a road on a dark, moonless night.  In the distance, you see a light.  How far away is the light? The p...

When I was a kid, I always enjoyed going on walks with my dad.  My dad wasn't very well educated -- barely finished high school -- but w...

In my Critical Thinking classes, I did a unit on statistics and data, and how you tell if a measurement is worth paying attention to.  One o...

If I had to pick the most paradigm-changing discovery of the twentieth century, a strong contender would be the discovery of red shift by a...