copper

What is the difference between the pennies below? And why does the penny on the left look like an albino? Hint: It has to do with the historical significance of the year in which it was minted.

I lack the art gene. While other people can spend hours in a single room at the Met or MOMA, after five minutes I'm thinking about ways to light myself on fire. I just don't get art. 

Copper Ore via Shutterstock

Hospital-acquired infections have received much attention in recent years, and with good reason: they are a significant contr