If you’re new to the Loom, you may not be aware that I have a thing for science tattoos. It’s been exactly a year since I noticed a tattoo on the shoulder of a friend who’s a geneticist at Columbia. The tattoo was DNA, and it spelled his wife’s initials in the genetic code. So I wondered aloud if there were other scientists who had inked themselves with science, and the answer was a shockingly loud yes. In fact, I was soon inundated with so many pictures of tattoos (and enlightening stories behind them) that I had to separate them from my old blog to keep them organized. The tattoos have become fodder for stories in places like