Here's the latest addition to the Loom's science tattoo collection: from a food scientist, the molecule capsaicin, which makes chiles spicy. To see all the new tattoos, check out my Flickr set. And keep them coming--either in the comment thread here, or emailed directly to me. If you crave more science tattoos--not just on the body, but of the body, check out an awesome collection of anatomical tattoos. (Thanks to Steve)