Fascinating Friday Facts

Here's some links I thought I'd share which struck me as interesting:

Wet Plate Photography Makes Tattoos Disappear (PetaPixel) — the photographic technology in the 1800s used to photographic the indigenous Māori people of New Zealand didn't show their facial tattoos.
Archive shows medieval nun faked her own death to escape convent (The Guardian) — entertaining, but also pretty tragic if you think about the number of young women 'sent away' to convents in the past.
Why Do People With Depression Like Listening To Sad Music? (The British Psychological Society) — no definitive answers, but seems to back up the commonsense assumption that high-energy music when you're feeling down is just annoying.
We studied what 10,000 people love online. The results would make Freud blush (Fast Company) — dark nudges, disaster porn, and harder/faster/weirder algorithms.
The Case for Doing Nothing (The New York Times) — reminiscent of Jocelyn K. Glei's question: "who are you without the doing?"