What did you learn this week? We learned …
… you can print your own portable universe—for free!
… how to navigate the languages of New York. Editor’s pick of the week!
… why earworm songs are earworm songs.
… all about the archivists, folklorists, and curators fighting to save South Sudan.
… why London didn’t quite redesign after the great fire, and why that’s a good thing.
… Mount St. Helens has a stone cold heart.
… millimeters-thick foam can obliterate bullets.
… why we still need cartographers.
… a bloody stake stands as a monument to Ivan the Terrible.