Uncovering The Formula For a Mysterious, Medieval Blue Ink

For thousands and thousands of years a purple-blue ink known as folium was used to color all kinds of books, cheese rinds and more, but its formula was lost until a team of researchers recently deciphered the recipe through three ancient texts. It’s long been confirmed that the dye comes from the fruit of chrozophora tinctoria, but this isn’t a complete assessment. By poring over the …

This Brainless Blob Can Solve Puzzles, Sleep and More

Officially on display at the Paris Zoo from 19 October, this unicellular organism will be the first-ever “brainless blob” to be showcased in a zoo. Despite not having a brain, the mass can complete a bevy of tasks from improvising music to maneuvering through a maze, remembering which food it likes best, and crossing a bridge covered in a hazardous chemical. While it’s new for …