Ayliean MacDonald joins us to look at some mystery markings in the vaults at the Royal Society... More links below ↓↓↓ Ayliean is an artist, maths teacher and science communicator. Find out more about her here: https://linktr.ee/Ayliean Objectivity on Patreon: https://www.patreon.com/objectivity More videos with Ayliean on Numberphile... Hitomezashi Stich Patterns: https://www.youtube.com/watch?v=JbfhzlMk2eY Key to the Tower of Hanoi: https://www.youtube.com/watch?v=PGuRmqpr6Oo Subscribe to Objectivity: http://bit.ly/Objectivity_Sub Films by James Hennessy and Brady Haran Royal Society website: http://bit.ly/Royal_Society The Royal Society's own YouTube channel: null Facebook: https://www.facebook.com/ObjectivityVideos Twitter: https://twitter.com/objectivity_vid Patron thank you page: http://www.bradyharanblog.com/objectivity-patrons Objectivity T-Shirts: null