Please note our museum hours while we undergo renovations.
Museum HoursWed–Fri: 12:30pm–5pm | Sat: 10am–5pm

The Conversation: Deciphering the Philosophers’ Stone

Institute fellows Megan Piorko and Sarah Lang help crack a 400-year-old alchemical cipher.

October 14, 2021

The work of Science History Institute fellows Megan Piorko and Sarah Lang is featured in an article in The Conversation, a nonprofit news network that publishes stories written by academic experts and researchers. The article talks about how Piorko (a second-year Allington Postdoctoral Fellow) and Lang (a short-term Herdegen Fellow) contributed to the decryption of a 400-year-old cipher written by alchemists John Dee and his son, Arthur Dee. As suspected, the ciphertext contained an alchemical recipe for the fabled philosophers’ stone, an elixir that is supposed to prolong the owner’s life and grant the ability to produce gold from base metals.

Read more on theconversation.com >>

Alchemical emblem in Sloane MS 1876 f1v. © British Library Board, Author provided (no reuse).

More News

award medals and plaque
news

Winners of 2025 Science History Institute Awards Announced

Othmer Gold Medal, Bolte Award, and AIC Gold Medal to be presented on May 7 in Philadelphia.

Rose Chen headshot
news

Science History Institute Mourns Death of Board Committee Member Rose Chen

The multiculturalism advocate passed away on January 9, 2025, at the age of 75.

Black and white photo of girl with a cotton plant
news

‘Distillations’ Article on Arsenic Featured on Top 40 Favorite History Writing List

Bunk, the University of Richmond’s online history project, names Jayson Porter’s recent piece a best-of 2024.

    Republish

    Copy the above HTML to republish this content. We have formatted the material to follow our guidelines, which include our credit requirements. Please review our full list of guidelines for more information. By republishing this content, you agree to our republication requirements.