The “Disease” That Struck Medieval Church Organs

The “Disease” That Struck Medieval Church Organs

During long, cold winters in medieval Europe, church organs grew gray, sickly-looking circles that spread over their pipes. People back then believed that this was the work of the devil, but as it turns out, it’s just some pretty simple chemistry.

SciShow is supported by Go to to get 20% off of an annual Premium subscription.

Hosted by: Stefan Chin

SciShow has a spinoff podcast! It’s called SciShow Tangents. Check it out at
Support SciShow by becoming a patron on Patreon:
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:

Kevin Carpentier, Eric Jensen, Matt Curls, Sam Buck, Christopher R Boucher, Avi Yashchin, Adam Brainard, Greg, Alex Hackman, Sam Lutfi, D.A. Noe, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters
Looking for SciShow elsewhere on the internet?


Tin Pest: A Forgotten Issue in Pb-Free Assembly?

Click to access app135z5p22.pdf

Click to access MAT21.pdf

Image Sources:

You are watching The “Disease” That Struck Medieval Church Organs on Hot Stream

%d bloggers like this: