If I get this wrong, 50,000 people will hear it.

Summary by Krater

Tom Scott visits Worcester Cathedral to learn bell ringing from ringing master Darren and experienced ringers. He explains the mechanics of change ringing, how bells are hung and weighted, and the mathematics and physical coordination involved, before trying it himself.

From the video

Answers: How does church bell ringing work?

• Bell ringing mechanics
• Change ringing math
• Worcester Cathedral bells
• Bell rope handling and timing

What it concludes

• Church bell towers move slightly when bells are rung, but the movement is perfectly safe.
• Change ringing involves mathematically patterned sequences played across multiple bells by different ringers.
• Bell ringing requires precise timing and coordination rather than raw physical strength.
• Physical exercise like bell ringing helps slow down motor degeneration in Parkinson's disease patients.