A friend sent me this, knowing it was exactly up my alley (words and gains)–the origins of the word dumbbell as it related to bell ringers:
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And that got me looking up videos of bell ringers to see the physical action, and before I knew it I was on the Wikipedia page for change ringing, dusting off my music theory.
It’s a fun rabbit hole if you want to go down it, too–so many tidbits, like “full circle ringing” and “quarter peals” and even a Dorothy Sayers novel!