@zilog Outstanding!! I had no idea that miners planned ahead to save their canary in the event of a carbon monoxide leak. That's definitely the neatest thing I've learned so far this year.

I did a quick internet search and found another example from the UK Museum of Science and Industry, with a museum curator's description:
https://museumcrush.org/this-device-was-used-to-resuscitate-canaries-in-coal-mines/
#mining #CanaryInACoalMine #canary #CanaryResuscitator