[Image found here. Every google hit for fish ladder Switzerland Pichoux Gorge has the exact same comment so I won’t repost it here.]
Swiss Fish Ladder
[Image found here. Every google hit for fish ladder Switzerland Pichoux Gorge has the exact same comment so I won’t repost it here.]
Tacky Raccoons 
Pretty cool. That image jogged something loose in my brain and it took me a couple of minutes to figure out why. That fish ladder reminds me of a Tesla Valve.
https://hackaday.com/2019/12/13/burning-propane-beautifully-illustrates-how-a-tesla-valve-works/
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Wow. Never heard of a Tesla Valve, and the vid is very cool. Help yourself to the beer in the fridge.
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