Can anyone guess what this small hole filled with water, in the center of a fort built in the 1600s on an island just off the coast of Colombia was used for?

Cohost of /gmfarcaster, a live stream Farcaster news show.  Engineer. Mom x 3.

Clearly used to tell time.  Humidity?  Barometric pressure?  Moon’s gravitational pull?

Startup artist seeking inspiration.  Champion of /bcard

Here’s the answer and here’s 500 $degen for taking a guess 🙏 

https://warpcast.com/adrienne/0xf90fc5b6

Ahahaha so it’s one of the others then ;)

Sorry, it is not a time telling device :)