TIL: About Foxfire a Bioluminescent Fungus ( en.m.wikipedia.org )
I first heard about it as being used to mark gauges on a 1770s submersible so the operator could read them in the dark....
![](https://kbin.chat/media/cache/resolve/entry_thumb/b9/b6/b9b6d8c687e238a40c7a543c9b05f814bf32258a617bbfb891f7bc927ab284f3.jpg)
I first heard about it as being used to mark gauges on a 1770s submersible so the operator could read them in the dark....