this post was submitted on 15 May 2026
79 points (100.0% liked)
Mildly Interesting
26512 readers
414 users here now
This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
Just post some stuff and don't spam.
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Doing that can reveal a whole bunch of interesting patterns. I was repairing something on a circuit board once and was trying to figure out the wiring. Trying to get more light, I shone my phone's flashlight at it. At some point I suddenly realized that the circuit board lets a bit of light through. I realized that, at least for some of the board, I could shine a flashlight onto the other side and see pretty exactly how the circuit was laid out. It also looked really, really cool.