189
Shining a light behind this metal credit card.
(thelemmy.club)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 15 May 2026
189 points (99.0% liked)
Mildly Interesting
27588 readers
783 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 3 years ago
MODERATORS
I recently took an x-ray of a card, might be interesting to some of you as well:
Ooh, very cool!
Are the two different pictures different wavelengths, or do you just have two seperate sensors? (I have no idea how this works, just a highschool level understanding of x-rays.)