151
you are viewing a single comment's thread
view the rest of the comments
[-] hector@lemmy.today 5 points 1 day ago

Fun fact the best invisible ink has traditionally been semen. British intelligence switched to other stuff after their tabloids started making fun of them for it at one point, 20th century sometime idk. Lemon juice sort of works too, put a letter on a radiator and the invisible ink becomes visible.

[-] brokenwing@discuss.tchncs.de 2 points 19 hours ago

I would like to know how they found it out in the first place

[-] fartographer@lemmy.world 1 points 19 hours ago

Teens trying to burn their overused socks, which briefly revealed phantom hieroglyphics

[-] ServantOfRa 2 points 22 hours ago

Genetically signed correspondence, neat!

this post was submitted on 25 Feb 2026
151 points (100.0% liked)

Not The Onion

20580 readers
958 users here now

Welcome

We're not The Onion! Not affiliated with them in any way! Not operated by them in any way! All the news here is real!

The Rules

Posts must be:

  1. Links to news stories from...
  2. ...credible sources, with...
  3. ...their original headlines, that...
  4. ...would make people who see the headline think, “That has got to be a story from The Onion, America’s Finest News Source.”

Please also avoid duplicates.

Comments and post content must abide by the server rules for Lemmy.world and generally abstain from trollish, bigoted, or otherwise disruptive behavior that makes this community less fun for everyone.

And that’s basically it!

founded 2 years ago
MODERATORS