Today I learned on Nostr: TIL that until recently, steel used for scientific and medical purposes had to be ...
TIL that until recently, steel used for scientific and medical purposes had to be sourced from sunken battleships as any steel produced after 1945 was contaminated with radiation.
https://en.wikipedia.org/wiki/Low-background_steel
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1e3spph/til_that_until_recently_steel_used_for_scientific/
https://en.wikipedia.org/wiki/Low-background_steel
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1e3spph/til_that_until_recently_steel_used_for_scientific/
![](https://noc.social/system/media_attachments/files/112/790/357/733/811/465/original/24413bbfa331b2f9.jpg)