But if you don’t look in side 2 billion years later, it’s both U-235 and lead-207!
Happens every time
Submitted 1 month ago by graham1@lemmy.world to science_memes@mander.xyz
https://lemmy.world/pictrs/image/67fb85c2-8df2-4cd2-af53-68a05dda5dc9.png
Comments
FuglyDuck@lemmy.world 1 month ago
aeronmelon@lemmy.world 1 month ago
Schrödinger’s radioactive decay may or may not have killed his cat.
HappyFrog@lemmy.blahaj.zone 1 month ago
The lump would still have about 14% uranium still in it. (If my understanding of half-life is correct)
PieMePlenty@lemmy.world 1 month ago
Afaik its always going to have some parts of uranium right? 50% after one half life, 25% after two half lives and it will keep on halving practically forever (or till the last atom decays). In the end it comes down to when you consider it a negligible amount.
JayDee@lemmy.sdf.org 1 month ago
I mean, yes, that’s how it would work if there were an infinite number of atoms in the piece. There’s a finite amount, though, so eventually there will be a point when all the atoms have completely decayed.
All models are wrong, but some are useful.
FuglyDuck@lemmy.world 1 month ago
after a certain point, you’re going to get to where you have to split an atom or two.
fairly sure that’d be far less exciting than normal.
HappyFrog@lemmy.blahaj.zone 1 month ago
Yeah, thats what I was using to get 14%.
2billion years is about 2.8 halflives, so I calculated (1/2)^2.8 ~ 0.14.
Hupf@feddit.org 1 month ago
kehet@sopuli.xyz 1 month ago
Damn greedy corporations and their shrinkflation
morrowind@lemmy.ml 1 month ago
Damn bro, how many times has this happened to you
InternetCitizen2@lemmy.world 1 month ago
Enough to post the meme
Masterkraft0r@discuss.tchncs.de 1 month ago
If you put a cat into the box with the uranium and wait the same amount of time, that cat will be dead. this is true. no questions. thank you.
Brickhead92@lemmy.world 1 month ago
Unless the uranium in the box caused a mutation in the cat giving it eternal life.
geomela@lemmy.world 1 month ago
So is Lead-207 special lead, or is it just, like, lead?
FreeBeard@slrpnk.net 1 month ago
The normal lead we know but still special. Is the last stable element in the PSE and there is the theory that it’s actually radioactive (unstable) but the decay is so slow that we probably never see a single atom of it decaying.
LovableSidekick@lemmy.world 1 month ago
Schrödinger’s Nuclides.
Lemmist@lemm.ee 1 month ago
Like in inflation: now you have enough money to buy a bottle of vodka, in 10 years these money can barely buy you a matchbox.
LouNeko@lemmy.world 1 month ago
>Puts Iron-56 in a box.
>checks at the heat death if the universe
>still Iron-56
>mfw box also Iron-56