But if you don’t look in side 2 billion years later, it’s both U-235 and lead-207!
Happens every time
Submitted 2 months 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 2 months ago
aeronmelon@lemmy.world 2 months ago
Schrödinger’s radioactive decay may or may not have killed his cat.
HappyFrog@lemmy.blahaj.zone 2 months ago
The lump would still have about 14% uranium still in it. (If my understanding of half-life is correct)
PieMePlenty@lemmy.world 2 months 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 2 months 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 2 months 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 2 months 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 2 months ago
kehet@sopuli.xyz 2 months ago
Damn greedy corporations and their shrinkflation
morrowind@lemmy.ml 2 months ago
Damn bro, how many times has this happened to you
InternetCitizen2@lemmy.world 2 months ago
Enough to post the meme
Masterkraft0r@discuss.tchncs.de 2 months 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 2 months ago
Unless the uranium in the box caused a mutation in the cat giving it eternal life.
geomela@lemmy.world 2 months ago
So is Lead-207 special lead, or is it just, like, lead?
FreeBeard@slrpnk.net 2 months 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 2 months ago
Schrödinger’s Nuclides.
Lemmist@lemm.ee 2 months 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 2 months ago
>Puts Iron-56 in a box.
>checks at the heat death if the universe
>still Iron-56
>mfw box also Iron-56