The correct answer would have been: "Why should I? You're an idiot."
Science Memes
Welcome to c/science_memes @ Mander.xyz!
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
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Oh yeah, well were you there 4.5 billion years ago to see this so-called uranium 238?!?
Check mate, science!
I mean, the existence of lead doesn't necessarily prove the age of the earth so much as that those elements have existed for that long.
HOWEVER -- you're basically guaranteed to find lead in uranium deposits found around the earth, and the ratio of lead/uranium is how we calculated the 4.6 billion years.
Uranium is formed in Neutron stars or Supernova, so at the very least - the uranium found on earth itself is 4.6 billion years old. Whether "Earth" was "Earth" back then, who knows. This could be pre-moon? Could be before the earth even cooled down to have a solid outer layer? So the estimate is bound to be off by a little...
Just not by 4.5 billion years.
I'm pretty sure just soap has been around for more than 4.5k years and that means civilization too. So even if you do some backflips in justification here, there's no way you get 4k.
Lead 204 is entirely primordial and the other isotopes found on earth would be found at roughly the same concentration were all of the lead on earth primordial. It's the excess ratios of the other isotopes of lead that can be attributed to radioactive decay. That is a substantial proportion of the lead on earth, but to say the "existence of lead" is proof of the age of the earth is entirely incorrect.
is this even a real conversation? its just circles and rectangles
There's evidence of human civilization and agriculture going back at least 10,000 years. You have to be extremely willfully ignorant to think the earth is only 4,000 years old. Hell the pyramid of Giza is older than that.
You have to be extremely willfully ignorant to think the earth is only 4,000 years old.
The Bible itself makes it obvious that the 4,000 year old thing is a lie.
destroy all religion for the sake of humanity
There’s bread from 14,000 years ago
Look I don't like them either, but you can't refer to crusty bishops that way
Is decay the only way to get lead? I mean if uranium gets synthesized can't lead get made as well?
Radioactive decay is not the only way to make lead, and lead is produced in much greater abundance than uranium.
The part that's missing in the post is in looking specifically at uranium deposits and making assumptions about the initial composition of the deposits, since the crystalline structure excludes lead when the crystals form. So if you detect lead contained within zircon, it is assumed to be the product of radioactive decay.
If uranium-238 can be Fused in a star why couldn’t lead be Fused directly and in tern all the elements in between.
But I take everything literally, other than when its inconvenient