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Isn't everything on the earth this old? The dirt in our backyard has been around for 4.4 billion years too. Or is it that this crystal hasn't been changed in
by mathattack 13y ago
Isn't everything on the earth this old? The dirt in our backyard has been around for 4.4 billion years too. Or is it that this crystal hasn't been changed in that long?
- vacri 13y agoWe get new material thrown on us by space every day.
- s0rce 13y agoIt solidified from the melt 4.4 billion years ago and hasn't remelted since.
- Sharlin 13y agoOr otherwise changed. Metamorphism doesn't involve melting.
- jokoon 13y agobreaking news: scientist claims to have found quarks which existed since the big bang.
- evilduck 13y agoThe dirt in your back yard hasn't been around for 4.4b years. Topsoil (decayed organic material and newly eroded rocks mostly) is usually pretty 'young' on geological timescales.
- lutorm 13y agoNot in that form, but the vast majority of the matter certainly has been part of the Earth for that long. By the same definition, I'm not 40 years old either, because practically no part of me is left since I was born.
- mathattack 13y agoRight, but at least we can say you're a relatively old "living" creature where age is a more relevant number. (I'm getting up there in "relatively old" years too.)
- chongli 13y agoWhen you put it that way, everything in the universe is the same age.
- mathattack 13y agoThat's where I was going. What do they mean by age? Although one could argue that the speed things travel through the universe alters their age, but from when the Earth materialized, it shouldn't change much from particle to particle. If you're arguing for "oldest living thing" I do get it.