Beyond all the grant chasing, bitching and annoying hype merchants, every now and then, I just sit back and smile at scientific discovery— the automated escalator that turns out new knowledge. This is from the ever excellent Fermat’s Library.
This week’s paper is “Age of Meteorites and the Earth” (1956) by Clair Patterson.For most of history, no one knew how old the Earth was – estimates ranged from a few thousand years to a few billion, with no reliable way to choose between them. Then a 34-year-old Caltech geochemist settled it in eight pages. Rather than date the Earth directly, Patterson dated five meteorites and showed our planet belonged to the same family.
The number he got, 4.55 billion years, has barely moved in seventy years.
(The paper is here: https://fermatslibrary.com/s/age-of-meteorites-and-the-earth)