Radiocarbon dating alternatives
Scientists use a technique called radiometric dating to estimate the ages of rocks, fossils, and the earth.
Many people have been led to believe that radiometric dating methods have proved the earth to be billions of years old.
The paper is published in Earth and Planetary Science Letters.
This causes their orbit north poles to precess backward around the Solar System's angular-momentum vector, and their eccentricity vectors to precess forward.
The eccentricity vector is eccentricity * (perihelion direction).
The half-life of an isotope like C14 is the time it takes for half of it to decay away: in C14, every 5,730 years, half of it is gone.
So, if you measure the amount of C14 in a dead organism, you can figure out how long ago it stopped exchanging carbon with its atmosphere.
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Georg-August-Universität Göttingen - Dendrochronology It has been used to calibrate C-14 dating, since C-14 production in the upper atmosphere depends on how much cosmic rays the Earth receives, which varies due to various factors.