Dating video dinosaur brains Kostenlossex chat

Posted by / 27-Jan-2018 08:43

Dating video dinosaur brains

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The half-life of the isotope being measured determines how useful it is at dating very old samples.

The result is like a radioactive clock that ticks away as unstable isotopes decay into stable ones.

You can't predict when a specific unstable atom, or parent, will decay into a stable atom, or daughter.

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When paleontologist Mary Schweitzer found soft tissue in a Tyrannosaurus rex fossil, her discovery raised an obvious question -- how the tissue could have survived so long?