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Encyclopedia of scientific dating methods

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Radiometric dating is based on the decay rate of these isotopes into stable nonradioactive isotopes.

To date an object, scientists measure the quantity of parent and daughter isotope in a sample, and use the atomic decay rate to determine its possible age.

As any first-year student of algebra soon learns, a single equation with two unknown variables cannot be solved.

In fact, the above formula is far too simple, because it assumes that the amount of daughter isotope was zero at start.

Yet, as we found in , non-radiogenic dating methods show the moon to be only a few thousand years old.—p. Tens of thousands of tests, costing millions of dollars in salaries and lab time, have been discarded because they have been found to be useless. Of the 1,400 radioisotopes known to exist, only 75 have half-lives longer than 700 years.

Other methods such as Potassium-argon dating and Isochron dating are based on faulty assumptions and so unreliable as to be useless.

Many atoms (or elements) exist as numerous varieties called isotopes, some of which are radioactive, meaning they decay over time by losing particles.

In these cases, lava of a known age of no more than several thousand years (and in one case, no more than ten years) had argon in it when it formed, so that the rock was calculated by K-Ar dating to be millions of years old, even though it was known to be only thousands of years old.

Numerous fossils have been found in strata inconsistent with the evolutionary model of Earth's history.