10 proofs of Constant Decay Rates
Concordant Ages from Multiple Methods: Different radiometric dating techniques applied to the same rock sample yield consistent ages, indicating constant decay rates over vast periods.
Alignment with Fossil Record & Geological Layering: Radiometric ages correlate with the relative ages inferred from fossil succession and geological stratigraphy, supporting consistent decay over geological timescales.
Correlation with Other Dating Methods: Radiometric dates align with other dating methods such as tree ring dating and ice core dating, providing independent confirmation of constant decay rates.
Laboratory Experiments: Rigorous laboratory experiments over decades show no detectable variations in decay rates under various conditions, supporting their constancy.
Oklo Natural Reactor: The Oklo natural nuclear reactor, which operated 1.8 billion years ago, left evidence of constant decay rates based on the observed isotopic ratios.
Distant Supernova Light Curves: The light curves of Type Ia supernovae, used as "standard candles" for measuring cosmic distances, provide evidence for constant decay rates over billions of years.
Radiohalos: Radiohalos, tiny spheres of discoloration around radioactive inclusions in minerals, demonstrate consistent decay rates over geological time.
Isochron Dating: Isochron dating, which compares ratios of multiple isotopes in a sample, confirms consistent decay rates and eliminates potential initial condition concerns.
Absence of Excess Heat: If decay rates had been significantly faster in the past, Earth's interior would show evidence of excess heat, which is not observed.
Theoretical Basis: The fundamental physics governing radioactive decay provides a strong theoretical foundation for constant decay rates, with no known mechanisms for significant variations.
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