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    Radiodating equation

    He concluded that Earth was born 20 to 400 million years ago.

    Today’s scientists believe that answer is incorrect, but Kelvin’s calculations were in being based on logical thinking and mathematical calculation.

    Another standard, Oxalic Acid II was prepared when stocks of HOx 1 began to dwindle. The ratio of the activity of Oxalic acid II to 1 is 1.29330.001 (the weighted mean) (Mann, 1983). There are other secondary radiocarbon standards, the most common is ANU (Australian National University) sucrose.

    Experts can compare the ratio of carbon 12 to carbon 14 in dead material to the ratio when the organism was alive to estimate the date of its death.

    Ninety-five percent of the activity of Oxalic Acid from the year 1950 is equal to the measured activity of the absolute radiocarbon standard which is 1890 wood.

    This is the International Radiocarbon Dating Standard.

    Many great thinkers throughout history have tried to figure out Earth’s age.

    For example, back in 1862, Lord Kelvin calculated how long Earth might have taken to cool from its original molten state.

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