Category Archives: Geology

Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun

Posted on May 12, 2013 by

            Yeshu Kolodni and Lord Kelvin The question In 1862, the physicist William Thomson (who later became Lord Kelvin) of Glasgow published calculations that fixed the age of Earth at between 20 million and 400 … Continue reading →

Posted in Geology, Physics, Test your intuition | 7 Comments

Test your Intuition/Knowledge: What was Lord Kelvin’s Main Mistake?

Posted on May 8, 2013 by

The age of the earth (Thanks to Yeshu Kolodny) We now know that the age of the earth is 4.54±1% Billion years. From Wikipedea: In 1862, the physicist William Thomson (who later became Lord Kelvin) of Glasgow published calculations that … Continue reading →

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