Holmes radiometric dating

Posted by / 08-Apr-2020 18:57

Holmes radiometric dating

Lomonosov's ideas were mostly speculative, but in 1779, the French naturalist the Comte du Buffon tried to obtain a value for the age of the Earth using an experiment: He created a small globe that resembled the Earth in composition and then measured its rate of cooling.This led him to estimate that the Earth was about 75,000 years old.Wikipedia: Xenophanes interpreted fossil-bearing strata in much the same way during the 6th Century BC.Wikipedia: Nicolas Steno (17th Century) was one of the first Western naturalists to appreciate the connection between fossil remains and strata.Comparing the Wikipedia:mass and Wikipedia:luminosity of the Wikipedia: Sun to the multitudes of other Wikipedia:stars, it appears that the solar system cannot be much older than those rocks.

Darwin of the Wikipedia: University of Cambridge, proposed that the Earth and Wikipedia: Moon had broken apart in their early days when they were both molten.Some Wikipedia: Biblical Wikipedia:young earth creationists believe that the earth was formed as recently as 4004 BC, whereas Wikipedia: Hindu beliefs have the Wikipedia:universe enduring for billions of years before being destroyed and recreated in an endless cycle.After the Wikipedia:scientific revolution and the discovery of radiometric age dating, measurements of lead in uranium-rich Wikipedia:minerals showed that some were in excess of a billion years old.In 1862, the physicist William Thomson (who later became Lord Kelvin) of Wikipedia: Glasgow published calculations that fixed the age of the Earth at between 24 million and 400 million years.He assumed that the Earth had been created as a completely molten ball of rock, and determined the amount of time it took for the ball to cool to its present temperature.

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Biologists could accept that the Earth might have a finite age, but even 100 million years seemed much too short to be plausible.

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