Article describing efforts in the 19th and 20th centuries to determine the Earth's age, particularly using naturally occurring radioactivity. It notes that scientific disciplines frequently overlap in the work they do. Questions are posed throughout about the nature of scientific research.

Concepts

radioactive dating, radioactive decay, lord kelvin

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Additional Tags

measuring radioactive decay, earth's age, kelvin, william thomson, age of earth

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)