William Thomson, 1st Baron Kelvin
Thomson, now Lord Kelvin, ultimately settled on an estimate that Earth was 20–40 million years old
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William Thomson, 1st Baron Kelvin
Thomson, now Lord Kelvin, ultimately settled on an estimate that Earth was 20–40 million years old
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.