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Interesting historical fact: The salinity of the Earth's oceans was proposed as a clock for measuring the Earth's age by Halley in 1715. This method ultimately
by cperciva 9y ago
Interesting historical fact: The salinity of the Earth's oceans was proposed as a clock for measuring the Earth's age by Halley in 1715. This method ultimately arrived at ages around 50 million years (it didn't account for salt losses due to tectonic activity) and was one of the major stepping stones towards establishing public confidence in the idea of an "old" Earth.
- toephu2 9y agoBut Earth is about 4.54 billion years old [1]. [1] https://www.space.com/24854-how-old-is-earth.html https://www.space.com/24854-how-old-is-earth.html