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Earth rotation day 2025 - January 08
January 11 , 2025
7 hrs 0 min
24
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- This day celebrates the anniversary of French physicist Leon Foucault’s 1851 proof that the Earth rotates on its axis.
- The day also honours Foucault’s first public demonstration in Paris.
- It was 470 BC, the Greeks claimed that the earth moved on itself.
- But Foucault demonstrated the world’s rotation with the help of a pendulum.
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