Question

    Earth's Rotation Day is commemorated on which date every year?

    A July 12th Correct Answer Incorrect Answer
    B December 11th Correct Answer Incorrect Answer
    C May 10th Correct Answer Incorrect Answer
    D January 8th Correct Answer Incorrect Answer

    Solution

    Earth's Rotation Day is observed annually on January 8th. This day marks the anniversary of the demonstration by French Physicist Leon Foucault in 1851, which visually showed Earth's rotation through the use of a pendulum, providing concrete evidence to support earlier theories.

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