A Russell W. Porter concept drawing (ca. 1932) of the Foucault Pendulum in the Hall of Science. (Original drawing, Griffith Observatory collection). Commons, https://interestingengineering.com/the-device-that-lets-you-see-the-earth-turn-the-foucault-pendulum | Site-Reading Writing Quarterly

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A Russell W. Porter concept drawing (ca. 1932) of the Foucault Pendulum in the Hall of Science. (Original drawing, Griffith Observatory collection). Commons, https://interestingengineering.com/the-device-that-lets-you-see-the-earth-turn-the-foucault-pendulum A Russell W. Porter concept drawing (ca. 1932) of the Foucault Pendulum in the Hall of Science. (Original drawing, Griffith Observatory collection). Commons, https://interestingengineering.com/the-device-that-lets-you-see-the-earth-turn-the-foucault-pendulum

A Russell W. Porter concept drawing (ca. 1932) of the Foucault Pendulum in the Hall of Science. (Original drawing, Griffith Observatory collection). Commons, https://interestingengineering.com/the-device-that-lets-you-see-the-earth-turn-the-foucault-pendulum

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