Smithsonian Institute Foucault Pendulum

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POSTCARD TITLE: Smithsonian Institute Foucault Pendulum

POSTMARK: 1969

TYPE/BACK: Chrome, Divided Back

COMMENTS: The Foucault Pendulum demonstrates the rotation of the earth. The earth (and therefore the floor) rotates daily, while the pendulum tends to swing always in the same straight line and therefore lags behind. Museum of History and Technology, Smithsonian Institution.

Nice card. Corners are slightly rounded. Good colors. Check the photo for more details.