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Foucault Pendulum at the Oregon Convention Center
- Published_at:2009-10-18
- Category:Education
- Channel:stevekny
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- description: Each pin represents an hour...and there are 33 of them in the full circle (it takes the pendulum 33.5 hours to make a full circle at Portland's latitude - a Foucault Pendulum rotates slower and slower - from 15deg/hour at the poles, where the entire...
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