*Can you calculate the length of Carleton University Foucault pendulum based on its period of oscillation?*

For a simple pendulum (massive bob attached to a pivot point with a piece of string), the period of oscillation (*T*) can be found using the following equation:

where *L* is the length of the pendulum and *g* is the gravitational acceleration (9.81 m/s^{2}). If you measure the period of oscillation (the time it takes to go back AND forth), you can solve for *L*.

Go ahead and try to calculate the length yourself. Did you get close to the answer?

**Links**

Historical description of Carleton University's Foucault pendulum

Wikipedia entry for the Foucault pendulum

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