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Foucault Pendulum

Foucault Pendulum. To develop an ongoing, interactive experiment to demonstrate the Earth’s rotation. Acquired more accurate data on the pendulum’s damping and period. Began working on the Driving mechanism with Paul Nonn . The main focus now is to create an effective driving mechanism.

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Foucault Pendulum

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  1. Foucault Pendulum • To develop an ongoing, interactive experiment to demonstrate the Earth’s rotation. • Acquired more accurate data on the pendulum’s damping and period. Began working on the Driving mechanism with Paul Nonn. • The main focus now is to create an effective driving mechanism. Joseph Sterle, UW-Madison

  2. Vital Facts and Activities • Used a Pasco photogate to make an accurate measurement of the period • Used a Pasco motion sensor to obtain a position vs time graph of the pendulum’s motion to see the damping • Attended a meeting with Paul Nonn to develop ideas for the electromagnetic driving mechanism.

  3. Results/Accomplishments/Progress Position vs time graphs for the pendulum

  4. Results/Accomplishments/Progress Period from photogate is 9.6212 seconds A graph of the max amplitudes (over about 3-5 minute intervals) for the first 20 minutes the pendulum ran. • Local gravitational field (g) in Chamberlin Hall is 9.803636 m/s2 • Length of the pendulum is 23.12 meters • Calculated period is 9.648 seconds • Percent error is .2778 %

  5. Issues and Needs • Best way to create a driving mechanism for our pendulum? • Using Paul’s plan • Using a circuit contained of MOSFETS, Arduino or timer, power supplies, and an electromagnet. • How to track precession and elliptical motion of the pendulum? • Stopping elliptical motion

  6. Action Items and Plans • Test Paul’s driving mechanism • If that doesn’t work then begin working on Arduino method, or another method • Use video cameras and a video tracking software to get data on precession and elliptical motion. • Create a Charon ring

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