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Journey to the East

bill hertha
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Journey to the East
bill hertha

The Pendulum

February 20, 2012

Simple harmonic motion from Harvard:

In A Day in the Life
← Newer: Honda SUV Older: Spanish Bay #5 →
Creative Commons License
This work is licensed by William F. Hertha 2013 under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.