References

1. “Listening to Earthquakes.” U.S. Geological Survey, earthquake.usgs.gov/learn/topics/listen/.
   
2. “Rolling, Torque, and Angular Momentum.” Ohio State University, www.physics.ohio-state.edu/~gan/teaching/spring99/C12.pdf.
3. Knight, Randall D., (Professor Emeritus). Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (Page 392). Pearson Education. Kindle Edition. ​
   
4. ​Constantinsen, Bo. “Where All Music Comes From.” What Music Really İs, whatmusicreallyis.com/research/source/. 
5. Foley, Dan. “The Physics of Sound.” Physics of Sound | Waveforms, Interference Patterns, Frequency Analysis, www.podcomplex.com/guide/physics.html. 
6. “Fundamental and Harmonics.” Total Internal Reflection, hyperphysics.phy-astr.gsu.edu/hbase/Waves/funhar.html. 
7. Vibes, Acoustic. “Physics of Natural Harmonics (in Guitar).” YouTube, YouTube, 29 Aug. 2016, www.youtube.com/watch?v=Cweje0HD_Ak.