How Long To Fall Through The Earth?

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Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder

REFERENCES

Gravity & Spherical Shells: http://hyperphysics.phy-astr.gsu.edu/hbase/mechanics/sphshell.html

More Shell Theorem: https://en.wikipedia.org/wiki/Shell_theorem

Density inside the earth (Preliminary Reference Earth Model): https://en.wikipedia.org/wiki/File:RadialDensityPREM.jpg

Gravitational acceleration inside the earth: https://en.wikipedia.org/wiki/File:EarthGravityPREM.jpg

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Created by Henry Reich