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Original video collaboration with Vsauce: https://www.youtube.com/watch?v=jN-FfJKgis8

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

REFERENCES

Gravity & Spherical Shells: http://hyperphysics.phy-astr.g....su.edu/hbase/mechani

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

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

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

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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!

Created by Henry Reich