Sunday, December 09, 2018

How to unwrap the Earth into a gigantic O'Neill Cylinder




“3Blue1Brown”explains “But Why Is a Sphere’s Surface Area 4 Times Its Projection?


This 17 minute video offers two visual proofs of Area – 4 times pi times radius squared. The visual methods correspond to differentiation and integration in calculus. 

The unrapping of the sphere as a cylinder offers what – well, an O’Neill cylinder.

The projection of a shadow onto a flat plane also offers some possible sci-fi concepts if you want to make a movie about life in space.

This little video reminds me of my substitute teaching days.

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