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.