A public service announcement, and how it was made.
Health warning: Beware of math! Especially geometry!
Presenting Olga, the star of codename: Olga and Olga Stark, Girl Reporter, in a rare moment of Not Doing Much.
Dreadful Gate Productions by Max Vähling. Licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.Details here.