When you need an artificial intelligence to put in charge of some important science, you’re going to want Aperture Science’s Genetic Lifeform and Disk Operating System, also known as GLaDOS. Sure, some people might consider her evil but she is dedicated to the scientific cause. And I think we can put our differences behind us… for science… you monster.

In this video, GLaDOS explains the differences between nuclear fusion and nuclear fission to two NASA IT techs.