Checkout Portal 2 Science For Gamers



Here is a great way of getting behind the scenes and science of the Aperture and Portal, it is a great of seeing just the background in action and it is playable too, which has to be bonus as well.



These are the details of the Portal 2 – Rube Goldberg Machine v1.0;


Workshop link: You may want to play this in the background: If you are into making maps for portal, you should check out Good for feedback and what not.



Source [Geeks Are Sexy]