Recent content by ghost2

Due to the contention over the use of portals, I've mocked up a version of the problem without them. It's still the same basic problem, but without the ambiguity of a fictional device. The revised version of the problem goes like this: "If a sufficiently large number of cylindrical fixed...

Sorry. I didn't know speculative posts were https://www.physicsforums.com/search.php?searchid=2225649" ...

Though it's operation is imaginary, it can still be modeled mathematically. Just as 'frictionless surfaces' and 'perfectly elastic collisions' don't really exist, you can still model them and determine how they might behave if they were real. Sure nobody has an infinitely large hockey arena...

I'm assuming based on the wording that there's a diagram that goes with this? It's kinda hard to solve a geometry problem if there's supposed to be a picture with it.

I was surfing digg yesterday, and saw the following post: http://images.wildammo.com/2010/07/24/world-energy-problems-solved/ For those who don't recognize it, it's based off a video game called 'portal'. In the picture, the water falls towards the floor where it falls through the blue...