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The Portal Paradox

Go to https://nebula.tv/minutephysics to get access to Nebula, plus you'll get a 20% discount on an annual subscription. This video is about the Portal Paradox - a paradox in the video game Portal (and Portal 2) regarding whether or not a companion cube passing through a moving portal plops out of the other end with no speed (velocity, momentum), or shoots out at high speed. It’s a question of conservation of momentum, relativity of velocities, wormholes, 3D printers and quantum teleportation, glitches, and more. REFERENCES Conservation of momentum https://en.wikipedia.org/wiki/Momentu... Principle of Locality https://en.wikipedia.org/wiki/Princip... YouTube video of testing the Portal 2 game engine on the portal Paradox    • Portal 2 - Moving Portal Physics Test   Tutorial for how to program the Portal portals on your own: https://www.gamasutra.com/view/featur... Support MinutePhysics on Patreon!   / minutephysics   Link to Patreon Supporters: http://www.minutephysics.com/supporters/ MinutePhysics is on twitter - @minutephysics And facebook -   / minutephysics   And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich