• Shiki@lemmy.world
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      1 year ago

      No energy is every transferred as a result of a portal

      You fly in the air if you drop in one because you are carrying momentum downwards that suddenly translates to upwards

      You are sat in the floor, a portal flies towards you. You are sat at the floor at the end, you had no momentum going in and no momentum going out

        • Shiki@lemmy.world
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          1 year ago

          Zero fast. There is no energy being transferred to the people, they would plop out and push into each other as they are forced through.

          If you blocked the stationary portal then the portal moving would essentially just be a wall, no one would go though.

          This whole relative thing makes no sense, energy isn’t just created because it’s observed by someone else, the door is moving not the people so them sitting there won’t suddenly be catapulted going through a moving portal, where is that energy created?

          Your wind question is confusing.

          • PeriodicallyPedantic@lemmy.ca
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            8 months ago

            No, the dude is right - if they’re moving “zero fast” upon exiting the portal, then that means they’re either a 2 dimensional paste on the surface of the portal (dead), or they were entirely transported upon contact (cannot partially enter a portal) which is explicitly not how the portals in the game work.

            This is because: if your hand goes into the portal and appears on the other side, it must move out of the way to make room for your arm. Because it is moving, it has velocity, which means it has momentum. If it doesn’t move out of the way, then you’re now 2 dimensional, and dead.

            Also, in portal, energy is absolutely created. Every time you portal to a higher place, you gain potential energy that you didn’t have before, without losing any of the other kinds of energy that you had.