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1

For the shape and structuring of the portal it would most likely work off theoretical structures of wormholes as being a three-dimensional hole in space-time, this being a very hard shape to wrap your head around as all holes we normally encounter are 2D (like drawn on paper) or just form a cylinder/tunnel if they are in a 3D structure like a wall or floor). ...


3

The question is what your dimension is? Is it a complete universe for example. In that case the question would be why the other side is cooler. One reason might be that the expansion of the space is further ahead than in your warmer dimension. So it begs the question of the physics on the other side is even still comparable depending on how far the expansion ...


4

It seems to me like such a rift need not look like anything. Since the other dimension is lower energy, an osmosis-like relationship with our dimension might exist where our warmth, brightness and motion might seep away from us with absolutely nothing returning from the other side. Such a rift would fit beautifully with a Gothic-ghost-story or Cthulu-mythos ...


5

Introduction: This is my first answer on Stackexchange so feel free to correct any mistakes I will undoubtedly make, especially with the math formatting as I am not very good at that either(although I will try my best). I also know that I am a bit late to answer this question, but I hope that this answer will still bring some insight into why moving the ...


4

Normally, I would agree with the other answers that moving the moon is impractical when you can just move the asteroid. However, If your advanced space telescopes can predict the path of a massive asteroid in the Kupier belt many years in advance then it can make some sense. Let's say we discover an object similar to 90482 Orcus with a mass of 6.4 x 10^20 ...


3

Another problem with moving the Moon to block an asteroid is that changing the Moon's orbit will change the schedule of the tides on Earth. Many lifeforms live full or part time in the tidal zone. Changing the tidal schedule could cause many of those species to go extinct, which could start a chain reaction of extinctions. That would be a very bad ...


2

There is another big problem to consider when using the moon as a shield. The moon is held in orbit by a balance of it's acceleration and it's mass. If it slows down it will fall into the earth because the effect of the earth's gravitational pull will be stronger than it's orbital momentum. If it speeds up the momentum will be stronger than the gravitational ...


9

Short answer: No. Also: it'd be a terrible idea to try when you could just move the asteroid instead. The Moon has a mass of 7.3 * 1022 kg. The energy change required to move the Moon even one meter would thus be: U = mgh (potential energy in a gravitational field) The gravitational acceleration exerted by the Earth at the distance to the Moon is ...


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