this post was submitted on 16 Jan 2024
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I'd do the math on how much thrust you'd get out of sticking one portal at the bottom of the Mariana Trench and the other in a ship, but I think it'd maybe be slightly tricky because you've got yourself an inertialess thruster right there, which is slightly illegal according to physics.
The Einstein cops are gonna show up and impound your spaceship
And that's just thinking about a static arrangement of portals. You could also use a dynamic arrangement where you use gravity to accelerate mass to arbitrarily high speeds and then fling it out the back
If you could make portals bigger you could also have a fun setup where you build your spaceship and then just let gravity accelerate it though a portal-loop.
You get going as fast as you want, then just swap the portals so you're now aimed at Mars.
@[email protected] thread a rope with a weight through two vertical portals so the rope is pulled through infinitely as the weight drops.
Now you have infinite rotational energy to run a generator and the thermodynamics police are definitely going to break down your door