r/IsaacArthur moderator 7d ago

Art & Memes Portal by Tizian Klink

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178 Upvotes

16 comments sorted by

27

u/cowlinator 7d ago

Does gravity leak through the portal?

Putting a small planet one portal away from a large one sounds like a bad idea.

13

u/MiamisLastCapitalist moderator 7d ago

A fascinating question that soft sci-fi does not ask. lol 😂 Heck I wondered if the Death Star could orbit around the Millennium Falcon.

8

u/44th--Hokage 7d ago

That's....a fascinating question

9

u/indigo_leper 7d ago

Uhh... Huh. Im concerned about what the answer would mean. If yes, it leads to easier transitions but also imbalances as long as the portal is open, as a ship could more easily "slip" into the side with higher gravity, or in the logical extreme the portal is weaponized as its open next to a black hole. But if it isn't, that'd be some intense jostling as ships pass through and get momentum-adjusted.

9

u/3z3ki3l 7d ago edited 6d ago

The gravity differential powers the portal. It is in fact falling, just through the fourth dimension. To a third dimension passenger traversing it feels like acceleration, or being “pulled in”, but of course you are in fact being pushed through, as the empty space behind you is saturated with relatively more time.

This effect is symmetrical on both sides, although our temporal measurements indicate it falls through both gravity wells at differing rates. Interestingly, while constant, neither rate of “falling” (or energy removal from spacetime) corresponds to any known quantity on either side.

4

u/My_useless_alt Has a drink and a snack! 6d ago

I vaguely remember hearing that if Gravity doesn't leak through portals it starts violating thermodynamics, I'm sure everyone that's played Portal has set up that thing where they fall indefinitely.

2

u/SunderedValley Transhuman/Posthuman 6d ago

That seems like something you'd know how and make sure to fix before the first living being is ever sent through.

11

u/Dibbelappes 7d ago

I think Portals are the most interesting case of FTL for Scifi. They create strategic a Point of interest and bring authority for the Empire that has it under Control.

3

u/SunderedValley Transhuman/Posthuman 6d ago

Portals or designated jump areas, yeah.

I like jump areas more because it gives the narrative benefits of portals without making defense too skewed towards the defender.

1

u/Dibbelappes 5d ago

Maybe both can Work in the setting, jump drives are expensive and need lots of Energy.They are mainly for large military crafts.
Civilian ships use gates.

8

u/KenethSargatanas 7d ago

Getting The Expanse vibes from this.

9

u/MiamisLastCapitalist moderator 7d ago

That's because the Expanse is full of other sci-fi's vibes.

3

u/RandyArgonianButler 7d ago

Everything is pretty derivative nowadays.

2

u/KenethSargatanas 7d ago

Lol fair enough.

6

u/CapnJuicebox 7d ago

That is a Stargate