this post was submitted on 16 Apr 2024
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[–] [email protected] 6 points 2 months ago (20 children)

But this character died stationary on the floor. Unless it's the Earth moving away from her as part of its normal orbit, in which case she'll get to visit it again soon

[–] [email protected] 30 points 2 months ago (18 children)

No because the sun and the earth are always moving in a line and an orbit in addition to their orbit.

The actual absolute position would resemble a curving helix or something. Nothing in the universe is ever in the same general location twice for our current understanding. Everything is moving.

[–] [email protected] 2 points 2 months ago (12 children)

Not exactly. Things are moving relative to each other, but it really is all relative and local. There's no central point in the universe that the earth is moving away from. The earth is moving relative to the sun. But relative to you, the earth isn't moving. Relative to the earth, the sun is moving.

There's no reason for her to move away from the earth unless she's being accelerated by something. It's not like the earth would zip away because it is moving relative to some distant, arbitrary point and she suddenly becomes "stationary". There's no universal "stationary".

I guess where it gets messy is that the earth IS being accelerated to some extent by different things (other planets, the moon, etc). I'm not sure how much. So if she didn't accelerate along with it at all, it would move away from her.

[–] [email protected] 3 points 2 months ago (1 children)

If she is still affected by gravity, but passes through matter, she would immedietly fall through the floor and start orbiting the earth through the planet.

Without gravity she would no longer follow the earth's/sun's/etc. orbit.

[–] [email protected] 1 points 2 months ago (1 children)

but the question is what would determine the trajectory then, there is no universal arbitrary straight line, that's a concept that just doesn't make sense under physics as we know it.

Even massless particles gain an effective mass and thus interact with gravity/spacetime; according to everything we've observed and calculated so far the only sensible result is acting like light does, and weakly interacting with gravity.

[–] [email protected] 3 points 2 months ago (1 children)

Well, yea, idk how moving through spacetime without following it's curvature would makes any sense. Which is what gravity is. Meaning the comic makes no sense.

[–] [email protected] 2 points 2 months ago (1 children)

Meaning the comic makes no sense.

Holy shit, you're right.

What the absolute fuck OP

[–] [email protected] 1 points 2 months ago

I thought we were so close to solving it too. Too bad it's all a scam. A malicious lie made to trick the foolish.

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