this post was submitted on 19 Sep 2023
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science

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just science related topics. please contribute

note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry

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[–] expatriado@lemmy.world 50 points 1 year ago (1 children)
[–] Haui@discuss.tchncs.de 27 points 1 year ago (1 children)

Anticompetitive strategies of other universes.

[–] CIA_chatbot@lemmy.world 22 points 1 year ago (2 children)

Late stage cosmos-capitalism is a bitch

[–] postmateDumbass@lemmy.world 2 points 1 year ago

The MBAs have redefined Universal Sufferage

[–] Haui@discuss.tchncs.de 1 points 1 year ago

Your username is hilarious! Made me exhale a little faster than usual. :)

[–] jumbodumbo@lemmynsfw.com 20 points 1 year ago (3 children)

The universe isn't small at all actually it's pretty average for its age some would say big even

[–] postmateDumbass@lemmy.world 1 points 1 year ago

That's just so it doesn't feel bad.

[–] droans@lemmy.world 0 points 1 year ago

The universe was big enough for the dinosaurs ☹️

[–] Illogicalbit@lemmy.world -1 points 1 year ago

That’s what she said?

[–] ramble81@lemm.ee 6 points 1 year ago (5 children)

At some point wouldn't gravity override the expansion and cause a contraction again?

[–] DeadNinja@lemmy.world 20 points 1 year ago (1 children)

Last I checked, the "Big Crunch" hypothesis got rejected by scientists.

I am no expert, so can't elaborate any further.

[–] ramble81@lemm.ee 6 points 1 year ago (1 children)

That's alright, I wasn't an expert when I asked the question. I was just curious about it.

[–] Plopp@lemmy.world 2 points 1 year ago

I am an expert. But not on this topic so I can't help y'all.

[–] Khavanon@lemmy.today 10 points 1 year ago* (last edited 1 year ago)

The effects of gravity spread at the speed of light. If the sun suddenly blinked out of existence, it would take eight minutes to both see it disappear from Earth and notice a change in our planet's motion. In other words, the planet would continue to orbit that empty space in the middle because the sun's gravity, much like it's light, would still be extending out to us.

The universe is expanding in every part of space all at once. Some places are so far apart that the collective expansion between them is growing at greater distances in a given amount of time than light can travel. And the same can be said for the effects of gravity, but the motion of objects caused by gravity at great distances is far, far slower than the speed of light.

Our galaxy is moving in a direction that is caused partly by something called "The Great Attractor." But even though it's causing us to move, we will never reach it, and it's influence on us will gradually weaken. And it's not even that far away compared to most of what we know is out there.

That being said, this news is interesting.

[–] FooBarrington@lemmy.world 9 points 1 year ago

No, the expansion is accelerating.

If it was gravity causing it, it wouldn't be unusual.

[–] Pottsunami@lemmy.world 2 points 1 year ago (2 children)

Heres a great source

It explains why the universe will have a cold death instead of a heat death.

Right now the universe is expanding and its expanding faster today than yesterday. Things could change, but current math points to a cold death

[–] xanu@lemmy.world 17 points 1 year ago (2 children)

I always interpreted "heat death" as "the death of heat" instead of "a hot death"

[–] Perfide@reddthat.com 6 points 1 year ago

Your interpretation is correct.

[–] Pottsunami@lemmy.world 2 points 1 year ago (1 children)

You are correct and I misremembered it. "The Big Freeze" and "Heat Death" are the same thing. Thats when everything expands until there is no more heat.

If someone knows the correct terms for what I am talking about please let me know. Let me explain further.

What I am talking about is the opposite of heat death, which is somehow in my mind at a hot death? Basically, where everything goes back to one singularity instead of expanding forever.

Big crunch is what I've heard it called but I don't know if that's what you're thinking of. Googling that might give you a start though.

[–] Perfide@reddthat.com 6 points 1 year ago* (last edited 1 year ago) (1 children)

That IS the heat death of the universe. It's not heat death as in "a wave of heat destroys everything" or anything like that, it's heat death as in "there is no more heat(aka condensed energy), everything is equally cold(aka lack of condensed energy) everywhere. Heat itself is gone, has died".

[–] Pottsunami@lemmy.world 1 points 1 year ago

That is correct and I misremembered. For some reason a heat death makes me think of going back to a singularity because a singularity would probably be the hottest thing ever. Ironically, a heat death would be really cold

[–] postmateDumbass@lemmy.world 5 points 1 year ago

Its getting older, out of shape. Can't stretch like it used to. To many High Fructose Particles getting pinched in its gravity belt to move that fast.

[–] greavous@lemmy.world 3 points 1 year ago

It's an old man with a beard and a scary need to be worshipped by nutters

[–] RGB3x3@lemmy.world 2 points 1 year ago (1 children)

Sorry guys, I've been a bit constipated lately.

[–] phillaholic@lemm.ee 1 points 1 year ago

New explanation for the Big Bang?

[–] MeanEYE@lemmy.world 2 points 1 year ago (1 children)
[–] PlushySD@lemmy.world 1 points 1 year ago

Must be The One Above All