out for maintanance. one of the 0603 bulk caps in the 12V rail to the fans blew shorting it all. Had to remove the 7805 and then cap by cap to find that out. Aaaaaaaand it's wurkin again...
I think there's maybe more risk with the solar system being thrown off balance with other gravitational forces pulling things out of orbit. Even if earth just gets pulled away from the sun a little we are screwed. Or even the moon pulled away from earth somewhat.
Even if earth just gets pulled away from the sun a little we are screwed.
I get what you're saying, but had to laugh at the use of "a little" here. The goldilocks zone in the solar system is roughly the between the orbits of Venus and Mars, and we're almost right in the middle of it, so "a little" is like 150 million km.
I would imagine that the first issue we would experience would be that the moon would be pulled out of Earth's orbit first and then we lose the ocean tides and the stable tilt of the earth. It would probably get worse from there.
Goldilocks zone is basically just where life can survive.
Even if we stay within the Goldilocks zone doesn't mean that most of the species alive today won't go extinct because it fucks up the seasons or the magnetic poles or tilt of the earth, etc.
It's even safer. The odds that it's coming directly at us to "collide" is low. Moving towards us doesn't mean it's moving directly at us. If you're driving down the road, all cars going in the other direction get doppler shifted. They're coming towards you, they pass beside you (hopefully), and then they're moving away from you.
You know how the sound of things moving from you changes? Towards you the pitch is higher, away from you it is lower. The same happens with light. We know how some things should look like, so if they are more toward red or blue, we know their speed relative to us. Blue = towards us = "we will collide" (you also do not collide with every car with a siren where you hear that effect).
If something is red shifting, it's accelerating away from you. If something is blue shifting, it's accelerating towards you. An entire galaxy accelerating towards you is somewhat concerning.
On top of that, we've found that basically everything is redshifting as the universe expands. So to see a blueshifting galaxy would mean something potentially unnatural.
Redshift comes from relative velocity (and other effects), not acceleration. Andromeda's light is blueshifted as it's moving towards us, but it's not accelerating.
I was going to argue with this too, but the meme says blueshifting, not blueshifted. They're right, but mostly because the meme is probably written poorly. Maybe they meant it's accelerating toward us though. Idk.
Right, but I don't get why this thread is full of people talking about collisions. Even if it was moving at the speed of light (it's not) it's still billions of years away.
It would just prove our theory of universe inflation to be incorrect.
I know you can't see this comment but maybe someone else will find it useful
Just like how a siren changes pitch when it's coming from a vehicle passing by due to the Doppler effect, the same thing happens to moving light sources due to relativistic effects.
Usually astronomical objects are redshifting because the universe is expanding and are thus receding away from Earth's frame of reference. Most of them are forever unreachable even if we could travel at the speed of light.
Something blueshifting means it's coming closer from Earth's frame of reference. In some cases, this could result in the galaxy colliding with ours, such as the hypothesized collision between the Andromeda Galaxy and the Milky Way
Could it potentially be an object orbiting around the cosmic center that just so happens to have an orbital path that crosses us?
I have to admit that astronomy is what caused me to change majors, but that's because I stopped going to class when the lesson was, "This is a terrestrial planet, it's rocky," and my first exam was like, "If it's 5:45pm in Tanzina on October 15th, how many degrees is the moon above the horizon?"
Since the speed something is moving away is dependent on the distance, something billions of light years away is absolutely not going to be moving towards us, regardless of its local orbits.
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It is gigantic & very luminous but it's also just too far away to be really noticeable - on its own is just on the limit of the best of human eyes if there would be no other star in the sky (very dim, with the visible/luminous core being only about the size of the Moon or smaller - the full galaxy is 5× larger on the sky compared to Moon, but that's not comparable in luminosity).
Disregarding human pollution there are just too many starts from Milfky Way way closer to us.
Blue shift, it's moving towards you, the photons are being "compressed" to a higher, bluer frequency. Redshift, the light is being "stretched" to a lower, redder frequency. Both only noticeable at significant fractions of the spped of light, relativistic speed.
Something ominous about the post is that a cosmic object that is moving towards you at a steady rate is consided "blueshifted" in the past tense, it's velocity is steady. If a galaxy is "Blueshifting" in the present tense, then that galzy is somehow accelerating at you, which is impossible unless it's under direct control by an entity, presumably a kardeshev level 3 civilization.
Isn't the rate of expansion in the universe increasing, and at an uneven rate at that? Meaning it could just as easily be an as of yet unknown natural phenomenon?
The expansion is supposed to be happening everywhere at the same time, not just at the edges. For example, tomorrow there should be more space between the Sol and Alpha Centauri systems than there was yesterday. Our present understanding suggests that 'normal' universal expansion should not (in and of itself) result in anything moving towards us.
Yes, but not because of universal expansion really, they're just headed in a direction that is going to intersect at some point, likely combining the two galaxies together. This'll be so far in the future we'll all be long dead though, on top of it being unlikely that anything is going to even come close to our solar system
It's not just that, but it is unlikely that any star in our galaxy will collide with any star in Andromeda.
I think it's easy to think of galaxies as individual things, like these nodes in the universe where all the stuff is stored. But galaxies are incredibly vast and incredibly empty.
The part that stuck with me is that if you made the Milky Way the size of the United States, our gigantic sun holding 99.86% of the matter in the solar system would be microscopic -- the size of a red blood cell. And iirc, the planet earth would be all the way down to the size of a virus.
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Yep. Space is expanding everywhere at once, but the effect is minuscule at the scales we're used to. And even at galactic scales the "speed" of expansion might seem like a lot to us, but it still isn't enough to overcome the motion of objects. I looked up some rough numbers to give you an idea:
The rate of expansion of space is 73 km/s/Mpc. So for every 3.26 million light-years between you and a distant galaxy, the space between you and that galaxy is expanding by 73 kilometers per second.
Andromeda's blue shift indicates it's headed towards us at 110 km/s. And in my non-expert head I'm thinking that blueshifted light must have already been redshifted by the millions of years traveling through space to reach us. So the galaxy's speed through space towards us when the light was emitted was considerably higher.
Andromeda is 2.5 Million light-years away, btw. So the cumulative distance of space between here and there is expanding at something like 73 km/s/Mpc * 2.5 Mly * 1Mpc/3.26Mly = 57 km/s.
But when talking about relativistic distances and speeds, basic te
... Show more...
Yep. Space is expanding everywhere at once, but the effect is minuscule at the scales we're used to. And even at galactic scales the "speed" of expansion might seem like a lot to us, but it still isn't enough to overcome the motion of objects. I looked up some rough numbers to give you an idea:
The rate of expansion of space is 73 km/s/Mpc. So for every 3.26 million light-years between you and a distant galaxy, the space between you and that galaxy is expanding by 73 kilometers per second.
Andromeda's blue shift indicates it's headed towards us at 110 km/s. And in my non-expert head I'm thinking that blueshifted light must have already been redshifted by the millions of years traveling through space to reach us. So the galaxy's speed through space towards us when the light was emitted was considerably higher.
Andromeda is 2.5 Million light-years away, btw. So the cumulative distance of space between here and there is expanding at something like 73 km/s/Mpc * 2.5 Mly * 1Mpc/3.26Mly = 57 km/s.
But when talking about relativistic distances and speeds, basic terms regarding time and location don't always make sense.
It's the doppler effect, but with light instead of sound, and for the same reason.
Thing emits sound/light waves at a constant rate: sound/light waves hit you at a constant rate.
Thing continues to emit the same sound/light at the same rate, but starts to move toward you: sound/light waves hit you at a faster rate, causing the sound/light to turn higher-pitched/bluer.
Thing continues to emit the same sound/light at the same rate, but starts to move away from you: sound/light waves hit you at a slower rate, causing the sound/light to turn lower-pitched/redder.
Milky Way is going to collide with Andromeda… over the course of millions of years, and due to the distance between stars and other objects the two galaxies are just going to merge with each other and very few things will actually make physical contact.
Well, if they collide (and merge), they'll also fling a lot of stars into the void, but we aren't too sure anymore that's actually gonna happen. NASA explains why (YT, 2:30min).
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Might be a dumb question, but if it's blue-shifting surely we wouldn't know it's far away in the first place? I thought the amount of redshift is broadly how we determine cosmic distances?
From my understanding blue and red shifting is mostly related to movement. Like when a firetruck run past you with sirens on, you can hear change in pitch when compared it moving towards you vs away from you. It's a similar effect with galaxies, red shifting means that after the light was emitted the space between us has increased and the light kind of stretched out to longer wave.
Now anyone with more knowledge on the subject, please correct me.
Yes, but everything red shifts "naturally" as well as the light travels because of the expansion of the universe. So something traveling towards us will still red shift, just slightly less so. To determine distance you have to use something called the cosmic distance ladder. It consists of known properties of stellar objects that we can measure to determine the distance of objects.
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You're missing the point that the universe is expanding uniformly. That means two points acceleration away from each other is dependent on their distance apart. The further they are from each other the faster they accelerate from each other.
So GP is right. We measure red shift and infer distance.
Also a quick question about NVDA. I was the one to help people with this same thing before, but I forgot what I did and now is a time for doing, not thinking so much. What setting do I tweak on NVDA to make it read each link on a separate line? Thanks.
Reminder I am hireable for coding work, and I can be paid in sex toys, cryptocurrency, or sex.
My rates depend on the kinda work being done, but I don't like worrying about things being transactional. Just, if it feels like a good trade, imma take it.
My usual rates are 50 EUR - 80 EUR an hour, for context.
But I reaaaly wanna be dommed by a hot domme, and don't mind doing something simple for you, like reverse engineering a small-ish Linux kernel driver and rewriting it in Rust or smth, if I get dommed enough,,,
Oh yes. Just had a Firefox update and now need to trawl through the config to check for things to set to False (or reset: they're like vampires for which the stake isn't hefty enough to cause permanent removal).
I am so tired of tinselly New! Improved! "functionality" that is various proportions of useless, destructive, annoying, and unwanted.
Now the car demands an update during which the engine will not start. Doesn't say *what* will update. At least it asked first.
I can recommend librewolf.net a fork of Firefox without the undesirable "features". I have been using it on Mac for many month and I am very happy with it.
I hate AI as much as the next fedizen, but as per the update to this article, the CPU/memory spikes some people experienced were due to a different issue:
Mozilla reached out to me on Aug 14 to clarify. Some users who installed the Firefox 141 update in certain locales did experience performance degradation, but it was caused by a different on-device feature, not Smart Tab Groups which debuted in the update:
“After receiving reports of issues that hadn’t come up in our testing [of the new semantic Url matching feature], we reversed the rollout and the performance issues should be resolved. We are working on a fix.”
(this is why links are more useful than screenshots)
@nev I honestly don’t see the problem with this use of AI. It’s a local model that does a small task. It’s not a chatbot. It’s like the millions of vision or sentiment analysis models we’ve used for years before the LLM boom.
@anselmschueler This is more like integrating AI for the only reason: integrating AI. Imho there is not a real reason for such a feature.
If you are using tab groups you are able to group the tabs by hand - and most of the time you already know a name for your group. Its like taking a sledgehammer to crack a nut.
@diabhoil @nev I can see that. I agree that it was probably added mostly due to AI hype and not reasoned consideration. I don’t think that means we should automatically hate the feature itself
@soc Exactly. I am more than willing for every tech feature to be irreparably harmed by association with AI (whether it uses AI or not and only purports to) in an all-encompassing effort to make AI toxic in all its forms (even imaginary ones).
@soc @diabhoil @nev I see. That’s certainly a possible strategy. I don’t think it’s something I would want to do, since it would involve me lying to myself or getting myself to hate features I don’t think really need to be hated. But as a PR strategy it might be effective.
@anselmschueler it's a PR strategy I've been pursuing from the jump and it's been very effective (if you look at any kind of surveys of what people think of AI — they don't want it, they think it tarnishes anything it touches, etc).
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@soc @diabhoil @nev yeah I can see that. I'll respect your strategy. not gonna do it myself. I'll hate specific AI instead. (Like the chatbot feature in Firefox, that is stupid)
@soc @diabhoil @nev Well, you can still hate it if you want. I just wouldn’t automatically hate it for that reason. I haven’t tried the feature. I could imagine it might be useful in some cases.
@soc @diabhoil @nev The core point I’m making is that we could imagine a world in which the feature was added without AI hype being the cause. (Such as if there was no AI hype to speak of) In this world, there would be no reason to hate the feature due to AI hype, and I claim (almost) any analysis of the feature “itself”, so to say, carries over to our world unchanged.
@soc @diabhoil @nev It would make it faster to categorise tabs if you have too many of them, by e.g. suggesting tab groups or suggesting tabs to add to a tab group. I think this is a pretty straightforward selling point. It, of course, would not help if you have e.g. fifteen tabs and want to make a group of five of them, but supposing e.g. you have five hundred tabs, it’d be a chore to sift through all the ones that have, say, cat pictures.
sequential non vegan food p0rn, contains meat and cheese
let's fill it with fresh mixed minced meat, chopped onions, chopped garlic, all leaves of the thyme, some dried marjoram, some more dried thyme, salt and black pepper...
The image features a man dressed in a formal suit with a white flower pinned to his lapel, holding a can of WD-40 in his left hand. He is using a red straw to drink from the can, which is unusual as WD-40 is a cleaning product and not meant for consumption. The background includes a statue and a wall with a warm, golden hue. The text at the top of the image reads, "If you can't drink WD-40, then why does it come with a straw?!" This text humorously questions the inclusion of a straw with a product that is not intended to be consumed.
Provided by @altbot, generated privately and locally using Ovis2-8B
The image shows a cat positioned in a narrow space between the carpeted stairs and the wall. The cat is lying on its back, with its belly exposed and its paws stretched out. Its fur is a mix of brown and gray, with distinctive stripes. The cat's eyes are open, and it appears to be looking directly at the camera with a somewhat grumpy expression. The background consists of the brown carpet of the stairs and the white wall, with a small white object visible on the left side of the image. The text at the top of the image reads, "Where could I position myself to become the most dangerous obstacle in the house.."
Provided by @altbot, generated privately and locally using Ovis2-8B
TeamAssimilation
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Nima
in reply to Davel23 • • •might take a little bit o' while. you got plenty of time to start that pot roast in the slow cooker.
check on it around 100,000 and give it a stir.
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in reply to fossilesque • • •like this
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Pyr
in reply to mushroommunk • • •Tuukka R
in reply to Pyr • • •bamboo
in reply to Pyr • • •I get what you're saying, but had to laugh at the use of "a little" here. The goldilocks zone in the solar system is roughly the between the orbits of Venus and Mars, and we're almost right in the middle of it, so "a little" is like 150 million km.
I would imagine that the first issue we would experience would be that the moon would be pulled out of Earth's orbit first and then we lose the ocean tides and the stable tilt of the earth. It would probably get worse from there.
Pyr
in reply to bamboo • • •Goldilocks zone is basically just where life can survive.
Even if we stay within the Goldilocks zone doesn't mean that most of the species alive today won't go extinct because it fucks up the seasons or the magnetic poles or tilt of the earth, etc.
DrWorm
in reply to Pyr • • •swab148
in reply to DrWorm • • •dalekcaan
in reply to DrWorm • • •"Thank god global warming never happened."
"Actually, it did, but thank god for nuclear winter."
𝙲𝚑𝚊𝚒𝚛𝚖𝚊𝚗 𝙼𝚎𝚘𝚠
in reply to Pyr • • •Cethin
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in reply to mushroommunk • • •unknownuserunknownlocation
in reply to fossilesque • • •Eheran
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in reply to Eheran • • •IrateAnteater
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wewbull
in reply to IrateAnteater • • •Right, but I don't get why this thread is full of people talking about collisions. Even if it was moving at the speed of light (it's not) it's still billions of years away.
It would just prove our theory of universe inflation to be incorrect.
ThermonuclearEgg [she/her, they/them]
in reply to unknownuserunknownlocation • • •I know you can't see this comment but maybe someone else will find it useful
Just like how a siren changes pitch when it's coming from a vehicle passing by due to the Doppler effect, the same thing happens to moving light sources due to relativistic effects.
Usually astronomical objects are redshifting because the universe is expanding and are thus receding away from Earth's frame of reference. Most of them are forever unreachable even if we could travel at the speed of light.
Something blueshifting means it's coming closer from Earth's frame of reference. In some cases, this could result in the galaxy colliding with ours, such as the hypothesized collision between the Andromeda Galaxy and the Milky Way
Scientific phenomenon
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)HakunaHafada
in reply to fossilesque • • •Zerush
in reply to fossilesque • • •LastYearsIrritant
in reply to fossilesque • • •If it's blue shifting from that distance, then it's likely some advanced technology is moving it in our direction.
There's not many other explanations for that.
onslaught545
in reply to LastYearsIrritant • • •Could it potentially be an object orbiting around the cosmic center that just so happens to have an orbital path that crosses us?
I have to admit that astronomy is what caused me to change majors, but that's because I stopped going to class when the lesson was, "This is a terrestrial planet, it's rocky," and my first exam was like, "If it's 5:45pm in Tanzina on October 15th, how many degrees is the moon above the horizon?"
LastYearsIrritant
in reply to onslaught545 • • •Since the speed something is moving away is dependent on the distance, something billions of light years away is absolutely not going to be moving towards us, regardless of its local orbits.
en.m.wikipedia.org/wiki/Expans…
increase in distance between parts of the universe over time
Contributors to Wikimedia projects (Wikimedia Foundation, Inc.)LastYearsIrritant
in reply to onslaught545 • • •onslaught545
in reply to LastYearsIrritant • • •Dicska
in reply to LastYearsIrritant • • •Let's suppose that for some reason it's completely normal, and it's just simply speeding toward us.
OP says it's billions of light years away. Doesn't that mean that we still have a few billion years?
tricerotops [they/them]
in reply to fossilesque • • •isnt andromeda gigantic in the night sky but weve got too much light pollution to see it normally?
anyway retvrn to alien
Evil_Shrubbery
in reply to tricerotops [they/them] • • •It is gigantic & very luminous but it's also just too far away to be really noticeable - on its own is just on the limit of the best of human eyes if there would be no other star in the sky (very dim, with the visible/luminous core being only about the size of the Moon or smaller - the full galaxy is 5× larger on the sky compared to Moon, but that's not comparable in luminosity).
Disregarding human pollution there are just too many starts from Milfky Way way closer to us.
🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮
in reply to fossilesque • • •So blue is moving toward you?
I was always a bit confused with the explanations in high school. But I also got a D in physics so maybe I'm just dumb.
Agent641
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •Blue shift, it's moving towards you, the photons are being "compressed" to a higher, bluer frequency. Redshift, the light is being "stretched" to a lower, redder frequency. Both only noticeable at significant fractions of the spped of light, relativistic speed.
Something ominous about the post is that a cosmic object that is moving towards you at a steady rate is consided "blueshifted" in the past tense, it's velocity is steady. If a galaxy is "Blueshifting" in the present tense, then that galzy is somehow accelerating at you, which is impossible unless it's under direct control by an entity, presumably a kardeshev level 3 civilization.
🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮
in reply to Agent641 • • •ProfessorPeregrine
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •deltapi
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •For example, tomorrow there should be more space between the Sol and Alpha Centauri systems than there was yesterday.
Our present understanding suggests that 'normal' universal expansion should not (in and of itself) result in anything moving towards us.
🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮
in reply to deltapi • • •Starski
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮
in reply to Starski • • •Zink
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •It's not just that, but it is unlikely that any star in our galaxy will collide with any star in Andromeda.
I think it's easy to think of galaxies as individual things, like these nodes in the universe where all the stuff is stored. But galaxies are incredibly vast and incredibly empty.
I love the video this guy did on the subject: youtube.com/watch?v=VsRmyY3Db1…
The part that stuck with me is that if you made the Milky Way the size of the United States, our gigantic sun holding 99.86% of the matter in the solar system would be microscopic -- the size of a red blood cell. And iirc, the planet earth would be all the way down to the size of a virus.
- YouTube
www.youtube.comZink
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •Yep. Space is expanding everywhere at once, but the effect is minuscule at the scales we're used to. And even at galactic scales the "speed" of expansion might seem like a lot to us, but it still isn't enough to overcome the motion of objects. I looked up some rough numbers to give you an idea:
The rate of expansion of space is 73 km/s/Mpc. So for every 3.26 million light-years between you and a distant galaxy, the space between you and that galaxy is expanding by 73 kilometers per second.
Andromeda's blue shift indicates it's headed towards us at 110 km/s. And in my non-expert head I'm thinking that blueshifted light must have already been redshifted by the millions of years traveling through space to reach us. So the galaxy's speed through space towards us when the light was emitted was considerably higher.
Andromeda is 2.5 Million light-years away, btw. So the cumulative distance of space between here and there is expanding at something like 73 km/s/Mpc * 2.5 Mly * 1Mpc/3.26Mly = 57 km/s.
But when talking about relativistic distances and speeds, basic te
... Show more...Yep. Space is expanding everywhere at once, but the effect is minuscule at the scales we're used to. And even at galactic scales the "speed" of expansion might seem like a lot to us, but it still isn't enough to overcome the motion of objects. I looked up some rough numbers to give you an idea:
The rate of expansion of space is 73 km/s/Mpc. So for every 3.26 million light-years between you and a distant galaxy, the space between you and that galaxy is expanding by 73 kilometers per second.
Andromeda's blue shift indicates it's headed towards us at 110 km/s. And in my non-expert head I'm thinking that blueshifted light must have already been redshifted by the millions of years traveling through space to reach us. So the galaxy's speed through space towards us when the light was emitted was considerably higher.
Andromeda is 2.5 Million light-years away, btw. So the cumulative distance of space between here and there is expanding at something like 73 km/s/Mpc * 2.5 Mly * 1Mpc/3.26Mly = 57 km/s.
But when talking about relativistic distances and speeds, basic terms regarding time and location don't always make sense.
psud
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •Milky way and Andromeda are close enough that expansion is too small to overpower gravity
Our local group is racing toward The Great Attractor but will never reach it as expansion is pulling it away faster than we're falling toward it
Davel23
in reply to deltapi • • •Galaxies are gravitationally bound, they do not expand in the same way as the universe.
deltapi
in reply to Davel23 • • •Davel23 likes this.
Sterile_Technique
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •It's the doppler effect, but with light instead of sound, and for the same reason.
Thing emits sound/light waves at a constant rate: sound/light waves hit you at a constant rate.
Thing continues to emit the same sound/light at the same rate, but starts to move toward you: sound/light waves hit you at a faster rate, causing the sound/light to turn higher-pitched/bluer.
Thing continues to emit the same sound/light at the same rate, but starts to move away from you: sound/light waves hit you at a slower rate, causing the sound/light to turn lower-pitched/redder.
tetris11
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮
in reply to tetris11 • • •Bane_Killgrind
in reply to 🇰 🌀 🇱 🇦 🇳 🇦 🇰 🇮 • • •molten
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in reply to molten • • •AeronMelon
in reply to fossilesque • • •like this
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in reply to AeronMelon • • •- YouTube
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Genius
in reply to 𝔄 𝔰𝔢𝔫𝔱𝔦𝔢𝔫𝔱 𝔭𝔦𝔢𝔠𝔢 𝔬𝔣 𝔠𝔥𝔢𝔢𝔰𝔢 • • •AeronMelon
in reply to 𝔄 𝔰𝔢𝔫𝔱𝔦𝔢𝔫𝔱 𝔭𝔦𝔢𝔠𝔢 𝔬𝔣 𝔠𝔥𝔢𝔢𝔰𝔢 • • •Nikls94
in reply to 𝔄 𝔰𝔢𝔫𝔱𝔦𝔢𝔫𝔱 𝔭𝔦𝔢𝔠𝔢 𝔬𝔣 𝔠𝔥𝔢𝔢𝔰𝔢 • • •ThisLucidLens
in reply to fossilesque • • •Mr. Satan
in reply to ThisLucidLens • • •Armchair expert here
From my understanding blue and red shifting is mostly related to movement. Like when a firetruck run past you with sirens on, you can hear change in pitch when compared it moving towards you vs away from you.
It's a similar effect with galaxies, red shifting means that after the light was emitted the space between us has increased and the light kind of stretched out to longer wave.
Now anyone with more knowledge on the subject, please correct me.
HereIAm
in reply to Mr. Satan • • •WorldsDumbestMan
in reply to HereIAm • • •Now imagine if it did blue shift.
youtube.com/watch?v=opvuEVpl_P…
- YouTube
www.youtube.comwewbull
in reply to Mr. Satan • • •You're missing the point that the universe is expanding uniformly. That means two points acceleration away from each other is dependent on their distance apart. The further they are from each other the faster they accelerate from each other.
So GP is right. We measure red shift and infer distance.
TankieTanuki [he/him]
in reply to fossilesque • • •ZkhqrD5o
in reply to fossilesque • • •