Northernlion tries to comprehend the expansion of the universe
ฝัง
- เผยแพร่เมื่อ 30 ก.ย. 2024
- its actually quite simple, i guess you haven't consumed enough richard and mortimer media 🤓
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Twitch: / northernlion
TH-cam: / @northernlion
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Stream date: 04-03-2023
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#northernlion #clips
Lil bro is an only child, you can’t expect him to understand relativity.
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Watching NL attempt to understand relativity, tell chat they're cyberbullying him for not detailing it to him in a single Twitch comment he probably wouldn't even read, and then interpreting the best answer he got as him literally being the center of existence itself made my week lmao. Truly the thinking man's streamer.
Cepheid variables are the best way to understand. They pulse in brightness at a constant speed. If we see one far away and it appears to pulse more slowly, that means the space in between us and the Cepheid variable is stretching. Like the Doppler effect!
@@DadSharkWow, that's so succinct and straightforward. Thanks for sharing!
Why doesn't everyone lead with that? 😂
Red shift = Light version of doppler effect (like cars sound different driving towards vs away from you)
But looking out from Earth, everything is red shift. Everything is moving away from everything else
Aka one day you might move out of your parent's basement
what if everything is just a little bit red (bit stealer)
Not everything is moving away from everything else but generally yes
@@Tomatoffel i mean everything on average is moving away from everything else. things on a local scale can still move towards each other, that's why galaxies exist, but those galaxies are moving away from each other unless they're close enough to be strongly attracted (e.g. our galaxy and Andromeda in a few more billion years) in which case for the sake of astrophysics, those two galaxies are one celestial body, which is moving away from everything else
@@littlesnowflakepunk855 that was what I was referring too
@@incription An important detail is that the further away something is, the more red shifted it is. Implying that it is moving away faster. Which is exactly what you would expect if every point in space was expanding at once.
I don't know what made NL think that it was a good idea to depend on chat to relay to him college level physics.
Also, I've heard of the expansion of the universe refered to as a property of the void of space, just so people can understand it better. You can look at the nothingness of space as expanding, while the regions where matter "inhabits" as not expanding.
@Wumbo Jet absolutely, even if it's not necessarily true it's so much easier to think of it as outer space growing.
Omg it's Asian Daniel Navarro
+2 to the one guy who typed "Google edging" into chat.
picture a loaf of bread and put a couple pennies in it in any locations within the bread. As the bread rises, all of the pennies move away from each other, but the rate at which two pennies move away from each other is faster for pennies that are farther away
Couldn't you have used something edible like raisins / chocolate chips for this analogy? Using inedible objects when you had control over the analogy is upsetting to me.
@@roborob4000 Stop eating his analogy
It's my bread, I pictured it, and I don't want to add any pennies!
Yea I think NL gets that, but the part that he's hung up on is that the universe doesn't have a "center" like the bread does. Two pennies x-distance apart near the center move apart slower than two pennies x-distance apart at the edge. But the universe has no "edge", so it's really hard to understand. 99% of twitch chat doesn't truly understand it, and neither do I.
@@larrydigger461 If the two pennies in the middle are x-distance apart, they move away at the same rate as the two on the edge that are x-distance apart, so long as both x's are equal (assuming the expansion is evenly spread, which it should mostly be).
Shoutout to the chatter who dropped "you are the center of a protractor" I'll give that reference a +2 7:40
NL just dismantled the whole field of astrophysics in under 15 minutes, Steven Hawkins or whatever must be feeling pretty pretty dumb RN
"there is no edge"
tfw the universe is a dominatrix
She call me uni the way I expand on her verse
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I wanna smoke the shit that made Zach John's son.
This was one of the funniest bits he's done in ages. Loved it
This video made me realize how much i love this mf. He is a comedy genius
early on he actually hit on something kinda lmao. There's an assumption that where we are is not particularly special compared to other places in the universe (called the copernican principle, which is part of the more general cosmological principle) that a lot of stuff is based on. 'we just happen to be in a super weird part of the universe' IS a possibility that would break a lot of theories (although there are alternative theories that don't depend on it). regarding expansion, empty space is expanding but stuff that's held together by forces (e.g. the solar system with gravity, solid objects with electromagnetism) isn't expanding because the attraction cancels out the expansion.
and this is why i do not understand the big rip theory... solid objects are not expanding, full on galaxy clusters are actually coming closer... so why would there be a far future where the big rip happens?
alternate title: "Nothernlion tries to comprehend the concept of relativity"
google space edging inflation
While every bit of space is expanding, things on earth are “locked in” due to forces of gravity, chemical bonds, what have you. Plus, each meter expands so little that we’d never be able to notice just looking at things on earth, but when you’re measuring distances between galaxies and the like, there’s billions of meters so while each meter individually is unnoticeable, that tiny change * a billion is suddenly more noticeable
Plus that "new" space is now also expanding same as the "old" space was and still is, so the expansion is accelerating.
I understand that part, but what I don't understand is how the universe could not be infinite. I can't understand how the universe could have an edge because that would mean a division between one portion of space and another, in my mind. And if the universe DOESN'T have an edge, then I don't understand what it means to say it's expanding (does it just mean "everything is getting further apart"?)
@@slynt_ "does it just mean "everything is getting further apart"? ", correct, the observable universe has an edge based on each individual observer (my observable universe is slightly different to yours) but the entire universe it's unknown whether it's infinite or not but most think it is. (if it isn't it's probably due to being kinda like a sphere where if you keep going in one direction you come back the other way, rather than there being an edge).
@@mattoleary811Is this really true? I thought the prevailing opinion was that we have no way of knowing.
@@starseeing we don't have any way of knowing, but I believe certain theories about the nature of reality assume that there isn't a boundary, because some physics kinda breaks down there. Like, what would happen if you walked into that boundary? This doesn't rule out the possibility that the universe is bounded in size, but doesn't have a boundary (e.g. by wrapping around). I believe what precisely the topology is outside the observable universe is a firm 'no idea', with a bonus 'we don't expect to ever know'
Hearing an Atheist talk about how he thinks cosmic science has some gaps in our ability to literally comprehend anything relating to space blew my mind. Man not only doesn’t believe a God or Gods created anything, but also doesnt think any scientific reasoning would make sense of any of it.
He’s basically saying nothing we believe or understand is real, and he’s okay being gone when he’s dead.
Also, this context makes his comments about getting himself killed to save his daughter honestly crazy meaningful, cause for him, that’s it.
Physics is constantly advancing and changing. Physicists 'know' things but they do not know for sure, since they operate in a paradigm that can shift. It's actually a sign of a healthy science that its paradigms can shift as we experimentally encounter new anomalous data.
people spamming WHOASKED while NL is the very one who asked ICANT
I like to think of it like this. Imagine a 2D figure on a piece of paper. The figure can only see the 2D space, length and width, it is stuck to and cannot see us observing it from our 3D view, height, over it. If the figure were on piece of paper and we rolled it so that the two tops connected, the figure wouldn’t be able to perceive a 3D folding of the paper because it has no conceptualization of 3-dimensionality. However, there would be some hints that something funky is going on. If the figure traveled all the way around only moving in a straight direction, it would end up back where it started. It would have no idea why, but it would be clued in that there is more than meets the eye than the 2D space it is existing in. That’s probably what the deal with us is: our 3D space is being manipulated by something that is occurring in a 4th dimensional manner, likely space-time expansion, and our perception of it is through that spacial expansion.
Fire thumbnail once again librarian
Humans lose concept of size and numbers once you get around 1 million. It's easy to picture 1000, 10000 and maybe 100000 pennies. But once you get to 1000000 you gotta start thinking real hard.
One light year is about 1.22*10^19 pennies large.
The universe is 13.8*10^9 light-years.
The universe is 16.974*10^28 pennies wide (and increasing).
ur mom is 16.945*10^29 pennies wide (and increasing)
Yeah right bro, if the universe is so big, why won't it fight me?
@@jafidayman4832 Obviously cuz it knows you're so tough and mommy's special boy
the universe is mother to all of you, so of course she's expanding. 😶
Asking twitch chat about general relativity is such a bad idea. He brought this hell upon himself. Also, we aren’t expanding, only places where there isn’t a lot of mass density (empty space between galaxies)
I had to look it up because I was certain that spacetime was what was expanding and, therefore, objects should also be expanding, and it looks like we're both right.
"Bound objects" are subjected to the same expansion as everything else in the universe, they just don't expand because the fundamental forces overpower the expansion rate.
What I never understood is that the universe is infinite, right? So how is it expanding? Or is it just that the whole universe is not occupied by something and stuff are simply moving further away into the infinite universe? People just say that the universe is expanding because it's easier to say that than "The material world is separating into the infinite expanse of the universe".
Empty space is growing, but the forces that hold physical objects together and pull them toward each other (gravity, magnetism, chemical bonds) keep this small growth from affecting us. But there are galaxies we could never reach even at light speed because the space between them and us is growing too fast. And we don’t know for sure whether one day the expansion might overcome those other forces and disassemble every atom.
Lil bro has a degree in biology and doesn't understand how scientific research is verified
I haven't laughed this good in a while.
This was such a ride in yesterday stream, he brought the subject so often that i thought he was about to lose his mind
Fun fact, there has been recent evidence to suggests the measurement that determines if the universe is expanding is inaccurate. It is always the right thing to question science since answering questions is literally the purpose of science itself.
there is no center but also everything is the center. Whats not clicking.
The distance between you and the monitor is growing, but the distance from the monitor and the wall is also growing, so the distance between you and the wall is growing at the combined speed of both
Not how it works, expansion of the universe doesn't apply to gravitationally clumped stuff, like galaxies. So our galaxy isn't expanding, but space between galaxies is
@@husamismael8926 I'm trying to develop intuition as to how it works. Yes at small (relatively) scales other forces keep things together, but that's the idea for why distant things are expanding away from you faster then nearby things
Did you know voyager 1 and 2 reached the point where radio communications is impossible. Last transmissions
Great thumbnail
chat is full of geniuses!!!
Indeed, I am one of said genuis's
If everywhere at once grows the tiniest amount, then on the most massive scale huge distances are created from the sum of all tiny expansions.
Librarian, genuinely: How the hell do you find these tweets NL references to show them on screen? I don't really use twitter but isn't it impossible to find anything on that site?
too much time honestly, i dont even know how i pulled this one off because when he retold it he completely reworded it
Twitch chat is not the correct medium for receiving answers to these questions.
Incredible thumbnail
chat is butchering this explanation so bad
Basically, gravity or some similar force is making all celestial bodies SLOWLY move away from each other, expanding the space between objects, eventually what remains of the earth will sit in an empty pocket of space just like every other celestial body, you won't be able to see stars or even the moon maybe after long enough, but that's BILLIONS OF TRILLIONS of years away, the effect however, has two effects i'm aware of.
1) there is a specific area around earth that is realistically observable to us, over time, objects at the perimeter may move beyond our observable sphere, there are things outside this sphere we will NEVER know about, or even visit.
2) there is also a sphere of potentially traversable area around the earth, because eventually, it takes too long to get somewhere reasonably within a lifetime or something?
we know because over time, I'm sure some things have disappeared from the edge of our view, and perhaps other bigger objects have only seemed to grow smaller as they disappear from our field of possible observation ( like a celestial body that use to look much bigger, but now looks smaller because we're seeing less of the surface area due to part of it disappearing for us )
The Joel looks like he's swimming at 5:35
idk you've made a video on NL's "one must imagine sisyphus happy" bit and I don't if he making reference to a 1940s french philosophy book or also committed convergent evolution like with the prozd
I guess it's like an ant on a slowly expanding balloon. The ant will be every so slightly stretched, though it's structural integrity holds it together so it doesn't in fact stretch or change size, even though the medium it is on expands.
This made me mald. +2
Idk if this is right but u can’t imagine a basket ball court and the outta bounds line. That line is stretching out. Now space exist outside the line but our universe is within the box
I love that NL finish this dumb joke doing the Abed speech from Community
I like to imagine that instead of enelle it’s the dredge fisherman sitting at a dock while his fish rot having an existential crisis about theoretical relativity
Watched this live but I should probably watch this clip just to be sure.
More "likes" then an episode of keeping up with kardashians episode.
Tired light theory is definitely a theory for being a reason for redshift.
poor vip daniel copy pasting a whole essay just to get dono walled🤣
We know its expanding because its easy to tell. Because everything is moving away from eachother at the same speed.
Not at the same speed. That's a very important detail. The further something is away from something else, the faster they expand away from each other. As one would expect if every point in space was expanding at once.
there is a fine line between a twitch streamer and a flat earther.
NL do be walking that line tho XD
(in all seriousness, it is pretty hard to explain this shit in a twitch chat that's going this fast XD)
I do actually wonder if being on twitch (as a viewer or streamer) makes you dumber, or if its just easier to find likeminded people now
@@CS0723 twitch? Probably not… now twitter, that one kills off brain cells at an alarming rate xd
idk man have you heard chiblee talk? Like thrice in one of the recent vods he was talking about eating shit so
@@CS0723 you know... you make a good point XD
The best explanation for the expansion of the universe is like zooming in on a grid
theres no edge and every point in the universe is the center
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That stream was purely psychotic
Best laugh I've had all day. 😂
God-tier thumbnail and somehow I don't see a comment about it
Once again I'm reminded that he's maybe the smartest Twitch streamer but that doesn't mean a whole lot, like at all.
as someone who also doesn't get this shit at all, i appreciate this a lot.
Hope this is a bit
L+fell off
Repeated bit🥱
Do you remember which video had the original bit about the hubble telescope?
@@danielalorbi nope, i was trying the remember when i wrote my comment but i don't even remember the game
me when me and my friends talk about something more than once