Where Was The Big Bang?
ฝัง
- เผยแพร่เมื่อ 10 ก.ย. 2024
- The universe is expanding - so does that mean there's a center from which everything is stretching outwards?
Created by Henry Reich
Thanks to Nima Doroud for contributions.
Music by Nathaniel Schroeder / drschroeder
MinutePhysics is produced by Neptune Studios LLC
neptunestudios...
Support MinutePhysics on Patreon: / minutephysics
Link to Patreon Supporters: www.minutephys...
Website | www.minutephys...
Merch | dftba.com/Minu...
Twitter | / minutephysics
Facebook | / minutephysics
MinutePhysics provides an energetic and entertaining view of old and new problems in physics - all in a minute!
Mom: "You're not the center of the universe!"
Kid:"Well...according to this video..."
you are still not in the center of the universe
@@dimitrispapadakis2122 actually we all are the center... 🤷♀️
im the center and i know it...
im the center and YOU KNOW IT..
butt i also know ur the center... 😂
People are missing the point. Except for objects that are gravitationally bound, everything in the universe appears to be moving away from everything else meaning that space is expanding evenly everywhere. If this is the case, there can't be a center from which everything is expanding out from.
the question wasn't "what is the center of the universe", it was "where was the big bang". those appear to be similar questions and would appear to have similar answers, but i think they don't. the way i see it, the first question has the answer of "nowhere". the second, "everywhere".
This doesn’t disprove the Big Bang Theory. Let me put it this way, whichever planet you are in our solar system, it will look like the other planets and the sun are orbiting your planet. But that doesn’t mean that nothing in the solar system is orbiting each other.
That didnt answer the question, sadly.
The answer is that there was no beginning point, or at least not one we can ever find, no matter how advanced our technology becomes. When the Universe began it was infinitely small, so without any physical size, it is impossible to determine where it is in our (sort of) infinite universe.
Peregrine how o u know it was infinitely small? maybe it was an atom across, then that atom is the where the universe began
aceXXofXXhearts because no space exhibits before big bang.
Parameth Ratnasakha no, no space outside the big bang exists
same as inside, BEFORE the big bang. It's singularity. In fact, there is no matter before big bag as well, only pure energy exists.
HOW TO DODGE A QUESTION IN ONE MINUTE
He answered it? by explaining how certain things literally can not be the "centre"
***** Well that's not and all but he never stated where it was.Just stated how each area could be a center of th universe.Didnt really answer it
Hououin Kyouma If one really wants the answer to "where did it happend" then I am sorry but no one knows.
+Hououin Kyouma space as we understand it didn't exist back then. the question is undefined.
it's a bit like asking "when was purple?" sure, could sound logical, i'm asking what time was purple. but the question is undefined and means nothing.
Yal Rathol I feel like if we are able to somehow calculate or find feasible evidence of how old earth and the Big Bang is.Im sure those questions aren't beyond our reach.We just don't have the technology as of now.I'm still trying dying to figuring out what is the smallest thing in existence beyond a atom and beyond that etc.There has to be a source within reason.
I'm not special?! But my mom wouldn't lie to me right... RIGHT!!!
She would not lie on basis of what she has been told........ The lie is centuries ago
Lol
You were too close minded to see the universe from different perspectives.
This time, forn your mom's :)
But where the fuck was the big bang god damnit.
Eli Kelley Everywhere! The point is that to answer where an explosion happened, you need to find where everything is moving from. But no matter where you go, YOU seem like that point! So, the big bang happened everywhere.
TheBigMack Jackable The better answer is that it is not known where the big bang happened in the universe.
Saying the big bang happened everywhere is like saying the house fire started everywhere since in relation to the fire everything is on fire. This is wrong, detectives will be able to figure out that the fire started in the kitchen from the stove. The house did not all just combust at once.
If the big bang happened everywhere then that mean there was no big bang essentially, the universe was just snapped into existence.
No, the question that minute physics was supposed to answer was "where in all the space of the universe was the area in which all the space of the universe expanded from, i.e. where was the big bang?" It didn't do that, it just told us that everywhere is the center there fore nowhere is the center, which didn't answer the question assuming the was a big bang that started smaller than an atom and EXPANDED into the entire universe. Do you get the picture, minute physics did not answer the question.
The question is flawed. You have to understand that there was no before the big bang. And the Big Bang begun where space-time begun. You can't put a location on where space-time begun because space-time defines what a location is. Without the big bang, there would be no notion of where or when. Think of the universe like a giant sphere. The sphere grows larger as the universe expands. From any point on the sphere while it grows, every point around it grows in every direction opposite the point. This would make it the the "center" of the sphere. But the sphere started from it's actual physical center, rather than from a point on the sphere. So there is no center of the universe, but there is a point on the universe as a sphere where it began... but that center cannot be defined as a point on the sphere (where we exist). If I have conveyed my thoughts correctly, you will understand that there is no center of the universe, and the universe expands from it's center (which does not exist in space-time).
To more easily digest the fact that there was no such thing as location before the Big Bang, think about it in relation to time. There was no time before the Big Bang because the Big Bang was the birth of time. The same goes with space. There was no "where" and there was no "location" before the Big Bang because the Big Bang was the birth of space and location. You can't put a location on the birth of location, because there is no such thing as location beforehand. The Big Bang technically did happen everywhere because, going back to the sphere, the sphere began when it was it's tiniest, when there was only one point that existed on all sides of the sphere. That point, the only point, would be where the universe began, which at the time would be everywhere. As the point expanded, more points existed, all of them being from the first point, all of which are the center of the universe everything around you is expanding like marker dots on a balloon, all of the dots are the center of the universe to itself, all of which are the epicenter of where matter began... so all points in the universe are where the Big Bang began because all points of the Universe existed as one when the Universe was born.
So... The big bang happened everywhere.
+Joey Sofia that can't be right because the sphere has an edge the universe has no edge. the bing bang happened everywhere because it was at a point where the entire universe was condensed, but then that means space time didn't have a begining, like Henry said in the video before this there was no begining so that means that space-time is infinite, so is the universe, and, therefore the big bang happened everywhere to everywhere
kawaii Senpai By the sphere comparison, i meant the surface of the sphere is the universe. It has no end, but is not technically infinite.
math.ucr.edu/home/baez/physics/Relativity/GR/centre.html
for more information
This video is obviously false, I mean, they don't have cats on the moon...
Alex93435 I know right!
actually they do
Someone has clearly never been to the secret lost pet city on the moon
*puts on tin foil hat* that's what YOU think...
This episode didn't tell me anything.
Me neither. I want my money back!
It told you plenty. It's not his responsibility for you to understand it.
Where was the Big Bang? The answer is that although logic might point us to a singular point and that point should be obvious, the truth is that it is not. It is relative to your perspective, literally your frame of reference. Meaning, the location is not determinate in a meaningful way. We would need to measure from outside the Universe, a proposition that may not even make sense.
You didn't actually explain anything here other than the point that everyone who thinks they're the centre of the universe is an idiot.
What you should have said is that the universe is expanding like the skin of a balloon being blown up, so there is technically no centre.
Because the most simple way to imagine the universe's expansion is to think of it drawn on the skin of a balloon. When you blow it up, everything will separate apart at an equal rate from each other, so there will be no centre, even perspective wise.
***** hello am spoderman. n 2dai am gunna teech u 2 hav sweg.
***** You got to know how to spell it first, then the teaching begins
Mazen Kudsi I don't think you know what I'm quoting man :P
Patrick Mahoney nice one literally reiterating everything I just said TWICE haha :P
Why does this awesome video have so much negative votes?
Creationists, damn Creationists. They read the title of the video. They just clicked on it obviously just to down-vote it. They didn't even bother to watch the video.
Deist btw
***** he did kinda in a roundabout way. he pretty much said "fuck if i know and theres no way anyone can know"
***** He did answer it, but he didnt give the answer most wanted to see. Mind you it is a very difficult answer to understand in a normal common sense frame of mind, but the universe doesnt have to work by our perspective lol. Sadly that fact is enormously difficult for most to digest. at all.
***** Shkotay D He really did not answer the question at all. What he said is that it did not start at Earth's location.
There is kind of an answer to this question, it's long and very theoritical, and obviously no one can be sure, but that's not the answer at all.
Steam1901 The point literally is everywhere though, and any one place can say it is the centre if it wants. It is an irrelevant thing. In order to ask where the point was when it first started to expand, it has to be in relation to something else, and there is no way of making such a comparison. But from the inside, the point really is everywhere.
So where was the big bang?
everywhere/nowhere at the same time, so it doesn't matter were you go, you're always in "the center of the universe"
***** you can't pinpoint the exact location of the Big Bang because everything which exists expanded from it. The only way you could find the center is if you define the parameters of the universe or quantify what exists outside of the Universe. (The space that contains the Universe)
+Wolf Pytlak NOOOOO, youre in the center of the Observable universe.. not the universe itself.
Obviously, from that video it's clear the big bang happened somewhere a little east of Albuquerque.
He answered the question by denying its premise. He is basically saying the big bang did not happen in one location so we cant figure out "where" it happened.
people want to know, where is the singularity in retrospect to the earth, in other words, if we could "rewind" the universe - in which way would the earth be pulled toward the singularity? The answer is we don't know but there was a singularity so if we could rewind, we would move in a DIRECTION toward the singularity and we'd even be able to determine where the singularity is because some matter would have to be closer to the singularity than us, if we got sucked back into the singularity before the andromeda galaxy than you can reasonably say our galaxy is closer than andromeda, which means there is a PLACE where it all happened.
yes, but due to the expansion, that "point" is probably several million light years across by now, and is a random point in the middle of the void from any perspective but a god's.
think outside the box ... the singularity does not exist in a single coordinate inside space and time/spacetime, the singularity is the whole universe (i.e. everything) shrunk down to an infinitesimally small point of dense matter and energy. outside this singularity is nothingness (as far as we know at this point ... we would have to know what is inside a black hole to know what nothing is or something like that, idk) so relative to our position in spacetime, that information is irrelevant because our position and every other reference frame/position in spacetime would be INSIDE the singularity that was the big bang
GreenLightMe except if it's infinite
It was everywhere
If we would rewind the time, the opposite of what is happening right now (inflation) would happen
We would be what everything cramps into, but only from our point of view
there is no "singularity"
that term.. unfortunately is literally "GOD"
as in science ACTUALLY DOES NOT KNOW THE ANSWER so there for a SINGULARITY...
literally thats how and why and when that term is used..
so as a atheists and a huge fan of the scientific method.. i think this term and how its used is utter garbage and just reminds me.. even logical and reasonable people can still resort to silly religious like thinking.... "WE DONT KNOW.. WE DONT HAVE THE ANSWER... PHYSICALS BREAKS DOWN AND WE DO NOT HAVE THE TOOLS TO GO ANY FURTHER.. THEREFORE SINGULARITY.."
BULLSHIT
The answer is: that question is meaningless.
no dude, the whole point is that there is no center of the universe. the big bang happens when all of the matter of the universe is reduced to a infinitesimal size, the where of that question is irrelevant because it is not a single point inside the universe, it is the universe itself reduced to that size. the universe expands not from that single explosion that happened way back when, it expands because all the planets and shit in the vacuum of space are moving away from everything around it. in short, space is expanding from every reference frame so then every reference frame appears to be the center of the universe
How did this videos answer the title like wtf
+HgKron It was answered because he said that there isn't a definite point. It could have expanded from anywhere, it wouldn't change a thing. There is no center.
Just run the expansion in reverse in your head, and you'll find that this vid answers the question exactly right.
He did explain it. The Big Bang happened everywhere at once (see his previous video where he explains it should be called the 'Everywhere stretch').Look at it like a balloon: if you draw points on it and then blow it up. It would look like they are moving away from the center, while, if you take another point, you'd have the impression it all moves away from that certain point. Your frame of reference is everything.
The center of the universe can only by everywhere if the universe is truly infinite. If it's not, we would need to somehow see the universe from the outside to determine where its center is.
Could we not ask where the center of the observable universe is?
IdentityDM The centre of the observable universe is earth. Because the observable universe is just that part of the universe that light has had enough time to travel to earth so we can see it.
auspolk
that could be extended to say the center of the observable universe is you.
to me, the center of the observable universe is me
Which is actually impossible to accomplish considering the fact that the Universe itself is enormous.
the Universe doesn't have a center. but from our perspective we are the center of the universe
title should be "are we the center of the universe?"
Henry, I love your videos. Please make more and make them longer. Your videos are a way that is so much more interesting to learn Physics.
Hi, know this is after 8 years, but if you haven't seen it yet, Henry has a video called "A better way to picture atoms".
this is the 100th minute physics video ... Congrats Mr.Henry!!
Is it me or did he not answer the question?
it's you.
***** Didn't you just watch the video?
U didn't answer your question
He did answer it by saying that from our point of View the earth was the center of the big bang, and this means every other point of view is the center of the big bang, "it's the universe's way to make us feel special" , so the Big Bang happened everywhere, that point where it started from was everywhere.
I have an idea. What if the universe could be described as an sort of four dimensional sphere where one dimension is the time dimension and the other three are our common everyday x, y and z dimensions. This could be hard to explain so ill try to describe the same thing with an three dimensional (one time and two spatial dimensions) universe where an sentient being in it would observe the universe as an only two dimensional circle but an being from our universe standing outside their universe (however that would be possible) would see their universe as an slowly expanding universe where it would be an two dimensional plane wrapped around an center from where time began (and possibly where and when big bang was) thus making the center of origin nowhere on the two dimensional plane. one good metaphor would be a dotted balloon where the surface would be the universe and
the dots would repesent galaxies (or galaxy clusters) and then inflating the balloon. the balloon would expand and the dots would separate and move apart but there is an center of the balloon as observed by any person seeing the balloon. but the center wouldnt be on the surface thus not being in the universe anymore due to that the balloon would expand away from the center of origin. The same thing could go for our four dimensional universe but its hard to use the balloon methaphor because our minds couldnt imagine an four dimensional sphere. So if this was correct then the place and origin of the big bang is not in our universe... Well not anymore atleast...
It could, but as we weak-minded humans (in one relative) can only comprehend three. According to string theory it could be 26...but then again, that's just a theory. It could be infinite...*Mind commences blowing up*
For starters, there ARE three spatial and one temporal dimensions, so if you want to invoke some sort of higher dimensional analogies, you'll need to add another dimension in. You're probably thinking of a sphere in FOUR spatial dimensions (and keeping one temporal dimension, of course).
While it is difficult to picture a 3-sphere (the name for a sphere analogue in a one higher dimension than the sphere we know), its mathematical properties are well known.
What we DO know is that we don't need to invoke higher dimensions in order to picture expansion. In fact, if what you said is true, then there should be measureable curvature in the 3 spatial dimensions that we know of - but the latest evidence suggests the curvature is either negative or zero, both of which is in conflict with a 3-sphere.
This is the sickest physics burn I've seen all year and you did it in under one minute. Hot damn.
We know we're the center of our observable universe. :)
This it more "Where wasn't the Big Bang?" than "Where was the Big Bang?"
Answer, everywhere.
"where was the big bang?"
"yes."
The Big Bang was the begining of the space, so it happened *everywhere*
So....This video didn't answer the question in the title....
It may not be clear, but this implies that it was everywhere.
Well, Henry explained it right, but by reading the comments, no one was listening or they didnt understand :( I thought it was simple, but maybe he can do another.
After watching this three times I still feel he didn't actually answer the question. He gave a great detailed description, but no definitive answer. Occasionally you can read a comment here which brings up a theory to further add to the possible answer. However in all actuality we're still missing a few pieces of the puzzle to even call the Big Bang definitive. It's just widely accepted because it makes the most sense mathematically.
qweezark Nope, he answered it. You just have to read a few more other descriptions of this questions. It boils down to "the big bang was everywhere and there is no centre, cause every place in the universe can be seen as the centre, but if you shift views, then everything is also expanding away from that new point. And so on, and so on".
There is no centre it expanded from. The big bang is everything, and all matters placement in the universe is relative to change perspective the instant you view it from another spot.
He said it all, just boiled down a lot more. He cant tell you there is a real, fixed centre, cause there isnt one. He said as much.
qweezark Oh, and since the recent gravity waves finding, they have direct evidence for Guth and Lindes expansion of the universe, which in turn is itself direct evidence for the Big Bang. To be fair it will need a lot of confirmation to be taken as law, but the team did a LOT of work to rule out alternative causes as well.
Sixty Symbols did a great review of the work, and pointed out this needs replication, but remarked that the BICEPS 2 team did a hell of a job in making sure their case was tight. Aside from actually being there for it, they have the certainty they are looking for in that matter.
I'm sorry... He may have said "There is no center", but does not imply that it is everywhere. Before it expanded it was compressed into a single point that physics as we know can't explain. Once we find proof that multiple "Big Bangs" exist, either in parallel or series, Then it'll be definitive.
qweezark Physicists already have analogs for such an event known as "black holes". There is also no law in physics saying that there is a bottom limit that matter and energy can be compressd into. As many have said including Hawking "whatever isnt denied by the laws of physics happens".
You are also talking about proof of the multiverse. Lets work on this one first before going onto other ones ;) As for this one, the gravity waves finding is about as dead on as you are going to get aside from actually being there the moment it happened. That is essentially direct proof. There are MASSIVE amounts of indirect proof demonstrating an expansion from a point.
You also misunderstand the concept of the expanding universe. There IS no centre, unless you want to say it is everywhere. From our and other planets or galaxies points of view, any of us can say we are the centre. This isnt easy, but our common sense view of the universe is the wrong one. The physics view of the universe is the right one, as bizarre as it sounds.
Listen to the video again a few more times and you may get it.
3643 people did not get it.
43 people did not get it in the last 2 months.
That's why so many people hates physics at school... if they cant even get this very simple concept, more complex stuff must seem like nonsense to them.
but that is not the point! The point is on top of there head!
They get it. They are just religitards.
The title of this video is misleading. There is no "where" before the big bang started because there is no space and time to say "where".
everything is being pushed away from eachother in every direction, because the fabric of space itself is the thing thats expanding. i guess you could say that the distances between us are expanding
So where did the Big Bang occur?
Everywhere.
ok then, thanks for it and sorry Henry,I couldn't understand what you meant by "everywhere" :P
Sorry MinutePhysics that people (with an IQ below their shoe size) disliked this video, because they couldn't understand it...
where was the big bang?
yes.
no, seriously. that's the answer. the answer is yes.
Judging by some of the confusion still displayed in many of the comments, I'd like to request another follow-up video clarifying the difference between the term "universe" and the locationally dependent term "observable universe." That video could address how spacetime expansion results in a radius beyond which recession velocities all become greater than the speed of light.
This video deals nicely with the "no center" idea. What I'm recommending is one that deals with the concept of "no edge."
I really love this channel, I learn so much in such a short time while staying entertained the whole time.
I actually liked how this video was so short and easy to understand.
Great episode because it is a really simple concept that a lot of people just do not comprehend... Often they think they do, but they don't. It is a huge stumbling block to understanding relativity.
For anyone complaining, it isn't like it wasted much of your time. This is minutephysics after all!
Could you answer the question about how electrons get their energy to move around the nucleus? Thank you.
The idea of this video is to show that asking "where" it happened is a question that doesn't make sense if you want "where" to apply to a single place in space.
"we're not" - I love this :)
Fascinating! Now, where was the big bang
For all those still asking, technically, the whole universe was the "center of the big bang". The primordial "dot" that gave birth to the universe was the "center of the big bang", but since that "dot" was the entire universe itself just scaled down to an infinitesimally small space, the whole universe was the "center of the big bang".
Galaxies are moving farther away from each other, and at an increasing rate. If this is because of dark energy, is there enough energy for space expansion to accelerate to the speed of light? If so, would the laws of the universe break down? What would happen to photons? Since they can't out run space, they will never come in contact with anything. Would their energy be conserved? Is dark matter being created constantly to fill the void between galaxies?
Sorry for the long question, I hope I am asking it correctly.
This is called "the big rip"
I think he's explaining that just because the universe is expanding away from any given point does not mean that the center of the universe is "everywhere." Rather there is no center to the universe because the distance is all relative.
The answer is:
Everywhere. There was no space outside of the big bang when it happened. All space was in the single point that expanded at the big bang.
I think, the way they show how every point looks like a center, actually gives a hint on the answer. Its about particles, photons in particular ;)
Just because everything in the universe is moving uniformly away from each other doesn't mean "the big bang happened everywhere." It did happen at a certain point (the center of the universe), and this video does not answer that question.
Thanks for telling me I'm *NOT SPECIAL*. It made my day.
This just arises a huge bag of questions.
Maybe you should explain why/if there are more stars visible in one particular direction. That would intuitively be the direction to the center, but I'm sure it's not. :-P
Since space time itself started from a singularity from which it expanded to the current size, the ''big bang'' was everywhere.
It did in fact show that everywhere in the universe observes the same expansion and nowhere should be taken as the center. The expansion is happening from every point of view.
Your last statement, amazing and priceless, thank you for making my day. Haha
I think I know the answer. 2nd, An atom is made up of neutrons, protons and electrons. The neutrons and protons form the nucleus of the atom and the electrons orbit this nucleus. These are shaped as spheres as the sphere has the smallest surface area for any shape. This means that instead of an atom looking like a ball, it looks like, (due to a lack of anything else to reference) a bunch of spherical balloons all stuck together with whats called a 'Strong Bond' with others orbiting the big group
The big bang didn't happen anywhere. Or more like it happened everywhere. The big bang was a rapid expansion of spacetime. The question "where it happened" does not make sense.
This video tells us why every point inside the universe appears to be the center of the universe. It still leaves me wondering where was the origin was.
You know what imma try out that audible book, looks pretty cool
But Don, we do know the answer. At one time the entire universe was as close to a point as a non-point can get. Everywhere was at the center in one sense. And there is no center because all places were once as near the center as all others.
The center is all around us as can be seen in the CMBR. Every direction we look we look back in time to the same center.
are you kidding this was my favorite one so far
They did mention that in the video. I clearly missed it. Thanks.
the point is that it didn't happen in any one place, it happened everywhere.
If you're not going to give a reason for unsubscrbing, what's the sense of announcing it? He can see the numbers.
keep in mind the big bang was not an explosion but originated from a small point, that small point was the entire universe and from that little point it expanded. it is all perspective
This says there does not have to be a center - not that there can not be a center. "no fixed frame of reference" said Einstein. A point is not a frame. The horizon is a frame which is not fixed. Extra dimensions come from assuming time is different than space. 3 dimensions. Time is height - the distance from the center. E=M(-C)^2 too. Straight light despite curved, quantized space-times forms a cosmic horizon. knutonianphysics
The word "theory" is the best thing that can happen for an explanation for a phenomenon in science. Ever. It doesn't graduate into a law, but explains a law. Maybe the law is a gas law showing the relationship between pressure, temperature, and volume. Maybe the law is gravitational relationships. A hypothesis will try to explain why and after testing that shows it is consistent with the evidence/law becomes a theory. Then that theory should be able to predict things.
Technically, no. If my understanding is correct, then the Big Bang stopped once the inflationary epoch began. This basically means that during the Big Bang the Universe was still infinitesimally small.
It's not that scientists ignore or reject other things, quite the contrary. Science works because it is open for new possibilities. Whenever new things are discovered, theories are updated to fit with the new evidence. It's an ever-growing progress. Some phenomena in physics are considered ''laws'' simply because they are well-substantiated, overwhelmingly supported by evidence, demonstrated on countless occasions and have never been proven false. Yet it does not mean we could be wrong.
He did answer it - the center is everywhere. The big bang happened EVERYWHERE.
Your comment demonstrates a fundamental misconception of the technical term "observable universe." It's true that your present observable universe extends farther than mine in a particular direction, but no matter how fast I run toward you (discounting theoretical wormholes or warp drives), what is outside of my observable universe will ever remain beyond my reach. In fact, the total mass of my observable universe is decreasing, as distant objects move past the radius of my observable universe.
It's much better when everything is drawn
The video is explaining that the universe didn't expand from one point, instead the entire universe is expanding at an equal rate everywhere. The Big Bang didn't happen in one "location" instead the whole of the universe was the staging ground for The Big Bang.
Don't condem the ones who are trying to unite religion and science, they are the ones who are helping the two groups get along and coexist. Also, because we cannot speak before we die we cannot prove life after death, nor can we disprove it. Please do not think so little of those who have a different view to life and different ways of explaining it.
Once expansion reaches the speed of light, it's pretty much clear about what happens after that..and what happened 'back then.' That explains 'where' the big bang started.
The Big Bang is an incorrect name for something that was never a bang but a rapid expansion. It implies an explosion from one point, which is incorrect. Mostly because it wasn't an explosion. The point he makes is not that everywhere is the center of cosmic expansion, but that no matter the perspective it would seem like where you are at the moment is the center. He talks about perspective, not that everywhere is the center. Maybe you should get your own shit straight before you berate someone
The Big Bang was explained as Everywhere Stretch. It doesn't occur at or from a singular point, which is why he said the name Big Bang Singularity is really misleading. So, hence the name Everywhere Stretch (not catchy) explained it all.
Fatalism aside, the problem with discussing "outside the Universe" is that "Universe" is usually defined as consisting of everything that does or may possibly Exist. So no matter where YOU are, The Universe would be there, too.
Almost by definition, a single-origin Big Bang theory cannot have an "outside", but ANY multiple-origin Big Bang theory (like the Big Bounce, e.g.) MUST have an outside even if it can only be defined in temporal terms. ("the previous BB", "the next BB")
Thanks for the free e-book, even though I don't have an e-reader
Since the big bang was the creation of spacetime originating from a 1 dimensional singularity, "everywhere" is simply an expansion of the same point occurring at the same moment.
The problem with this video is that most of us think of the big bang as fireworks exploding. At any point in time you can look at all the flying sparks and calculate where the center of the explosion was - based on location and velocity of all the different matter. But, from what I understand, the big bang was not an explosion per se. It was an "expansion of space-time" So, everything is moving away from everything else equally in all directions. It's a hard concept to grasp (if I'm even right).
Except that doesn't work because it will usually seem like the point you label (0,0) (the point you measure distance relative to) will look the the center.
The singularity was everywhere since "everywhere" and time were compressed into the singularity prior to the big bang
Were you not watching the video? There was no one location, it's all relative. The Big Bang happened everywhere simultaneously.
Actually it really convinces that someone actually isn't special, and they kill theirselves, And then a bunch of people dislike this because their loved one died! Yayyyyy!!!
This is also why your drink is never fully mixed unless you dump it into a different cup after you mix it. I think.
Because it tracks attention to other people when you scream so if something life threatening scares you someone else can hear you and help you
If I understand it right, this video shows that there's no center of the universe so there's no point in looking for a place in the universe where the big bang was. The big bang was everywhere. Correct me if I'm wrong.
Charlie,
Scientists argue about what model seems most accurate, but they avoid the word "definitely." Though they can talk about what a particular model definitely predicts. Based on the mathematics of general relativity, assumptions generalizing empirical observations of the universe (roughly homogeneous and isotropic on a large enough scale), and the observed spacetime expansion (recession velocity as a function of distance), then there is no preferred location to objectively call The Center.
It's not that we're too close-minded to view the universe from anywhere else, it's that we *can't*.
if there was a "big bang", it should be a center, shouldnt it?, I dont really know how much trust that theory, at least makes sense, but who knows not always making sense imply being right.
No matter where you are at in space it will always seem expanding,that question can't be answered.
if there is expansion in a three dimensional space, there is going to be only one true point of reference, this is considering space as a volumetric entity, from what was explained in the video, the center is everywhere because it was explained from the outside of the expansion, like on the surface of a balloon getting filled with air. the center would be INSIDE the balloon at the start of the expansion; the big bang, if you will.
I believe people are looking for a direction from our frame of reference. Can it really be possible that space is expanding at the same rate everywhere, like a crowd taking one step away from everyone? Or can it be possible that the expansion isn't so clean and organized, that you gain more space to your right than your left?
"Half of the video is advertising." He needs to advertise to make money from this free service that not only he, but TH-cam, provides. If you don't want ads, you should pay for the service...
so if everithing expanding same speed that mean there wasnt any big bang cause if you have explosion in expansion there will still be speed wariation simple as that if you negeate speed of expansion the speed that left you is explosion of big bang ergo it is simple calculable where was the center but it iznt that mean nother prove that there wasnt any big bang at all !!!!
I suppose there is, up is whatevers above your head, and down is below, but it's like port and starboard in a ship, it's always moving.
It's impossible to know because the scaling of the universe is always relative to your perspective. Where you're standing always appears to be where the Big Bang occurred.
From the Video: "It is true the observable universe...was indeed shrunk down into a very very small bit of space". The point he's making is that there is no such thing as an infinitely small point. If we assume that there is a finite amount of mass & energy in the universe (for the sake of argument), we can conclude that it all came from the same "small bit of space" at a point in the distant past. "Everywhere Expansion" refers to the expansion of space, not the dispersion of matter & energy.
I'm surprised that so many people don't understand this video. The point is that there's no center point of expansion, so the question in the title is invalid.
I don't understand how the title of the video correlates to the actual video?