If the universe is only 14 billion years old, how can it be 92 billion light years wide?
ฝัง
- เผยแพร่เมื่อ 24 ก.ย. 2024
- The size and age of the universe seem to not agree with one another. Astronomers have determined that the universe is nearly 14 billion years old and yet its diameter is 92 billion light years across. How can both of those numbers possibly be true? In this video, Fermilab’s Dr. Don Lincoln tells you how.
For further information, see www.fnal.gov
So basically he is saying that we will never ever know how really big the universe is. It’s because we can’t see anything that is beyond 15Billion light years due to the expansion of universe is faster than the speed of light. The fact that we are loosing 20k stars per seconds on our line of sights speaks how fast the universe is expanding. This is very fascinating!
But we know the smallest it could possibly if its curved. Since space measures flat the smallest it could possibly be is 540 billion light years across or we would be able to detect the curvature.
then do they say nothing is faster than light? it sounds like misinformation. i want the truth.
@@briandzwoniarek8952 Yeah, the universe can't expand faster than light, so size can't be more than 13.7 × 2 without someone being full of sheet 💩
There was no big bang.
@@briandzwoniarek8952 nothing can go faster than light, but as in cherenkov radiation light can be slowed down and the charged particles are moving faster than light moves through the water.
In quantum entanglement pairs stay entangled at great distances, but nothing can be done with it. So no information is moving faster than light.
The galaxy is expanding faster than light, but only from our reference frame. If you stared at the farthest galaxy we can see it would take 120,000 years for it to recede out of sight because it's 120,000 light years across.
@@markburch6253 thanks, im trying to get ahold of this concept. its tough
if everybody leaves their toast in for 8 minutes....this could account for most of the dark matter in the universe
Hahahahahaha
Hahahahahaha
Nice
Priceless. Hahahaha. Oh you are gooooood!!!
My whole house is laughing!! Lolol
Basically space is expanding so fast it’s decreasing our render distance
We better get some cards that can run Crysis installed in Hubble and JWST.
What if dark matter is fog of war.
@BigLBA1 From your POINT of view ;-)
@BigLBA1 so if the expansion isn't limited to light speed, could it mean spacecraft could transit these areas faster than light speed? Does this only apply to areas between galaxies or solar systems that the light speed limit would not apply?
ehh sort of
The more I learn about this, the more convinced I am that we really have no idea what we're talking about.
Yep! Exactl. I’ve heard these guys say nothing travels faster than light, but space can’t expand faster than light? Hahaha. It seems so silly to me
Cosmology is a new religion.
After hearing about "dark matter," "dark energy," and "Cosmic Background Radiation" on this "Big Bang", then find out the math behind "tachyons"
Yeah we really dont the amount of completely baseless theory's out there is crazy I'm certainly not heavily religious but to bash the bible or the quran for being baseless but also believing some of these outlandish theories that hold no merit as it is science we have no idea about is always quite odd
@@AlphaAbyss_ Considering how different our understanding of the universe is now compared to a hundred years ago, and the exponential advancement of technology, if we don't have a vastly different understanding a hundred years from now, we will probably have been doing science wrong.
For this reason, I take it all with a grain of salt. The bible, however, continues to make observable sense.
Short answer: The universe is expanding faster that the speed of light.
@ChickensFTW Well, nothing can travel faster than the speed of light in space is the law. But space itself can travel faster than the speed of light. And since the Universe as a net is expanding that means that space itself, not as an object in space, it is able to surpass the speed of light.
Basically stuff can't travel faster than the speed of light through space, but space itself can surpass the speed of light. And therefore the Universes distances and lifespans don't, at first, match up.
So are you suggesting space is faster than light?
@@thatsawesome2060 Yes. Space itself is expanding faster than the light inside it.
Because time slows down as you reach the speed of light.
@juggliar A growing universe never made sense to me. If the universe grows the first questions as cliche as that sounds is: into what? Than the answer would be nothing. What is this nothing then? In what way does it seperate itself from empty space.
Something that grows has a definite size. It is not infinite. Yet science has no idea what lies beyond the observable.
"Because many predictions about the Big Bang have been proven with observational data, we tend to accept it as fact, even though it's still only a popular theory. ... As the story goes, Einstein thought Hubble's theory was flawed. His belief was that the universe was static, rather than steady state."
I like to toast my bread for about 30-35 minutes
Nothing's better than a slice of fresh coal in the morning
Cool
@@colby9529 Coal*
@@channelname10yearsago68 Toasted cool.
@David Johansson coal*
You say “Nothing travels faster than light.” However, I recall from Doug Adams’s “Hitchhikers Guide to the Galaxy” that their spaceship was powered by “bad news” because “nothing travels faster than bad news.” Of course, wherever they went, they were not welcome. Thanks for the clever video.
😁🤣🤣
@@sophiafake-virus2456 don't fall off.
Actually nothing travels faster than the Speed of Love, and its a vector, comes and/or goes
It is true that “nothing@ travels faster than the speed of light, however “something” does
@@sophiafake-virus2456 touch some grass dude
If the universe is so big, why won’t it fight me?
LOL I think it's too busy laughing at us.
I usually toast my bread for 8 minutes until it’s a crisp charcoal black
You monster
@@Exotic4M3 I have black toast intolerance.
Me too. I like toast that is all black on the outside. I toast two slices together in the same compartment so one side is toasted black the other still fluffy
Kinda like those other two guys whose joke you stole
i'm sure he was referring to the time it takes to also apply butter to the toast and sit down to eat it.
I swear this man has a body language of a quest-giving NPC
He is giving me the Arma 3 NPC vibes of body confidence.
Greetings friend, what is it you wish?
quest accepted... I will deliver his letter to the bartender in Cerulean City.
😂
This made me cry its legit
Who else or is it just me who enjoys topics as this, but really understand very little at the end? Lol
He’s actually not good at making things clear.
Who actually thought the question is dumb? Think about it...
I am one of those people too lol
In a video presenation like this, apparently it becomes common to omit important details on the reasons behind and assumptions. I have more questions than answers after watching this. How can he casually state that the universe is expanding faster than light without mentioning that this goes against Einstein's relativity. But interesting anyway.
@@g1ld he clearly stated dark energy is a factor and there is more dark matter and energy than regular matter in the universe, thats why space is moving away faster and faster, space is made up of about 93% dark matter and dark energy
Dude, that toast was way too dark
Actually it's 1.2 trillion wide. I just finished measuring with my yard stick
Is that a front or backyard stick?
I see you gave up once you reached Jupiter
Before you finished measuring it had expanded maybe twice that ,,,,,, well your answer will always be wrong at any given time
It’s actually a billion trillion
You God!
He gives us a professional lesson and all we take in from it is that he leaves his toast in the toaster for wayyyy too long
Even if you dont believe in God, some sins simply can't be forgiven.
That’s only what SOME take away from it ...
Maybe he didn't do it - burn his toast - maybe "Dark Energy " did it !
@@termikesmike I bet that toast tastes like some dark energy. They could probably take it to the lab and solve that whole dark energy problem within about 8 minutes as well.
He just wants to be sure his toaster is working.
He can tell you the age of the universe, but don't ask him how long to toast bread.
@Shadys Back tell a friend actually......actually what???
@Jordann ego
It’s ALL just theories. Quantum mechanics undermines all their claims.
@@mediterraneandiet2483 That’s YOUR theory 😊
@@mediterraneandiet2483 How exactly?
It is impossible to say that the universe is 92 billion light-years wide unless you have found the end of it, which you haven't.
8 minutes for toast. That's why it was burnt to a crisp.
I understand that burned food is carcinogenic.
Except that's not what he said...go back and listen carefully.
@@joehas6440 ha, don't meltdown over burnt toast, try to take a joke without being triggered
TheJoemul69 Bread two minutes , pop tarts two minutes, waffles maybe four minutes
Maybe the bread had been frozen to near 0 kelvin
E.T. Tries to phone home:
“... the number you have dialed is out of your reach...” 😢
yes it is
@68walter: because comcast doubled its rate every day for 4.5 billion years.
😂😂
Spoiler alert!
it just means there were many infinite numbers before the ones currently in range, steadily going out of our range at a rate of 20K per second.
who toasts their bread for 8 minutes
depends on how many toasts you are making... duuh
That's why the toast was burnt. He can do physics but not toast.
The coffee took 8 min. The toast started in Venus time
My toaster is VERY slow!
Photonicinduction's toaster can make toast in 10 seconds.
as I am listening, I can't help but notice so many assumptions that are made for the known visible universe, but are not correct when we want to talk about the entire universe. I wish I could alert Ferminal somehow so they can correct the wrong impression this video and its title can leave on people listening.
I will start with the information given at 2:00.: "The light took 13.7 billion years before it hit the earth". The light mentioned here, is not the light coming from the far end of the entire universe, it is just the light that can reach us from the known universe. In other words, the entire universe can be much much larger than the part from which light can reach us or not even after 13.7 billion years of expansion. To understand this, we need to stop thinking that the universe is expanding from our solar system, with Earth at its center. With this in mind, part of the universe that is 500 billion light years away, can't reach us, will never reach us, but still exist, the big bang still exists, but we are not its center.
Now minute 5:10. You make a sphere from which the universe expands. This sphere does not show the entire universe expanding, it only shows the part of the universe around the Earth, that is expanding. Let's take a star that is 45 billion light years away from us. Similar to us, it too has a known universe that is expanding around it, it too can see light from 41 billion years ago after 13.7 billion years of history + expansion. Except that it is 41 light years away from us. it sees us the same way we see it. for that star, its known universe is 92 billion light years large, or 92 + 46 billion light years away from us. Since we are not at the center entire universe, this star is not the center of the entire universe either. We don't know where the center is, maybe 8000 billion lights years away, maybe nowhere at all, maybe everywhere (theory of inflation). You can see where this is going. The entire universe's size is totally unknown to us. But it is not because it is not known, that should refer to our small little visible universe around Earth, "THE Universe". Too many people get fooled by that.
Yes astronomers can see the light shortly after it begins, but this is not the light coming from the border of the universe, it's the light coming from the far end of what we can see, only that, just the part we can see. It shows the birth of the universe around us, but not its entirety. We can't pretend that the entire universe is limited to what we could ever see.
Please, make the difference between the known universe around the earth, and the entire universe. Don't tell people the universe is 92 billion light years large when this number refers to just the part of the universe around the earth.
We should call this the part of the universe around the Earth, the visible universe, and never call it the universe.
A photon books into a hotel...The bellboy says "May I take your bags sir?'..."No" replies the photon."I'm travelling light"
:)
+1
*facepalm*
In my circle of mates, you would've been punched twice in the arm for that shocker.
Would have been better if he asked for a light.
A proton, electron, and neutron walk into a bar.
The guy at the door says, “five dollars.”
The proton and electron each give the guy their money and begin to walk in.
When the neutron attempts to do the same thing, the guy holds his hand up and says, “For you, there’s no charge.”
Bottom line:
Even the entire Universe runs away from you. Damn, we suck 🤔
Lol
Well, the alternative would suck even more!
It's nothing personal. The Universe doesn't run away from you... instead everything in the Universe runs away from everything else in the Universe. More or less.
In short, everything hates everything
😀
This guy’s morning routine is hilarious!
He toasts his bread for 8(!) minutes and then goes outside to stare at the sun. 😂
Banibal Yonadam It’s amazing he can still see.
6 volt 54 watt toaster or he toasts it with ordinary sunlight.
That would explain his burnt toast.
B. Y.
The comments on this video are really giving me a great laugh. Yours included. Thanks. Very observant - that's what makes a good comedian.
Anne McKeon thank you. Appreciate the comment 😊
To clarify (I had to google this up to confirm), when Don says our visible universe is 46 bya, that's in one direction. So the sphere of visible-ness is 93 b light years across.
He said radius of 46bya thus double it for diameter across.
I concur. Even the smartest people miss the most obvious math!
So technically, from my perspective, I am the center of the visible universe. If someone asks you "what, do you think you're the center of the universe or something?" the answer is yes.
Well, technically, "the visible universe" and "the universe" are two very different things; so the answer is no. :P
@@jim1816 No to " the universe" is correct. Yes to " the visible universe" . I think there may have been just a slight misunderstanding in the wording from ZombieBait.
ZombieBait you’re exactly right! Remember you’re the main character in your own book too!
Technically, there is no center of the universe.
well, the universe COULD be infinitely large, meaning that any and all points within it are 'the center'.
Last time I was this early all four fundamental forces were one and the same thing
All four *known fundamental forces.
Since Q is Picard's pal perhaps this question will be answered?
Hahaha damn that was clever!
fire, air, earth, and Mountain Dew
@@xMaverickFPS Where does vodka fit in? Hmmm... Dark energy... black outs... Hmmm... Oh, answered my own question.
I'm not even going to pretend I understood any of that.
It wasn't that hard
Bhupinder Saroya we have a very short attention span
That is the point. They don’t want you to understand. If you do, you will notice that is not true
@@stefaniaslovat Exactly. Just have faith. Smh, calling themselves 'non-believers'
Good because it was all religious nonsense. Not one shred of evidence in reality.
There’s a guy on Autotrader asking $25k for his 2003 Tundra V8, and it also has 9.5 trillion kilometres.
When this guy was born he was already 52 years old.
with a b
Dr. Don Lincoln was born in 1964 Billions.
😑🙄🤔😭😭😭
The fact is, we are all really 13.7 billion years old.
No, he was 52 years old when the light from him was emitted which was 8 billion burnt toast minutes away.
"Nothing is faster than the speed of light!"
Universe while expanding: "Are you challenging me?"
Best comment
The universe is not and object so why could it not expand faster than light Its not fysical
Light need space to move, so space do what it should do making more space.
@@landergaming don't try and play smart when you can't spell physical correctly
@@feelsbaronman8044 lazyness is the key to invent things take a look at a dishwasher why it got invented
I'm way more confused now than I was when I started watching the video.
Eat some toast
Wow the god botherers are out in force. Go read a bible to the sheep. We prefer reality and facts.
Tom Quirici sorry you couldn’t keep up.
@Tom Quirici science isn't perfect but it's what we've got. If you want to learn about the limitations of these physical models you will have to understand them first.
Watch it a few times and try to write down the gist.
The concepts aren't easily grasped because they aren't very natural to our (human) thought process. Need to put some effort if we really want to understand.
If not, just say science is bs and God rules. Because that's easier to understand
Since the universe is expanding, light from distant stars takes longer to reach earth, since the speed of light is determined only relative to the source, not the object. So the distance between earth and any distant star can't be accurately calculated unless we know the relative speed between earth and the star.
My brain is now a scrambled egg and I can eat it with that toast.
Congratulations, you've become a ZOMBIE
😂😂😂😂 so much said in that joke .... I dug the philosophical sarcasm in response to this video ... I can bet it went over alot of peoples heads
"this is your brain on science"
@@lostpockets2227 ....nice 👍 😂
Is that “egg” with an “e” or some other letter?
That toast was burnt
That’s because he toasted it for eight minutes.
😄😄😄
This is the deeper wisdom in the Universe, That toast was burnt...
Damn it. You beat me to it
@@jmathieson15 Hmm maybe another wisdom: The early worm gets eaten by the early bird ?
I got lost very quick so I started reading the comments.
Camping&Gaming same 😂
Guess whati am doing
You’re not on your own 😂
Watch "crash course astronomy" please.
Thank me later
Haha. Oh shit so am I
Because light years measure distance and years measure time. It’s like saying “how can this thing be 5 minutes old and 10 inches long?” The question is dumb.
That toast was a black hole. Hopefully it's gravity doesn't pull everything in.
@Jerome O'Mara
Um.. nope..
Solar systems do NOT have black holes within them ...
I think in these 8 minutes were a few minutes of waiting for the toast to cool off a little. Add to that the time it took to put on jam, cheese, whatever he eats for breakfast and you'll reach these 8 minutes.
I’m sure he meant to say galaxy
@@abelis644 True. But who's to say the universe itself didn't originate from a black hole that couldn't contain it's own energy anymore. Then boom!.. the big bang. Even in the bible when they describe the void in genesis before there was light, it sounds awfully similar to a black hole. Essentially it's a void in space but where did these voids source from? that is the real question that even the greatest physicists and scientists cannot answer.
@@marksang-pur9984
Black holes are understood,
Here is a quick quote:
"As stars reach the ends of their lives, most will inflate, lose mass, and then cool to form white dwarfs. But the largest of these fiery bodies, those at least 10 to 20 times as massive as our own sun, are destined to become either super-dense neutron stars or so-called stellar-mass black holes.
The Universe is immense (lol, obviously), I don't know that its mass was previously in a black hole... what was there before the big bang...
My wife’s takeaway from this video:
“Don’t pay to have a star named after you... it’s just going to disappear anyway.”
I don't think anyone is naming stars outside of our galaxy (or at least our local group) so I'd say she is wrong.
I knew I shouldn't have done those bong hits before watching this video.
sogerc1 If the star died and is no longer there we still see the light coming because of the distance and eventually the light will all get to us and it will no longer be seen! She is correct!
Edward X. Winston
It may not even exist anymore
Ed, the same thing happens with our children...mostly, as some do stick around longer than others.
"Ahh. I see. So simple. I understand perfectly"
...
C'mon man! Corn pop in the pie hole!😝
Well played sir....well played
Fuck yeah
"Ahh. I see. So simple. I understand perfectly"
Lol
I thought the current models say the universe is expanding faster and faster, not slowing down.
The universe exists in human years but moves in dog years.
Deep
🤯
that's actually a really good analogy lmao
The universe exists in human years, but moves in female years.
Dog years! OMG I forgot all about Jackson's Concept of Time Perception In Relativity To Dog Breeds. Curse you terraavis, now I have to recalculate all my universal theories! This is going to take years, I mean centuries since I am a large german shepherd.
Nothing: "That's right, I do."
Science: "Nothing travels faster than light."
i see what you did there
that was cool
It took me longer than it should've to understand what you did.
Skillzz
Was about to like this comment but it has 69 likes
I don't understand anything that was said in this video except that million starts with an 'M' and billion starts with a 'B'.
TL;DR the universe is so big that it will disappear long before humans have the means to travel further than the closest stars and even those stars will be too far away to travel to from earth eventually... if humanity still exists by that time
jvwilbs - And trillion starts with a 'T'.
@@jpteknoman I very much doubt it. moreover, the sun will heat up in about 600B years, and expand. so that is our time limit.
Wait; wait. You're going too fast for me.
The Universe basically is infinity in size, and every point in the universe is the middle of the Universe. That means that beyond our horizon there is another Universe touching our horizon and we will never be able to see or measure each other
Why do you show Earth spinning backwards?
I seriously thought this guy was going to sell me the Old Testament
... WHY? Hahahaha
@@danielmartinmonge4054 title sound like an a religious anti science type question.
@@Erik-lq4eo no men, Bible needs science so that we can understand God..
@@Black-Jf what
@@Erik-lq4eo God needs to be compete so that we will know whats inside of Him..
If it takes you 8 minutes to make toast, then I think you don't understand time as well as you think you do🤦🏾♂️🤣🤣
Lol, was thinking the same!
That's why it was burnt :)
Broken/worn toaster lol
I guess that makes it "dark toast!
Lol you don’t understand science, if you understood the impact of the pixie fart constant in the differential syslunar space interstitial parabola of the hog’s bosom you would not be making fun of this fantastic genius!
But you don’t because you don’t have phd, so listen and take everything at face value.
If it was geocentric then all he said would make so sense... but it’s not, because it’s heliocentric, we have billions and billions of evidence of it, but I cannot show it to you because you would not understand.
So take your chances with his word salad.
(Man I am listening to this fool while I am typing and really.... it would be funny if it wasn’t all made up with our money)
Whoever told this guy to keep his hands moving while he talks is feeling pretty satisfied I imagine.
And his head
He gets a dollar for every shake!
You laugh, but someday he'll be the first human to achieve self-propelled flight!
@@koenvandamme6901.. He is already... He's even flying Billions of years
If he stuck his hands in his pockets would he go mute?
Here's something else that's 'mind-blowing'. Scientists often speak of "Time and Space" as if both had existence. Time has no existence. It is merely a convenient metric to measure the relative position of objects with regards to each other. It is rather like Trigonometry in that regard -- no independent existence, but very useful as a tool to measure things.
This is why time travel will never be possible. To go back one second in time, something would have to rearrange all the particles in the universe to their position "1 second" ago. It would also have to rearrange all neural connections in all sentient beings in the universe to their previous state 1 second ago.
Have a great 1 rotation of earth on its axis!
Time is relative, and the faster one travels toward the speed of light, the slower time passes for the person travelling relative to a body at rest or travelling slower. This has been tested and proven with atomic clocks leaving one one earth and speeding one up into space. So, of course not time travel as you are correct going backwards is not possible (though some theories try and work it), per se, but one can travel into the future by travelling faster relative to Earth's viewpoint.
@@YukonGhibli One must be careful the conclusions we come to based on these time experiments. What changes in these experiments is a highly localized relationship between movement of atomic particles on one 'clock' versus the other. It has no impact whatsoever on macro 'time/space'. Since all this represents is counting movements/oscillations one versus the other, the only thing changing is the count, not anything substantial or 'real'.
@@bravehome4276 No one does not have to be, these are concepts even my new undergraduate students could understand. There is no such thing as a localised relationship or set distance required. The test is speed, and to get high enough speeds to measure the time dilation one only has to go into space. It is not rocket science as the Americans say.
@@YukonGhibliWhen I say localized, that means these 'time dilation' experiments only apply to the clocks, not the universe. To go forward or backward one second in time would require every subatomic particle to be repositioned back/forward one second, and that clearly is not possible (to living creatures). In addition, every sentient being would require its thoughts to be readjusted to their state one 'second' previously. Again, not gonna happen. So what is the purpose of said tests?
TOTALLY WRONG! Mr Smug as F%*K🙈🙉🐒💩👎🤡
That was some very, very burned toast.
Jon R how do you know what power setting was inapropriate for the toast?
It wasn't burned... the light from the toast just hasn't reached us yet.
@@inox1ck i mean you can actually see the toast is burnt in the video. It's fo0ckin disgusting lmao
The distance Sun-Earth is 1 AU or 8 light minutes. If you toast a slice of toast for 8 minutes it usually transforms into a charcoal-like state.
That's what happens when you leave it in for 8 minutes
Draw more stuff on your blackboard. I don't believe you yet.
Epic comment
Except hed be drawing all over his green screen. Kind of like how other engineers at my company keep writing off the end of the whiteboard and onto the wall by mistake.
@@mysock351C r/wooosh
I'm not quite bamboozled yet.
@@mr.boomguy he knows that it is a joke lmao
This explanation is great but it makes it seem that little old earth is at the centre of the everything. Presumably on a planet 46 bly away - ie at the edge of our universe - there could be another observer. What does their universe look like?
I don't recommend looking at the sun, or burning your toast
Quantum physicist walks into a bar. Bartender says, "Weren't you here tomorrow?"
Quantum physicist says, "No, but I'll be back yesterday."
Nerdddd
@Jeremy Cruz
Your pfp looks the same; I thought you roasted yourself
"There was a young lady named Bright who could travel much faster than light. She left one morning in an Einsteinian way and returned the previous night." - old saying
J R Deckard Hmm? Now.......! I can never catch up with him....
I bet that has them rolling in the aisles at conventions. 😉
I knew this guy was legit when I saw all those equations on the chalk board behind him.
It’s actually the equation he uses to calculate how long to toast his bread
@@pts5217 and still he fucked it up. Zero credibility.
@@sfbloodsister Finally found someone with a brain in the comment section.
Hahaha
Ha ha ha
When we look at the sun we're seeing it as it is NOW/HERE. Because time and space are inextricably intertwined. You can't ever see the sun as it was eight minutes ago, because you can only see it from your own frame of reference.
"when we sit down in the morning with a slice of carbon."
Was that carbon 14 or ????
Bwahaha.....
😂
Now that is funny!
i think he was trying to say that carbon is the building block of the universe.....
I see 14k comments in just a few months on a video from Fermilab and think: "Maybe humanity isn't lost after all!"
Than scroll down and see half of them are about burning your toast... *facepalm*
Hey, getting toast just right is a serious problem for physics.
I truly regret it, but I must reveal to you the great secret, humanity is truly at an end.
Do you KNOW how BAD burned toast can smell?!
😁😁😁😁
If science can't even get toast right, what good is it?
It's the little things in life that matter the most. Like the perfect golden piece of toast.
I don't understand the 4.33 minute. how do we know the radius of the CMB sphere that was emitted after the big bang 42 million years? please can anyone explain it?
Less than a minute in and you've already taught me that I have no idea how long my toaster takes.
Of all the information given that's what you are getting from? Hahaha
@Planet Purgatory Sounds like an open and shut case. Consider me a convert, but I'm ashamed as an American to say that I don't have a deep fryer at the ready for my morning routine.
8,2 min
That long will burn your bread to coal
You're trying to be funny,?
Of course you know that's not how coal is made... By burning I mean.
Can we address the fact that that toast is burnt to heck and back. Thank you. This has been my Ted Talk.
It was toasted for 3 minutes, but because of the expansion of the universe it was actually toasted 90 minutes.
That was for a reason, because sun light takes 8mins to reach the Earth,so the toast was put in for 8 mins :)
@@ion9084 I feel like that was a subtle joke. If your bread is in the toaster for 8 mins, it’s gonna come out looking like that lol.
I'm still expanding like the universe and my shoes are becoming harder to see.
Recent studies suggest universe is actually 26.7 billion years old
That’s impossible to know. Pure pseudoscience speculation.
@@deangulberry1876 no its not dr gupta give a great explaination it can be 26 billion years old
@@Cine95 there’s no way to prove it. I’m sure Gupta is a great man. But you quite simple cannot observe billions of years, let alone observe a billion years in an experiment.
@@deangulberry1876 this is how they did it in the first place observed billions of years in experiments gupta has given some solid logic which again should be taken into account cause his explanation makes more sense cause according to the 13 billion years old theory the universe started to kinda become its present shape right after 300 million years how did it go on such evolution so fast that is a big question that the 13 billion years figure generally is not good at explaining
@@geosynchronous4386 at least a fart can be scientifically observed and recorded. 😂 The “big bang” and “length” of the universe cannot.
The space expansion must be the explanation why my waist size is constantly increasing
That would make sense if your mass isn’t increasing :)
You, like I, are at peace with the cosmos.
The more scientific explanation is beer.
😂
Donuts is the reason for that waistline bud
We lose 20,000 stars per second. Worth watching for that stat alone. It left me rather sad. Anyone fancy signing a farewell card?
Yeah I like how they just come up with some number like that. Too much pressing the "I believe" button and it gets riduciouls. They don't even know how many stars are in our own galaxy yet alone the universe to come up with that guess-estimate.
Build a star wall
Well...there is a way to calculate it with a surprising amount of accuracy if you think about it...but you need to grasp a few mathematical concepts. To keep it simple we need to start with an agreement. If I take a large enough number there comes a point where being off by a power of 10 doesn't meaningfully change the number. For instance...if I subtract 10^million billion billion from 10^billion billion billion...did the number change? Answer...not really. The number would still be written 10^billion billion billion. Even if it was 100 million billion billion...we wouldn't change how it was written. because the answer is substantially the same. So, starting from that we can do some math. What we need. How many stars in the average galaxy. How many galaxies is the visible universe. How many galaxies are there every 100 million lightyears from us. How fast is the universe expanding. How fast is the speed of light. We know all of that, thanks largely to the properties of very large numbers and because the universe is very uniform at a large scale. So you use all of that to calculate how many galaxies are falling off our visible range each year. We then take the average number of stars in each galaxy, that tells us how many stars per year. The we calculate whatever we want from there. Because of the numbers involved...the answers will be very similar...20000...to a scientist isn't actually very meaningful...and this was probably actually extrapolated from a stat that was something like how many galaxies fall out of view every million years...but it can still be calculated by anybody.
Nick Spanlopis very interesting and explained in simple terms, thanks!
@@nickspanlopis9342 In other words, anyone can make a wild-ass guess, then challenge anyone to prove that their imaginary number is wrong.
That piece of toast spent 8 minutes on the sun
Best comment.
Beat me to it lol
Yeah, I was thinking after 8 minutes toast is usually inedible.
Apparently,The toaster is hotter than the sun.
best comment
There is no contradiction there. 14 billion years old is an age whereas 92 billion light years is a length. In the context it is being used is a measurement of size and not how long as in time?
Works at Fermi.
Can't even make a proper toast.
The current state of science.
Define 'toast'
Hahaha can do the math on the blackboard but can't make toast
He shouldn't have to. Let the scientists focus on science, give them whatever they need
@@madeuppington8702 underrated comment
@@madeuppington8702
Brilliant. 💖C💗
🖤🥼🔬✏🥽🌌🚀🛰🛸
Well, that's sure cleared everything up.
lol
Hahahah
Sam Wilt that’s not how TH-cam comments work
there are some really good videos about this on PBS's Space Time channel, too!
Peter smart guy talk physics:)
The best part of this video is the absence of music, like in so many TH-cam videos.
The music hasn't had time to reach you yet. But when it finally does, you will be hearing it not as it is now, but as it was then.
@@Brian-lz9wh Funny man. Sense of humor.
@@Brian-lz9wh *Oops* It just arrived! And with the right name th-cam.com/video/atnJ1A5kEWw/w-d-xo.html
Most try to attract attention to and make a mediocre video better with noisy music. Some even try to say something but you cant understand anything because of the foreground music.
Professionals like Don dont need to do that.
@@Ullimately One person, who posts educational videos to TH-cam, explained to me that the vast majority of people are so uneducated and stupid that the only way to hold their attention is to try to entertain, at the same time that they teach. And so, they add music to the narration.
If the universe is infinite then there could be "objects" so distant from our creation that we will only see them when their light reaches us
So the Universe started with a bang but will end with a splutter? Sounds like my university years 😂
0 D sounds like my car !
My school years were the opposite
@David Roberts I learned quite a bit at Zonie State. Why didn't you?
Did you camp out and party on Mill Avenue or did you spend your time in Hayden Library? Was your Spring Break in Mazatlan or Lake Havasu fun? I never went. That is why you may have gotten killed in your mid term exams right after the break while I sweated it out on campus till 2 in the morning.
It is like Frank Zappa said. "You go to college to get laid. You go to the library to learn."
As I wrote I learned quite a bit at Zonie State. You get what you put into it.
@@AndrewMcLay274 What physical evidence, what empirical evidence, do you have to support such an assertion or hypothesis?. While I will agree that there are problems with the current "Big Bang" model I have not yet found reason to abandon it. So I am all ears. Please present your argument.
@@AndrewMcLay274 Thank you for your expansion. I agree with your assertion that it is as much of a nonsense question to ask what is outside of the Universe as it is to asking the nonsense question, "What is South of the South Pole?" as the South Pole is the most southern point of the globe, by definition. There cannot be anything South of the South Pole as there cannot be anything outside of the singularity.
As for the Physical Universe...The singularity always existed as a singularity and will always exist as a singularity, the singularity in which we are existing within, as energy can neither be created nor destroyed, but merely transformed.
As for the terms "matter", "place" or even "time"? Well they could not exist before the expansion of the singularity. as mass, distance, and time manifest as the direct result of the energy of the singularity being slowed down from Light Speed. (Run the Einstein-Lorentz Special Relativity transformation equations "backwards". I can develop the math, here, if you want. It is simple with one's understanding of the concept of the Limit. But it does take me some time.)
Of course we do live inside of the ever expanding singularity and it is an appropriate question to ask when the expansion event happened with respect to time. And that expansion event is what is understood as "the beginning" to many...although somewhat erroneously perhaps.
How do we trust someone that can’t even make toast
Because making toast is the least of his worries
He's a brilliant physicist (apparently). If he could make toast, then you should worry!
LOL
He was a bit preoccupied with maths and the toast burnt.
Love how he conveniently leaves out the indisputable fact that every single probe they have sent out to reassess the original findings of the "W-Map" come back with more precise findings of the original ....the Earth is at the exact center of the universe ! This is a FACT and can be found in the papers of the scientists responsible for each and every mission...FACT. But you will never have it announced because that FACT lends itself to 1) the bible is true.and 2) we are very special in the universal scheme of things which also proves the Bible
Thank you. It's very rare for anyone to clarify a thing like this without raising more questions than he answers.
So, in 100 years from now, will scientists still agree on these numbers?
Its 93 billion light years
Edit: 94
Edit 2: 95
Edit 3: 96
Edit 4: 97
Edit 5: uncauntable :/
Edit 6: wait wha
Edit 7: 6 equals 0, here is how
Im concerned
It is now 105 light years
Its not that fast :/
@@reinatr4848 . It is
@@e3210-y7oit is
A joke, I hope.
When you realise logic is more complicated than you thought.
Huh ?
Especially when you're trying to explain something you don't really understand yourself.
Let me run a idea that I came up with. Through out time on this earth, we’ve had giants that roamed the earth. As we evolved we apparently got smaller, yet smarter. We learned a lot about ourselves. Our bodies are actually energy, our brains operate on electrical impulses which sends information to all parts of the body, we get our energy from the food we eat, the sun, and as we lay down we can recharge our batteries to live and operate for another day. Let’s take a look at the simplest theory of the box in box. Suppose what you see is actually the inside of the father/gods brain matter. We are just living within, thus we may also have mini universes living and thriving within us. As for the speed of light as it relates to the universe that could very well be the thoughts of the creator. Think about this, when you want to move any part of your body, how long does it take for your brain to send those electric impulses to your muscles to move them? So the box theory could relate to we are the body living within another body. If indeed what you see in space is actually the inside of the creators brain, we also have a universe living within our brains as well, thus touching on another theory of the multi-verse.
@@heartofthunder1440
What are you smoking? Nirvana Kush?
Actually God dwells in a metaphysically separate realm. His brain is not a physical thing. He created all matter and energy from nothing. He even created what we know as time. His word is all that is necessary for creation.
@@Gpacharlie I’m looking at things from a infinity standpoint. We could be just that small. You do know that solar system do resemble a atom in some aspects. Infinity ♾ small infinity big, box in a box, and multi-verse can go hand in hand.
I've often asked myself that question, then fell asleep.
“The universe is expanding and it used to be expanding much faster than it is now.”
Wait what? When did this happen? I thought it was expanding faster and, in fact, is accelerating in its expansion. A couple of guys won the Nobel prize for that discovery not too long ago.
Never mind he goes on to explain a few mins later. Hold off commenting until the end of the video idiot.
3:15 let's make a visualization of the big bang. And let's put stars in the background... :-|
I noticed that too hahahaha
Oops!
You think those are stars, but they actually are parallel universes
Yeah it's pretty lame
They know the secret.
Can you please redo the video with the earth spinning the correct way?
9 (8) mi minute toast? No wonder it's burnt.
LOL, I was going to say the same thing!
The toast is just right - if you like it like Hemingway - 'Ebony'
Toasting,coffee brewing, etc.. he expects audience to get the silly irrelevant parts.. i know it is confusing
Lol, funny comment couldn't stop laughing
Nice 😆
The question in the thumb nail assumes that it expands at no more than the speed of light.
If I left my toast in the toaster for 8 minutes, there would be another Big Bang!!
Lol true
???? Think..how long does it take to cook the Toast..take it out, butter it, cut it, finish cooking breakfast, pour juice, get eating utensils, walk to table, sit down..look at Newspaper, read a bit and then start eating..he said he put the Toast in...8 minutes ago .not. put it in For 8 minutes..
The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.
I've been sitting here for a moment, pondering how to argue with that! Love it! LOL :-)
😂😂😂
@@PerplexiaX Watch a few more videos, it gets old after the first 100 times you read it.
@@silversolver7809 I'm sure it does, but the first time, it _is_ funny! lol :-)
Oh would you stop it with the self loathing already?
"I'll say that again so it can sink in..." I'll need more than that. 🤯
Seriously, this was eloquently and beautifully explained in layman's language without being patronising or condescending. Well done
And still mind blowingly hard to comprehend.
92 billion is just as far as we can see. If a scientist had an imagination, he could see that the universe must be much bigger.
Love stuff like this, it's a great distraction from all the news and politics.
Just came here after watching political videos lol. The last one was heated, not because of the policies, but because of 3 people from the crowd who didn't want to be interviewed? But clearly wanted to interview so that they could tell the interviewer that they didn't want to be interviewed...
Anyway, since that bizarre clip, I've read two comments, including yours.
thats how im here also!
YES! Politics have become so hateful, and disgusting. I rather focus on the universe then any of that nonsense.
Just like the universe we are drifting further apart and some of us cat see each other but instead of getting on a soapbox maybe help out???
Politics is man-made jibber jabber. Astrophysics is real and all around us, not just a distraction.
This is a bit sad when you think about it. And it gets even more depressing when you think that you constantly lose galaxies where you could find a girlfriend which is of course impossible here on Earth.
you telling me!!! All I hear is "NO GOOD MEN, TOO THIS, TOO THAT..." when they find one they have no idea what to do with him!!!!
C Am F G Don’t get yourself down man, there’s a green girl out there somewhere.
Someone needs to get this man a toaster that doesn't take eight minutes! Lol
He clearly left it in too long seeing how black it is
That's your job 🧐
Then we cannot use size to gauge time. And it begs, how long has the expansion been uniform?
The entire night sky is the afterglow of one hell of a firework display 14 billion years ago. Talk about burnt retinas
No, our visible stars are closer than that and formed much later. The universe is much older as well imo.
Not really, the stars that we can see with our naked eye are no more than 10,000 light years away which is an utterly insignificant amount of time in the universe. But yeah, for us humans who barely live for an average of 75 years, we do glimpse into the distant past. It's crazy to think about.
Another way to propose this question might be : How could anyone accurately know how old the universe is or how wide it is?
Computer models and lots of bullshit.
I know that the Universe is very old and very wide.
My very first thought.
The galaxies and nebulas are home to various entities, some of them light years huge. One look at the Orion Nebula Trapezium from various angles and relative distances will reveal to a scrupulous eye many, many faces of Earth creatures. Some are just a conglomeration of images, but others are symmetric, complete, and easily indentifiable! Orion is "Our" nebula; the closest one to Earth and obviously revered by the builders of Giza....
We can set lower limits by what we obviously see around us, and upper limits not at all. That's the whole range of possibilities. Yes, we have no idea about either.
Nobody:
This guy: *toasts bread for 8 minutes*
Explains why it resembles a slab of carbon.
8 minutes???? Is he sure that the toaster's plugged in? 😟
This fucking meme needs to die. Stop spreading the cancer.
Did you notice that the bread was burnt?
Cremated!
Wouldn't it be correct to say that the observable universe is 14 billion lightyears, but we are observing an old universe.
Though I comprehend little of this subject , my interest in this stuff is intense.. And, he is such a good speaker!
The channel "kurzgesagt in a nutshell" have great videos about this subject and others. The one called "limits of humanity", if i remembered correctly, talks about some topics discussed here.
5:42 "Dark energy is a repulsive form of gravity."
I agree. Yick.
Michael Lubin what a moron doesn’t that make gravity electrostatic? Jeez they really have their heads in Uranus.... I mean their respective ones.
Maybe it's got a good personality?
Not as repulsive as that piece of toast though.
@Josh Gibladar Too bad the earth is not flat :(
@Josh Gibladar *based on a proven theory. its impossible to be 100% correct on anything, we dont know the circumstances of how everything happened but we do know the universe is expanding, simply using telescopes. we know that there are universal constants but we have no way of proving them yet because we lack the relevant data, doesn't mean its wrong. "slowed light", what does that even mean, light itself travels at different speeds based on the medium (the fastest being in space). gravity is a fundamental force which is a main component in the creation of stars, as its the immense pressure which creates fusion, which you need gravity for and leaving that component out of your "calculations" is frankly stupid and not worth discussing over
My head is expanding from its point of origin ...
There is nothing in this video that discredits the existence of God. Boiled down this video is basically just explaining the principle that if I'm 100 feet away from you and I throw a rock at you while running away the rock travels 100' but I'm much further away than that.
The more I understand the universe and how it works the more I see and appreciate God.
@WingsOfTruth Theories proving nothing doesn't mean God exists. What proves that?
Uranus?
@WingsOfTruth if God exists then why did I just eat a baby?
WingsOfTruth “god exists” - a man with a theory
I am afraid you have it wrong. The visible universe cannot be 46B light years big being 13.7B years old, because that would be expanding at a larger than speed of light speed.
"Dark Energy is a repulsive form of gravity..."
Hey! You can't talk to my boy Dark Energy like that!
Give me its source.
@@abhabh6896 please ask Einstein.
so you've been out there and tested dark energy have you ???? , f&*king moron
Face the fact, it's not what it used to be
Dark matter matters!!!
The entire universe isn't 92 billion years wide. The "observable universe" is 92 billion years wide. We don't know how big the entire universe is because we can't see anything outside of the observable portion. I strongly recommend fixing the title to avoid misinforming more people.
Extremely good catch.
In that same regard, wouldn't it be appropriate to say the universe isn't 14 billion years old, but the observable universe is 14 billion years old, since that's as far back as we can see?
Good point! I'd change the title too. Of course in his talk, I took his saying "the visible universe" as synonymous with "the observable universe."
This confusion gets even worse when theologians get involved. Otherwise we have at least four important concepts to worry about, all of which people use the word "universe" which leads to logical problems if equivalency. There is the "observable universe" which is what we observe. There is the "known universe" which includes the "observable universe" but also includes things we can't see like the big bang and other singularities, dark energy, dark matter, and the notion that the universe is larger than we can see but we can know about a priori (which is the topic of the video explaining we can see 14 billion light years which is "observable" and that it is actually 46 light years away which is "known"). Then there is the concept of "multi-verse", but that is string theory and not science, yet still interesting. And, there is the more philosophical notion of the "cosmos" which would include all that is, known or unknown, seen or unseen.
What happened in the title of the video is that it assumes nothing travels faster than light. This is true according to General Relativity when you show that nothing can travel through space faster than light, but space itself, as it expands, can carry light with it. That is why when you get to an expansion rate as fast or faster than light moving away from us, the light from an object at that point can never reach us.
One of the problems with these talks is that they imply "cosmos" when what they are really talking about is the "observable universe". Now, that is confusing because at the same time, nobody really believes that the Earth is at the center of the universe, and even the physicists will say the Big Bang happened everywhere and that no matter where you are in the "universe", you'll see the same expansion phenomenon. That means that if you were at the edge of our "observable universe" you'd see what would become our solar system 14 billion years ago, and we'd now be 46 billion light years away, and you'd see 14 billion years further than earth can, which would be another 46 billion light years distant.
The popular scientific axiom is, "If we can't observe it, it doesn't exist." I refer you to "scientific atheism."