If the universe is only 14 billion years old, how can it be 92 billion light years wide?
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- Опубліковано 18 чер 2019
- 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 - Наука та технологія
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.
They are now saying the universe is actually 28 billion years old according to recent discoveries as opposed to 14 billion. This guy is literally wrong by his own ideology. You are on the point. I'm am a Christian but I'm not going to sit here and lecture. All I will say is no scientific idea can ever explain the "creator of the creation of the universe". No single Big Bang, simulation, continious Big Bang, split universe, or etc can be made without yet another creation which leads to the "actual" begining. The only explanation is at some point, there was a "creator" who was not created and doesn't follow the laws of science and human knowledge. That sounds like God, something who doesn't need a creator and tells us that there are things we cannot understand as humans on Earth. Another evidence is our supposidly infinite universe...that has one planet with abundence of life. That is statistically impossible as if the unvierse is infinite and there is one case of life, then it should be literally everywhere, even just for human survival (not even talking about bacteria in underwater volcanoes or what we can't understand) as it is confirmed possible. Yet through any visible signs, movement of space dust, archeologic evidence on asteroids or moons or planets, gas trails, communication through waves being irregular or anything else has never even appeared; even when conspiracy channels grasp for straws there is still nothing. So how can only 1 exist out of infinity, especially after supposidly 14 or 28 billion years? That sounds like a miracle to me...see where I'm going here lol (come on that was a little clever). Stay skeptical friend because we will never know anything for sure. I'm not some monk either, I'm 19 year old dude and the more I learn the more faith I get and more skeptical I get. Good luck friend.
If the universe is so big, why won’t it fight me?
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
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
Excellent video. Earned a new sub.
This is a mind blower. Great video. Thanks.
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.
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
Great video!!
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*
I always wanted this question answered. It was never explained to me on TV how we could see the beginning of the big bang. I couldn't get my head around it as surly the light had already passed us. Thanks for the explanation but will need to watch a few times.
Thanks for the video.
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.
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
Awesome video!
Great presentation, educational, inligjting, interesting. Great. Thanks!
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?
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!
Somehow this channel makes me feel smarter. Thanks
FINALLY..I understand. You've answered all my questions. I honor you.
Brilliant explanation, I’ve just had a rare “ moment of clarity” 💡thanks 👍
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.
I appreciate the deep dives on this channel... great vids, but I'm also a little surprised at the "absolute" way some of this is presented. We are still pretty limited in our knowledge, so much of this is a scientific guess (or theory).
If something in the universe has been seen or measured - especially if it has been seen or measured by multiple teams using different methodologies, and so the probability of it being a fact is high - then it's not just a guess, it can be treated as a fact. Prof Lincoln tends to do videos about aspects of the universe that have been thoroughly tested out - and everything he talks about in this video has been thoroughly tested. So yes - you can talk about those things as facts.
If you've got the training and the equipment, you can test them out yourself, you don't have to take his word for it. That's what's so good about science, good scientists are very clear about the data and methodologies they used and the probability of their claims being true. And any lab in any country can repeat the tests and check the claim for themselves - it's not a matter of opinion or belief.
He's also explicit about things we don't know, and things we think are true but have not been tested exhaustively yet. But this video is about well verified facts.
@@nycbearff I hear you and for the most part I agree... that's why I like this channel, but to say everything in this video has been thoroughly tested out and proven as fact is not a great scientific statement. For example, at the beginning of the video the age of the universe is mentioned and Prof Lincoln states "if you take that number as a given" then references another video. A better statement is "we assume the age of the universe from what we currently know." And that's what I'm pushing on... our knowledge is far more limited than we like to think... our universe could be way older... we are simply relying on our current methods of measurement and we all know how much things change as technology changes. So to recap: my push was on how absolute some of the things were presented that are only "absolute based on our current set of measuring tools and knowledge base"... that moves things from fact back to theory, where science operates best. My guess is, if pushed, Pro Lincoln would agree, but that tends to make a more cluttered video.
Superb explanation, thanks!
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 ?
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
I have often wondered this, so thanks for the video! The answer is the expanding universe. It reminds me of the Slow Heat Death theory.
Probably, this 10 minutes long video was the most eye openining video I have ever seen on youtube. What a great explanation. Amazing. Thank you.
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
😀
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
Thank you for such a clear explanation of this nugget of physics!
Great explanation
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.
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.”
love this guys videos
I’m going to miss those galaxies we can’t see anymore
My neighbor drove a 1965 Ford Galaxie.
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
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.
I thought the current models say the universe is expanding faster and faster, not slowing down.
Thank you for this clearly explained and entertaining presentation. I was familiar with most of the ideas in the video and glad to learn new ones.
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
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.
You should do your take on axionic dark matter. I love PBS Space Time and am not afraid to admit that, while Mat is an excellent science communicator, some of the videos take multiple viewing to feel I've really grasped the key ideas.
Mat O'Dowd definitely varies the intellectual level of his videos with some being fun and, in the level he covers it, I understand - all quasars, blazars and radio galaxies with lobes that seem to defy the laws of cause and effect, their opposite lobes stretch so discombobulatingly far from each other.
the most underRated scientific channel. I have been watching its content for a long time now (cosmologist says: "really" 😅😅 are you sure its a long time 😂)
Well, that's sure cleared everything up.
lol
Hahahah
Sam Wilt that’s not how UA-cam comments work
there are some really good videos about this on PBS's Space Time channel, too!
Peter smart guy talk physics:)
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'.
These are soooooo good!!!!!!!
Tnx for those kind videos
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?
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..
@@valvennis what
@@Erik-lq4eo God needs to be compete so that we will know whats inside of Him..
Best explanation
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!
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...
I like how he’s explaining something really complicated and he’s more concerned I understand that million starts with an m.
He says with an M so you don’t think he said billion you idiot
ArkadyVasiliev yes I think we all get it.
🤣 you are funny 😂
@@ArkadyVasiliev To presume someone is an idiot when they clearly understood the difference is.. Idiotic
Everyone knows that after a million comes a milliard, and then billion, after which billiard, trillion, trilliard,....
Take that, English speakers!
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.
Dude, that toast was way too dark
Me: Confused 😐
*After watching this video
Me: Still confused 😵
You played NieR, nothing should confuse you anymore
Basically the universe expands faster than the speed of light so we see less and less stars as time goes on theoretically. Imagine the universe as an Hoberman sphere (search it on google), that's how space expansion looks like.
@@AndryRock9217 I searched it on Google .... It said ( and I quote ) .....
"Something that AndryRock9217 made up" ...... What gives ?
@@stevenattanasso2003 Well this is how I understood it. If you think I'm wrong then please explain.
@@AndryRock9217 what you said is accurate. Except the expansion rate wasn't and isn't always faster than light. The expansion rate is listed as distance expanded per time per parsec. So big voids of space expand faster (the distances between far objects) faster than close objects. Partially why in the future we will only see our closest neighbours.
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
I just re-watched this again and now the question comes to mind that space-time is expanding beyond the speed of light? Only Don Lincoln can get the rusty old gears in head turning again and rekindling my long dormant childhood curiosity.
Yeah It seems to me he didn't really answer the original question! He just put it in a different context, but the original point isn't addressed.
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.
I don't recommend looking at the sun, or burning your toast
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 😊
Thanks Don. This is one of my favourite videos.!!
Can someone clarify me this:
If CMB radiation that arrives today to us was emitted 13,7 b years ago at a distance of only 42 million ly, does this means that all galaxies we see today (even the most distant) were closer than 42 million ly when the radiation was emited?
I guess the point in space that those galaxies we can see now occupy would have been well within the 42 million ly radius. But there weren't any galaxies at the point in time the CMB was emitted. The oldest galaxies we can see would have formed several hundred million years after the time the CMB originated from.
Thanks for your answer. Let me ask it in another way: the univers expands in different rates during different periods. Huge expansion at the begging, low expansion till 7/8 b years and accelerate expansion till now. The CMB radiation during its trip from 42 Mly to us today, has found all these expansion rates, that made it last 13,7 b years. During the first period, did the radiation got away from us due to the high expansion and in the other late periods make up lost ground?
No, the closer galaxies (eg 1b ly away) moved out of 42 million ly sphere 1b years ago.
Beginning of the universe is such a wonderful mystery!! I Have many questions in this regard. Considering that the present universe we know started with a big bang- which means there was a singularity in the beginning/does it mean there was no space at all? Or with a big bang suddenly the space got created, then what was the volume of that space and the light ( or the ancient light) that was available during that time had a possibility of travelling in a space or has it kind of helped in pushing the space? What if we have ample of light in a very very limited space? Does light always need a space? Another thing that I am also wondering about, is the speed of light has been constant since the very beginning, or it did kind of EVOLVE?
LIght a spliff to help with comprehension.
"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
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.
Very interesting. Physics is fascinating and intellectually humbling.
The best part of this video is the absence of music, like in so many UA-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 ua-cam.com/video/atnJ1A5kEWw/v-deo.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 UA-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.
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
The way it dumbed down. I feel like I can become a scientist now. Thank you for helping us understand
gotta say, this was explained spectacularly well. clear an concise and engaging. i'd sit in a lecture from this guy in a heartbeat
Why can’t they use scientist to explain a death of someone just 200 hundred years ago? And why is DNA just got figured out just 40-45 years ago? Why is science better just 100 years ago and not 1000 years ago? Why math is based on guessing 200-250 Yrs ago and not 1000 yrs ago?
But the Bible explains everything of life of 6000 Yrs ago. In theory science is a questing game by people who choose not to believe in God.
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💗
🖤🥼🔬✏🥽🌌🚀🛰🛸
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.
I love all the videos. In this one, however, why is the Earth rotating backwards?
I just want that toaster at this point. You put it in, toasted it, AND put jam on it before sitting and looking at the sun
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
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?
Thank lots for sharing 👍 💚 ❤️ 💙
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🙈🙉🐒💩👎🤡
I'm still expanding like the universe and my shoes are becoming harder to see.
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
Excellent
I've often asked myself that question, then fell asleep.
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
My head is exploding. Now there are more and bigger questions. Distance implies size. Where is the universe expanding to and where is the point of origin???
Since gravity binds us in an expanding universe does that mean technically(or literally) we are moving towards the objects we are bound too? Kind of like having a book and a dot in the middle at the edge of front and back cover… opening the book is like expanding the universe but since the dots must stay the same distance apart(let’s say an inch as the book is an inch think cover to cover) they would travel down until they were both at the middle of the spine of the book. Technically traveling through space and even accelerating as the expansion does.
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
"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 like you have a nine cell 1.3 GHz superconducting niobium cavity sketched on the blackboard. Takes me back to HEPL at Stanford where the first of these cavities were developed.
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.
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.
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.
That's what I was always wondering.
Interesting Video. Then the obvious next question is, if the universe is really limited in space-time, what comes after? And if its really expanding, what is the content that it is expanding in?
"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.....
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.