How far is the edge of the universe?

[@JavierArveloCruzSantana]

Does this channel pay KZbin NOT to interrupt the lecture? Dr. Lincoln, it's always a pleasure to listen to your lessons.

[@minilab9030]

Most people who want to avoid annoying adverts use a browser add-on such as Ublock Origin. No more ads.

[@paganphil100]

Javier Arvelo-Cruz-Santana: Install this FREE Ad-blocker and you won't get any more adverts interrupting videos (unless they're part of the video itself). adblockplus.org/

[@grassfedmilkmomma]

Ive never been interupted while watching him either. I just love his stuff😁

[@nawynerwy6430]

@@paganphil100 Philip thanks he's all my time I'm take pain 💔😭😔😥🤐🙏🤒😢🙏 he's publishement always

[@nawynerwy6430]

Thanks for understand I'm so die for tired my lifetime thanks all

[@mazelme]

When my dog gets a treat from my left hand she was expecting to be in my right, it blows her little mind...completely. That is what this video is doing to me! Thank you Dr. Don!

[@hb-youtube]

Check out Inside Animal Hearts and Minds: Bears That Count, Goats That Surf, and Other True Stories of Animal Intelligence and Emotion-- Book by Belinda Recio ..it has some remarkable stories all sourced to actual published research papers listed in back of book or from the scientists themselves. I hate to give away one of the more powerful examples shared but ... It concerns an orangutan who had been taught and who knew sign language and was able to make basic statements& ask simple questions. True story.. One evening the orangutan was outside with their scientist care taker and got the care taker's attention and then pointed to the Moon and then used sign language to ask:"What is that?" Poignant for several reasons not just animal intelligence but also like a time machine or window to what early humans and hominids having those or similar early questions... is almost proto science by nonhumans too..

[@milosstojanovic4623]

@@hb-youtube this is great, and thats actual same with humans, we(if we care and are curious) gonna try to learn something new, i just wonder if other animals would be more intelligent, what they would ask!?

[@dimtgco1428]

That's funny. I play guess which hand with my dog all the time. He sniffs it out. What really gets him is when both hands are empty. Then he goes behind my back and grabs it. I hear a dogs sense if smell is 10,000x better than humans. Yet the most offense stench doesn't bother him in the least bit. Go figure.....

[@kelleychilton2524]

Stop doing that to your dog!! 🐾🐾

[@dreadinside654]

I wish this man was my science teacher when I was in high school. Now at the age of 40 I love listening to his presentation here in KZbin. It's so calming and informative at the same time. 😃

[@postholedigger8726]

Dread Inside, He probably wishes that as well. At 40 it isn't too late to study the material you didn't get when you were young. The only difference now is KZbin presents a much better learning format than any classroom format. With KZbin you can pause a lecture, study any necessary background information needed to understand the content, then, go back to the video. david

[@darrenknight9320]

@@postholedigger8726 , you are right. The best thing about the world wide web is that you are not tied to only one train of thought, you can listen to people from all walks of life from all around the world.

[@dduyhai]

I do feel the same. However, this knowledge is relatively new and complicated in detailed so that our K12 teachers didn't have any chance to transfer it to her/his pupils. But now we can learn from Dr. Don.

[@paulholland7803]

Maybe if he was a teacher he'd find himself so hassled with disruptive or apathetic students, lesson schemes and evaluation, endless meetings that he'd have little energy left to enliven his teaching

[@taunteratwill1787]

So you need someone to calm you down? 😂

[@jexy_marshall]

It's a good thing that 13.8 billion years ago Cameramen were able to withstand 5,400°f or we'd never be sure about the visibility.

[@kelleychilton2524]

They just don't make cameras like they used to 13.8 billion years ago, Jexy. 😂🤣

[@denisdaly1708]

@@kelleychilton2524 probably a Kodak, or a Nixon, Cannon. The Japanese make great cameras.

[@Nickeman]

One of the best channels on youtube

[@junfenggao2417]

"It's a complicated calculation but a straightforward one". Not falling for that one again.

[@arthurhunt642]

That's like "It's not a question if, but when"? Overused for sure.

[@CollyDoo]

It's like trying to figure out what a woman is thinking.😂

[@robertbeerman8179]

flatearthlogic dot net why has nobody been able to get to the edge ?

[@altareggo]

@flatearthlogic dot net Or... only try to prove what you already believe... millions of Religious Nutcases can't be wrong!!

[@altareggo]

@flatearthlogic dot net lol I wasn't badmouthing any particular site at all. However, I've seen and thought through dozens of fine examples of "flat Earth logic" and come to my own conclusion that yes, like any heavenly body over a certain size, the earth is essentially globe-shaped. Also, I've noticed that the majority of flat earthers base the core of their beliefs on the Bible or in some cases tte Quoran. If one takes the Bible completely literally, the earth is round but not sperical, immoveable and at the center of a very small universe that may involve a dime or "firmament" of some kind. However, it is impossible to explain everything we have observed about the seasons, the solar system, Legrange points, eclipses and occultations, transits of various kinds etc, using any flat Earth model I've seen or heard of so far.

[@robbaskerville253]

This guy is a really great presenter. One of the best on you tube. Whoever does the scripts does a great job as well.

[@Markle2k]

Blue rectangle from 15:56 - 16:03

[@AntoshaPushkin]

This is not a "good presenter guy", he is an actual scientist who has some very significant acomplishments

[@fikretyet]

In 1995, he was a codiscoverer of the top quark (...) was a member of the team that discovered the Higgs boson in 2012. (wikipedia). Actually these are kinda public lectures of a decent scientist working in/with a very important scientific institution.

[@drdon5205]

I'm sure the presenter guy appreciates your kind words. I'm also sure that the presenter guy is the script writer.

[@robbaskerville253]

@@drdon5205 true, I was typing my comment instead of watching the credits.

[@rnnyhoff]

It is "mind-blowing" and in all rational aspects, seemingly inconceivable. Might as well be infinite if the visible universe is 92 billion light years in diameter but its actual size 250X that. Great video explained thoughtfully and clearly. Bravo Professor Lincoln!

[@ENGLISHISBEST]

But they don't know that, it's just an estimate until proven.

[@markuse3472]

@@ENGLISHISBEST I believe his "...250X" use made that clear.

[@benlonghair]

"Space is big. Really big. You just won’t believe how vastly hugely mindbogglingly big it is. I mean you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space." -Douglas Adams

[@spencerhardy8667]

"Time is an illusion. Lunchtime doubly so." - Douglas Adams.

[@spencerhardy8667]

The universe is a sphere because it radiates outward from your point of view until you can't be bothered anymore in all directions

[@spikespa5208]

@flatearthlogic dot net One more time, heh? Okay, I give up. Got other things to do with my day. Have a nice (delusional) life.

[@trainhound1732]

Who cares really how big it is. Is anybody ever gonna see it or go there? I don't have the strength to go to Walmart. The edge of the universe? I hope there's at least a bulk barn there for snacks on the way back..

[@kelleychilton2524]

@@trainhound1732 I saw the edge of Wal-Mart once, but it was too far so I turned back.

[@yolandacroes5491]

I have been fascinated with space since I was a child. Unfortunately I’m physics and mathematically challenged. Thanks for making this awesome knowledge understandable for people like me.

[@TheToxicWaltz121]

Yeah me too love it ive got books and books on space its just so facinating till theend of time.

[@minhnguyen-mk9om]

no matter how smart we are how advance we are but compared to the Universe we are nothing, the mystery of the Universe has nothing to do with math, physics but in the eyes of scientists they think that human intelligence someday may solve it, nah we are curious but at the same time we are delusional and arrogant, the mystery of this Universe is not a mathemathical problem, it is beyond our understanding

One of my favorite quotes by Douglas Adams: > Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.

[@zemoxian]

Booting up my Total Perspective Vortex so that I can see all 23 trillion light years at one time...

[@MostafaZeinali]

Next video should be, How big is the "Whole Sort of General Mish Mash"?

[@123bug]

This about sums up how and why this is al a fantasy. If this were true, there would be actual measerments and numbers. Scientists saying space is big, that is no science man, it's deceitfull fantasies... Man.. who makes this stuff up? The Balooney Tunes? 🤣😂

[@samuellourenco1050]

@@123bug Try to measure Earth's diameter without being able to travel, and lets see what numbers you are able to come up with.

[@123bug]

@@samuellourenco1050 yeah so were Just talking a bunch of numbers in the air... It doesn't matter if you add a zero... It is still HUGE! The scientists have discoverd someting people: space is HUGE! 🤣😂 BTW this was pretty hard to type spinning with 60 MPH 🤗

[@ivanlandivar1741]

What a good explanation. Space, physics, astronomy, all they are fascinating.

[@Leo-eb1wl]

When you consider that the furthest man has been from earth is just 1.3 light seconds... Blows my mind

[@_LilRascal_]

Spike Flea furriest*

[@JohnSmith-im8qt]

@Spike Flea thanks for that I had no idea what OP meant. /s

[@tnekkc]

But our probes went futher.

[@brianrichard8310]

@@tnekkc Maybe, because of our probes, we are 1.3 light seconds out. I'm no scientist, but humans have only been from the Earth to the Moon. I think that's considerably less than 1.3 light seconds.

[@SWolffang]

Barry Miller this. 1.07 billion km far outweighs the 400k km round trip we’ve managed

[@nowkentapplegate5315]

I really appreciate the style of these presentations. Very clear concise and "straight forward" Thank you Dr. Lincoln..

[@josephstanton4872]

As clear as mud!

[@Bob-lw2kt]

Fog Brain's...just so "ignernt !" Lol.

[@markuse3472]

Your mama, too. 🤣

[@Guillaume2606]

@@josephstanton4872 For the simple minds: yes! With a little education it becomes clear!

[@bruinflight]

I try to measure how much I love this channel and keep coming up with infinities in my calculations! Please make more videos Dr. L! You're the BEST!

[@suokkos]

Have you tried quantization and renormalization?

[@jessicaembers924]

It's infinity, and the center is virtually everywhere.

[@johnnycincocero]

I was looking over the calculations on the chalkboard behind you and it appears you forgot to carry over the 1.

[@spuramshetty]

Johnny CincoCero 😂😂😂

[@bhgardeners1199]

I think that you may be correct but if you divide 1 by X-bxy the correct answer is reached ,ie the thinking explained in this video is entirely mind boggling and apart from speculating until new science is developed we can only ponder the inponderable!!

[@johnshilling2221]

Dr. Jones! You funny guy! Ha! Ha! Ha!

[@lena19191]

You are all wrong ...it’s a picture of a waitress note book , taking orders in a diner

[@zoltankhani]

Johnny CincoCero Omar khayam says Our talks occurred beyond a curtain We will disappear if the curtain falls off

[@Sesso20]

I can watch these videos over and over cause Ill never really grasp the grandiosity of it, lol. Its just mindbending, that humans are capable of such feats. Thanks Mr Lincoln for the great moderation. :)

[@Fantax92]

I come back to these videos every few years and it truly is amazing how much and how little we know at the same time. How big and how small we are. It messes with our primitive ape brains thinking about such scales

[@wuodanstrasse5631]

PLEASE, show at the least, a modicum of due respect for "Professor" Lincoln.

[@CarolynFahm]

The entire video, the entire series, the entire Fermilab channel is fascinating, and we are so fortunate that you chose to share the fascination of physics with me and other physics aficionados.

[@zady4481]

Some hints about the universe (Duniya in Arabic) are here in this video; if you have the patience, please go through it - kzbin.info/www/bejne/l3-clZSNeKmqerc

[@nixy7473]

He so calm and wise, is easy too learn some goodstuff

[@TheSongDuck]

Yes. Don Lincoln has the most understandable explanations of physics.

[@donbrunton9374]

Of course the universe is a buble. It appears flat because of unfathomable expansion.

[@RaviSadana-n7c]

Carolyn, question things rather than blindly following what you hear. Read my comment above and decide for yourself.

[@simev500]

A fascinating presentation. This has filled in some of the gaps I had in my understanding of what I have picked up here and there all these years.

[@Bob-lw2kt]

Gaps huh ? ...such p athetic d orks. Now there's a filled query for ya. A rather chasmic event, for you d ork.

[@simev500]

@@Bob-lw2kt It appears you got up the wrong side of ur bed this morning, mr troll. Or did you roll off the high loft and knock ur noggin cranky? There's a grinch for ever y season 'n occasion. happy new year ::::]%^(>

[@burnerjack01]

I think the thing that is mind blowing is not just how big it is, but that no matter which direction, you're always looking towards the beginning.

[@MarkRai-ko1sk]

Yes. That's what yo momma said and I nodded in agreement 🤣

[@davidgagliardo3258]

Humans tend to think in terms of everything having a beginning and an end. To think that the universe just keeps going, with no end, is mind blowing.

[@JeffSpehar-ov1cn]

Their are never ending universes, let that sink in.

[@devinerentalsltd8708]

Coi Pansat if time is an illusion then nothing makes any more sense than anything else as you have no order of events.

[@jabibiszum6764]

David Gagliardo @ because the universe had a beginning we think everything has to have a beginning but I don’t think so.

[@devo196047]

I don't know, that it had no end seems like the natural conclusion to me. Closed just seems like a limited frame of reference.

[@devo196047]

@Coi Pansat There Big bang theory seems like a local phenomenon, a simplified frame of reference.

[@garyK.45ACP]

When you get to the end of the internet, you are almost there.

[@brianping3105]

the internet is infinite..

[@garyK.45ACP]

@@brianping3105 The internet is a Cul De Sac.

[@yamchagodofdestruction6327]

Internet is bigger than the universe

[@garyK.45ACP]

@@yamchagodofdestruction6327 Depends. Which of the internets are you talking about?

[@garyK.45ACP]

@flatearthlogic dot net YOU are the evidence I needed to prove that the price of admission to the internet is WAY too low.

[@salassian3162]

5:48 What I don't understand is how does one measure the temperature of space? I imagine that there was far more material dispersed throughout space, so one measures the temperature of that material, right? So it's not the temperature of space but little bits of stuff we're calling material. What am I missing? And how can one measure empty space. There's no material there to register a temperature, no?

[@mohdzikrya5396]

The thing I liked the most is realistic admission that yet we don't know a great deal. Every answer presents a new query about nature.

[@jrdeckard3317]

Quantum physicist walks into a bar. Bartender says, "Weren't you here tomorrow?" Quantum physicist says, "No, but I'll be back yesterday."

[@cosmicHalArizona]

Bartender takes long hit of 451

[@davidh.4944]

Bartender says, "Hey, we don't serve faster-than-light particles here!" Two tachyons walk into a bar.

[@dcocz3908]

I thought it was more like "Here's your bill? was the drink alright?". Response "Here's the money and I'll tell you once I drink it"

[@jiml8637]

The earth is concave

[@danal81]

A ha. Ha.

[@stroys7061]

Absolutely the size of the universe is measurable, the problem is Stanley just hasn’t made a tape measure big enough yet. Until then this was a great video! Thanks

[@codylujan]

Michael Collins my humor is extremely low.

[@markburch6253]

Lufkin "universal" tape measure? www.homedepot.com/p/Lufkin-Universal-Lightweight-3-8-in-x-50-ft-Hi-Viz-Long-Steel-Tape-Measure-HV15CME/205223239

[@TheAmethyz]

if you could make tape measure as fast as speed of light then space would be faster expanding than you could make it. If you could make it faster than expanding of the universe you might eventually see your tape measure reach you behind you and touching your back while you are rolling it forward faster than universe expanding.

[@stroys7061]

TheAmethyz The faster I read that comment the more sense it makes.

[@TheAmethyz]

@@stroys7061 My text sometimes is as hard to understand as quantum physics. But that makes it exciting for me to figure out what the hell i said when i read it myself.

[@davidlee516]

My favorite part. We know this is true because we proved it. And six hundred years ago the earth was flat.

[@TheFunkman]

Regardless, wherever you go in space, there you'll be.

[@roaster591]

Space is everywhere.

[@count7340]

Ipse Dixit BS.

[@heliomartins6681]

Welcome back, Doc, we missed you!

[@nowthatsjustducky]

I was expecting him at the start to go all Hitchhiker's Guide on us. "Space is big, really big. You won't believe how enormously big it is. You may think it's a long walk down the street to the chemist. But that's just peanuts compared to space. Listen..."

[@joinfranknow]

YOU SEE IT TOO.

[@Sootaroot]

"Then it starts to settle down."

[@navret1707]

Just ducky - the answer to the equations on the chalkboard is 42.

[@nowthatsjustducky]

@@navret1707 Well, belgium.

[@zerep11]

My biggest question has always been ... "What 'Space' does Our Universe occupy?" For example, think how Human Beings 'Occupy' Our Planet Earth, which is an 'Occupant' of Our Solar System that is an 'Occupant' of Our Milky Way Galaxy, and so on.

[@coevad3961]

I’ve watched maybe 6-7 videos of this person. So far this is the best one, because it’s the most comprehensible one, the others not so much.

[@zoeherriot]

"I mean, you may think it's a long way down the road to the chemist, but that's just peanuts to space.” - Douglas Adams

[@anthonycooper3191]

This was a really good video about truly mind-bending astronomical ideas. Thank you for creating and putting this video on KZbin.

[@Rumptertumskin79]

I knew this was my new favorite science series when he read my mind and knew I was immediately pondering "yo mama" jokes 🤣. Excellent series!!

[@shawnchaudry2126]

The edge of the universe is closer than my understanding of it.

[@robpagan1]

Assuming we are not in the center of the universe is the distance different in every direction.?

[@robpagan1]

Infinity + infinity + infinity + 1

[@robpagan1]

What’s outside the universe that it is expanding into? Empty vacant lot?

[@thomasgeise5745]

@@robpagan1 Either an empty vacant lot not yet filled with matter or a very puzzling "non-existence", as space itself is being stretched along with the expansion of matter and energy (as a side note, space itself -or rather spacetime as we would be more correct in calling it- is pretty interesting even if void of usual matter and energy, as it is still home to quantum fluctuations that can generate particles from nothing. That is a concept I still have to deeply understand and wrap my mind around). The Universe thus would be a growing bubble of sorts, not necessarily round per se but an enclosed space; all of this geometry mentioned here and in the video happening at more dimensions than we as humans can visualize (and the number of which is still being debated by scientists). This whole universal system is possibly happening in a several-dimensional "sea" of Universes (in which Universes "happen": are born, grow and end -maybe interact?- in a realm where time as we know it either doesn't exist at all or exists interacting with any number of yet unknown forces and energies through these additional dimensions in ways that we can't possibly conceive any time soon). The Existence is awesome!

[@mechanicjobs]

Nice

[@electronicjunky6940]

I did a back of the napkin calculation. Yep everything checks out!

[@dcocz3908]

I just ate the napkin

[@jiml8637]

The Earth is concave

[@jiml8637]

@@dcocz3908 The Earth is concave

[@felsner1]

LOL

[@marasmusine]

I discovered that the napkin is flat.

[@bcflyer99]

Don Lincoln knows how to explain the complicated in simple and visual terms. He's brilliant and I love his videos.

[@tnrk2011]

More videos are welcome on Space and Universe. The subject is very complex but, still easy to follow your slow and precise narration.

[@zhubajie6940]

“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”―Douglas Adams, The Hitchhiker's Guide to the Galaxy

[@andrewbesso4257]

I was just about to post the same quote. Great minds think alike. (Or fools seldom differ.)

[@davidwilkinson8431]

You're not lonely. This is the third of fourth time I read this quote here.

[@stuf9164]

Dear Don, You routinely blow my mind, my mind hurts.... THANK YOU FOR THAT! I LOVE the videos! I think it's wonderful that you're doing them. And, thanks for that, too! 😊

[@bikashthapa7316]

i'm glad that you came back with another wonderful lesson

[@steve-o5859]

I’m pretty sure that he is saying that “Objects in mirror may be closer than they appear.” Still like the explanation though.

[@Pigjes]

Thanks for all these great vids. Fermilab is my favorite science channel! Dr. Don explains it well!

[@ksqoo]

13:11 Inb4: flatearther's will quote mine the hell out of this statement

[@MichelKok]

The Earth is flat?!? LOL at around 13:20.

[@Lucius_Chiaraviglio]

From the combination of the 2 times he said this and the context, it sounds like this was on purpose, to show how observation from a commonly used vantage point (which, in the case of trying to observe the whole universe, we don't have a choice) can fool you.

[@greta8849]

The universe is 1 universe long and 1 universe wide. It has a depth of 1 universe and it weighs 1 universe. It takes 1 universe years to travel across the universe.

[@Dudleymiddleton]

Flatearthers live in a 2d world too - they'll forget that bit lol

[@Dudleymiddleton]

@@greta8849 That's pretty universal! :)

[@zeproo]

Dr., sir i found your channel by chance. This is best explanation ever.

[@fxdelusions77]

Have never ran into this channel, and just saw this in my feed, so I thought I’d give it a go. Was beyond fascinated with the science taught. You got a new sub out of me! Tyvm! Looking forward to binge watching your channel now 👍

[@thatswhatithought6519]

Ha gayy

[@winstoncat6785]

It is amazing that we've come in a century from the point where Eddington was asked whether it was true that only 3 people understood general relativity, and answered "who is the third?" (may not be true, but), to the stage where the general public can follow beautiful youtube videos dealing with topologies of the universe. GR is nowadays seemingly something for schoolchildren!

[@markuse3472]

It has always been for school children, except most people have given Einstein too much credit over the decades and feared, no thanks to pop culture, stating that obvious publicly. I will assume you meant General Relativity.

[@colinshawhan8590]

I can't wait for them to introduce my five year-old to tensor analysis!

[@CarlosSampaio1337]

Amazing. Kudos for the simple way of explaining. It blew my mind, I always considered a closed “infinite” universe, now I have two other views to take into consideration. Congratulations!

[@JohnLloydScharf]

Three views... And he said a closed universe NOT infinite.

[@richardcarter5314]

@@JesuIsTheOnlyWayToSalvation Are you talking about Goldilocks or Rapunzel?

[@zahidmunawar3981]

A very complex subject explained in a simple manner, great lecture

[@obadzayed4186]

This channel is so freaking awesome 😂😍😍, best physics Prof.

[@JDSleeper]

This channel and PBS SpaceTime give me my cosmology fix.

[@AFastidiousCuber]

@14:07 If space is flat or hyperbolic why must it be infinite, couldn't it still conceivably still have a boundary of some kind? Also, if space is elliptical why must it be finite, I can imagine something like a spring-shape having constant positive curvature but infinite length.

[@kelleychilton2524]

Yes, even if the universe is expanding into infinity, then it must still be 'pushing' or 'expanding' against something. Heaven? Hell? Multiverse? Nothingness?

[@kellyrobinson1780]

Dr. Lincoln, there are some things from this video I don't understand. In your "parallel ants" example: 1. You only depict the ants traveling longitudinally in closed space. Couldn't they travel latitudinally as well? Oh, wait; except for the equator, none of the latitudes traverse the ENTIRE circumference of the globe. Multiple lines that do THAT, MUST necessarily intersect at two diametrically opposite points on the sphere. Okay. But why, in the "saddle universe" do the ants not stay on the lines? Shouldn't that be what they do? Why do they begin crossing the grid squares diagonally? The straight, parallel lines are there; why don't the ants stay on them? There's another question, but I'll probably need to watch the video again to remember it. I'll get back to you. Thanks. I hope you can reply.

[@isaac1572]

I agree, The saddle universe ant animator appears to have gotten confused. The ants should have stayed on their lines. On your first question, just imagine tipping the sphere onto its side with the poles placed left and right on the sphere instead of top and bottom. All of the lines diverge and converge as they leave and then go towards the "poles". They don't hold their latitude like the tropics of Cancer and Capricorn.

[@ReportsOnChina]

Q: How far is the edge of the visible universe? Presenter: Well, watch my hands...

[@donalhughes2999]

why build a wall round a graveyard

[@berniesbend]

I hear there's a good restaurant there...

[@robertcarmosino6563]

Yes , but you need to make reservations.

[@johnandkayvest4917]

Is the virus there ?

[@MD-yp4qc]

Good food, no atmosphere.

[@agustinmanyari]

Si

[@tarugozaka-moko6968]

McDonald's..?

[@hammer86_]

This was the best explanation of the cosmic microwave background. I think I finally understand it. Might have to watch it a few more times though :)

[@milosstojanovic4623]

Its not actually very hard to understand, to put it as simple as possible, its residue of "cosmic explosion" but the thing that im not sure is how they(people who made instruments) knew that what they see is measure of microwave from "big bang" and not some "other" cosmic event that instruments measured.

[@keepcalm7453]

@@milosstojanovic4623 because it is omnipresent!!

[@dewiz9596]

I’m surprised no one has come out with a microwave oven branded “Cosmic” 😀

[@Spark-In-The-Dark]

Milos Stojanovic, it’s all theoretical garb and it’s actually deception because they act like they have enough evidence to act like their theories are logical...

[@Newshustle]

@@Spark-In-The-Dark Yeah it really sucks when a presenter talks as if what he's saying is fact. When he could have a more honest tone and it'd still be just as interesting.

[@ironDsteele]

This stuff is above my pay grade, but you make it interesting and much simpler to understand. Thanks and subscribed.

[@neilphelan145]

Fascinating but completely incomprehensible to me. I'm thankful that I came across this video because now I have a place I can go to learn as much about the universe that I'm capable of learing.

[@soldtobediers]

Incomprehensible is a mighty long word. It’s got 5 more letters than mockingbird. All I know is is the fact that God cannot be boxed in nor can He be boxed out. But He did give us the abilities to measure stuff.

[@charlesx593]

@@soldtobediers as it’s been said before ,science is the discovery of God mind.

[@Guillaume2606]

@@soldtobediers You can't be that foolish, that you believe some sort of god has anything to do with this! god is just invented by humans that couldn't understand how some natural events took place. Things that we now can explain were very difficult to understand in the old days. For instance: A rainbow was supposed to be a sign of god that there would never be a deluge again! That deluge never happened anyway, that;s completely impossible, there has never been that much water on earth, so where did it come from and where went it after the so called deluge?

[@soldtobediers]

@@Guillaume2606 Young Earth Creation

[@soldtobediers]

@@Guillaume2606 kzbin.info/www/bejne/m4fSaaWrrtt7l9U

[@antiphlex]

The older I get, the more it becomes apparent that math, or logical abstraction in general, is really the only way to understand anything.

[@holgerhansen5643]

No...look Claus Rahn.

[@richardthompson6079]

If you want to know how, it's the only way. If you want to know why, there are still mystics out there to help.

[@ahgflyguy]

@@richardthompson6079 If you're going to use "how" and "why" in talking about the causes of things or the interrelations between them, AND you want "how" and "why" to have distinct meanings (as well you should), then you probably use "how" to indicate that you want to understand the mechanism behind something, and "why" to indicate that you want information regarding and entity's intention. Mystics can have intention. But the universe itself? It seems unlikely , at least given what we know about the mechanisms behind how intentions are formed. Simply, "why" is a mostly nonsensical term to use with regard to describing anything on a larger scale than our current planet, since the vicinity around Earth is the only place in the universe where we've demonstrated (or gathered any evidence at all to suggest) that intentions exist.

[@PSP92262]

Math isn’t science

[@milosstojanovic4623]

That solely depends on what are you trying to understand, it cames down to philosophical, science or math understanding.

[@Trias805]

13:15 Too late, I've already started Flat Universe Society.

[@TearDownGenesis]

I'm part of it (Flat Spacetime)

[@petermontagnon4440]

As long as we ask questions.... You have closed your mind. I'm sad for you!!!

[@larrabeearms]

According to the first LAW of thermodynamics the THEORY of Big Bang is a big pile of crap. Laws ALWAYS beat theories.

[@24kGoldenRocket]

@Brian Waller The Milky Way Galaxy is not the Universe.

[@24kGoldenRocket]

@@larrabeearms Laws are theories. Newton's Law of Universal Gravitation has been overthrown by Einstein's General Theory of Relativity. (What? A theory trumps a Law? How can that be?) Gravity is not a fundamental force but is the result of the curvature of Space Time. Your GPS Satellite system is an application of the validity of that theory. At least you are in the right place to learn about science. Ask questions rather than making statements about that which you do not know..

[@markfromct2]

Eight minutes? I knew that? Don't think I could pass your Monday quiz sir. I actually attended a lecture given by Carl Sagan at Cornell University. Amazing

[@kelleychilton2524]

Admit it, Mark .... you failed miserably, didn't you. I'll bet Sagan tossed you out on your ear. 👂

[@duanecampbell5768]

Dr. Lincoln actually explained how the universe can be measured in terms this Arkansas educated man understood! I don't believe anyone could have been any more informative in such a small allotment of time. Loved it!!

[@scottbennett9531]

Brilliantly explained! I have heard so many attempts to convey this topic and this was the most salient and clearly conveyed of them all. Well done! x

[@And3aPet]

I just want to thank you, Mr Lincoln, for taking the time to create these presentations and explain the amazing discoveries of physics to the rest of us. And the t-shirts are fun, too.

[@bobigeiger]

Kiss his ring!

[@PNGPJS]

Fascinating stuff. He really does well explaining to the viewer in layman terms about a subject that most people know nothing or only a little about. Plus those of us who have a passion for learning more about life , the multiverse and everything

[@TonyEnglandUK]

But while he was presenting this, he was forgetting Uli's goodbye cake.

[@kelleychilton2524]

Assuming that there is a 'multiverse' which is only an unproven theory, aka a guess.

[@schechter01]

@MZT Then why don't you straighten it out with a video of your own? Since you've already listed his mistakes, surely you know the truth about the whole universe...right?

[@markuse3472]

@@mzt2929 Exactly what Einstein and many other scientists many times gave us and still do. I use Einstein as a named example due to most people being familiar with him than most other, actually better scientists.

[@milzijex7340]

Very poor explanation. He didn't explain anything clearly.

[@C6A7E9]

we'll never truly know, as much as we'd like to.

[@johnyringo6890]

You can’t say never. Its like saying we’ll never truly know when you will go to the toilet, then when you go to the toilet we’ll truly know from the smell.

[@johnshilling2221]

Do you mean we, as in the we of the here-and-now? Or do you mean the we of the human race? Throughout all time? I'm pretty sure that I will never know, unless I will...

[@Skindoggiedog]

Shut up, dummy.

[@Timelt51]

You already know. (It's complicated).

[@jasonking1284]

"How far is the edge of the universe?".... just over that hill up there....

[@inverse2k1]

not less than 11375 billion light years away.

[@phreepharrah9893]

"In the ordinary moral universe, the good will do the best they can, the worst will do the worst they can, but if you want to make good people do wicked things, you’ll need religion." Hutchins. Just thought I would preemptively attach this universal fact to this content just in case there were some ignorant loonies about.

[@highlysuspiciousnews8641]

A very tall and icy hill that all the governments of the world keep people away from 😄 🤣 😂

[@ZeHoSmusician]

Who is to say there's an edge, anyway? 🧐😎

[@highlysuspiciousnews8641]

@@ZeHoSmusician you know who

[@AFCAWorldBodybuildingArchive]

Mentioning a Yo Mama joke with that voice, gave him +25 sympathy instantly. 💪

[@ZeHoSmusician]

And within the first 30 seconds, no less! Surely, that is grounds for a small multipiier effect on top of the initial "+25"! :D

[@premdeepkhatri1441]

Absolutely perfect explanation thanks for video Dr.

[@guylaurent8138]

The universe starts with our mind and finishes with our mind...

[@nurglina]

Agree

[@truthbdared5464]

Yes, I couldn't agree more the universe is only as big as the imaginations of the white lab coat fairytale providers

[@nurglina]

Brian Sleeper are u a nicker?

[@truthbdared5464]

@@nurglina I don't think so. What's a nicker?

[@nurglina]

Brian Sleeper lol nvm. It’s a KZbin guy who’s got a show his name is nick. He makes fun of “lab coats” all the time

[@carpii]

Amazing lecturer. We often hear these facts being quoted, but to explain how we *know* them to be true without endless reams of mathematical proofs and in terms most people can understand, is a real gift

[@jdrosborough]

This is outstanding. Technically solid and explained easy enough for even the average neophyte to grasp.

[@mortalclown3812]

I wouldn't know if it's technically solid: I'm pretty right-brained, but...my sense of wonder has been met in full. 💫 David Butler's channel is one of my favorites, too, fwiw.

[@milzijex7340]

I don't think so.

[@I_SuperHiro_I]

The distance our parents walked to school in the snow, uphill, both ways.

[@kelleychilton2524]

And don't you ever forget it, Mister!!! 😂🤣

[@EC11161234]

This is so fascinating! And the funny part is that I was thinking just a couple of hours ago about how to prove the universe doesn't end (has no edge, no boundary). Then BAM 2 hours later this video drops in front of me about the very concept I was thinking about. I think I'm destined to solve this. :)

[@garyreams8123]

Dream on Eddie.,..........No,...I'm just LOL'ing. Go for it. As an ex rock and roll drummer and visual artist,...I don't think I could do it. But I do enjoy reading about where the heck me and the universe came from and how we got here.

[@thinking6307]

Yes..to your example. The potential(?) power of our minds to place a thought question consciously and subconsciously...and then have that subject or object appear..later before us...is Amazing when first realized. I see this in creative music. As a kind of simple rudimentary analogy...a drummer who carries out a base beat with one hand or foot and then a rhythm beat with another hand...at the same time..discovering an answer. A boogie woogie pianist pulling a base rhythm from one hand..and extemporaneously counterpointing with the other hand..finding an answer in the base.

[@yourlogicalnightmare1014]

Think about the boundary on a thought and you'll be on track to the answer. The universe is a thought in a mind with no conceivable limitation. Your body, the planet, galaxies, ... are an appearance in mind. Your body avatar is presented by larger mind, and animated by the apparent constrained mind which acts and believes itself separate from the whole. "Individual" mind eternally morphs from one experience-gathering form to another, contributing to the all-knowingness of the whole. Awareness itself is beyond description but approximated as ever-present, everlasting, unchanging, having no size, no shape, no materiality, no detectability, no frame of reference, no inside or outside, ... Awareness is the blank canvas upon which all experience falls and consciousness examines/reflects upon.

[@kylea1436]

Technically speaking, you can't ever prove the universe is infinite. That's about as impossible as proving something doesn't exist

[@kelleychilton2524]

@@kylea1436 True enough, it can't be proven. But if the universe isn't infinite then it must have a boundary. So, what lies beyond that boundary? Something must be there; it can't just be nothingness. So, it makes sense that the universe is infinite and ever expanding. It must fill the void that lies beyond its own limits.

[@shawndoucette9797]

Wait am I missing something? I swear I just watched 16 minutes to get the answer that it’s really big.

[@drdrinker4539]

Nah, its actually kinda small.

[@brianrichard8310]

Go back to sleep.

[@starman2337]

The answer you got isn't just how big, but how we KNOW it's as big as it is.

[@brianrichard8310]

@@starman2337 until you can point in a direction and say with absolute certainty WHERE the edge of the universe is, it is all a big guess. Why? Because we cannot see the edge of the universe.

[@starman2337]

@@brianrichard8310 But we know its MINIMUM size, and can defend how that was arrived at.

[@bariumselenided5152]

I just wanna say that I really love this channel. It is almost singlehandedly responsible for making me seriously consider going into physics rather than chemistry. I watch a fair bit of educational youtube and relatively few channels can make a subject sound so fascinating to make me think I’d enjoy seriously pursuing them and yet not so daunting that I think I’m not smart enough to. 3blue1brown does that for maths, NileRed does that for (applied) chemistry, and Don Lincoln and the writers behind the scenes do that for physics. If I end up one day pursuing a career in physics, I’ll cite this channel (both the answers it gave me to questions I had always had and the new questions it gave me after that) as pivotal in that decision.

[@Aaron-Fife]

So. Its been a year. Which did you end up choosing?

[@bariumselenided5152]

@@Aaron-Fife still on track for chemistry right now, kinda eying analytical chemistry. Although a KZbinr called AlphaPhoenix makes me think maybe materials science would be the cooler field. And I’ve yet to meet a math course I haven’t absolutely loved, so I do still think about math. What kept me from math so far has been that real math is problem solving, but all I’ve done up til now is learn formulas and stuff, so I have no idea if I’d actually be good at real math. The other day, though, I solved a problem of my own invention all on my own using calculus, and that felt absolutely amazing. Gonna finish my associates of science in chemistry for now, and I guess I still have some choosing to do once I get to a four year school

[@keithbronson9777]

Just one word...Plastics.

[@goaway7346]

What I find interesting (and humbling) is that all those plants/systems/galaxies/etc. that we do see, and will never get to visit, are just the tip of the iceberg. Beyond are many, many, many more that we won't even know exist - ever.

[@lesliefranklin1870]

I am looking at the title of this video: "How far is the edge of the universe?" This is a different question than "How big is the universe?" Suppose the universe is finite and we are closer to the "edge" than the "center." Then our location within the universe would have an influence on the answer to the original question.

[@antonychouffot7753]

Yes.

[@frederf3227]

Ah but it's possible for a finite universe to be centerless like how there is no middle of the surface of a planet.

[@djohle3430]

"flat means flat" - the only thing I was able to understand from this video. (jokes aside, great explanation)

[@dwaynelucier6624]

moron

[@aegisgfx]

Yeah but he never did answer the question because we never did determine if the universe was flat round or open. He only speculated that if the universe is round then it must be 250 times bigger than what we can see but that's still not an answer because we haven't made the determination of the state of universe.

[@abidnaqvi8485]

I finally understand. Well explained Don.

[@mrchickene1805]

I don't know much about this but it seems to me that if the universe has an edge, then it isn't an Universe.

[@dennisdonovan4837]

Great presentation on a subject that tends to be over simplified... I’m anxiously awaiting the “topologically entangled dimensions” that will, I hope, all add up to … “42”.

[@TooLameToDie]

I'm sure that would have tickled Douglas Adams to no ends if it turned out that way :) edit: auto correct sucks.

[@SpaceCadet4Jesus]

You'll find that on the restaurant at the end of the universe.

[@artvandelay4545]

That's a pretty Deep Thought bro.

[@kelleychilton2524]

It adds up to 12.

[@kelleychilton2524]

@@SpaceCadet4Jesus And it'll undoubtably be a McDonald's. Would you like fries with that, sir?

[@nachannachle2706]

Brilliant expose and breakdown. I love this channel to the edge of the universe...and back.

[@MRBIGGDADDYWIGGS]

5 months later and My Headache is Still Expanding.

[@brianrichard8310]

TROGLODYTE

[@brianrichard8310]

@Bellatrix Braojos bite me!

[@pitbull2005]

Your head must be infinite then!

[@brianrichard8310]

Maybe what you need is a "dark matter" enema. LOL.

[@BuFFoTheArtClown]

It's amazing how philosophers like Aristotle and Ayn Rand have reached the same conclusions. Brilliant individuals!

[@davidcastillo1340]

If you're not subscribed to Fermilab, you're doing it wrong.

[@DzeiEidz]

I don't subscribe to anything that mixes science with imperial units.

[@l0_0l45]

@@DzeiEidz Fuck off dude. That was a good joke 🤣🤣🤣 To hell with imperial units.

[@DeneF]

@@DzeiEidz You should be 50 and English like me. We were taught both because we had just entered the European common market and it was expected we would leave Imperial within a few years. That never happened but it turned out well for our education. Lol.

[@ossiedunstan4419]

I was subscribed until this video.Actually it was an earlier video of his LMFAO , how do i block fermilab.

[@anyfriendofkevinbaconisafr177]

If you're still wearing an Einstein t-shirt, you're still not getting it.

[@sriramulukrishnamurthy799]

I didn't understand much, but I did get the message - we are so small compared to what is out there! The same goes for our knowledge!

[@scottcupp8129]

And to think that some people just swear that we are the only civilization in space. There are probably hundreds of thousands of alien civilizations in this galaxy alone let alone the entire universe. in my opinion it is arrogant to think otherwise.

[@scottcupp8129]

But yes, you are right.

[@kelleychilton2524]

@@scottcupp8129 I have a suspicion that our major religions can find their origins in ancients man's encounters with extraterrestrials. Surely ancient man would have viewed these creatures as 'gods' or maybe these creatures presented themselves as gods, wanting mankind to 'worship' them in some way. It's fascinating to contemplate such a possibility.

[@scottcupp8129]

@@kelleychilton2524 I would have to agree with you.

[@scottcupp8129]

@@kelleychilton2524 And yes it is. Very fascinating indeed. Merry Christmas to you :)

[@fisica_altas_energias]

Great, I miss FermiLab 😭

[@makoyoverfelt3320]

Where did it go?

[@fisica_altas_energias]

@@makoyoverfelt3320 I returned to my country, but the Fermilab is the best place in the world .

[@hackupboulders]

@@makoyoverfelt3320 It slipped below the event horizon.

[@クロノシル]

You used to work there?

[@fisica_altas_energias]

@@クロノシル I 'm working with upgrade phase two CMS, process of track recognition in endcaps tô improve the trigger' process (level 1)

[@mrcrankshaft2000]

Question: If you were at the absolute edge of the universe. facing 180 degrees away from the center and took a step forward, Where would you be?

[@kelleychilton2524]

In deep sh*t.

[@roypruysvdhoeven1855]

You have that special talent to explain complex subjects in a more easy way to understand ! That is sure a gift Dr. Lincoln... I enjoy a lot to watch your video''s here ! Thank you !

[@josephstanton4872]

Did your son write this? Careful not to say dad!

[@stephenflowerday4038]

I'm no where near intelligent enough to be watching this, my head hurts.....

[@blindvisionary415]

LoL!

[@mattchristopher3220]

Mine too.

[@kristalmacleod3215]

whattttttttttttttttttttttttttttttttttttttt'

[@rositahl]

Great detail and explanation. Thank you

[@ελευθερία-ε2ο]

Every day we se less and less of the visible universe because it's expanding faster than the speed of light.

[@isaac1572]

Yes, the Milky Way is near the centre of the leading edge of the expansion. So the 13.8 billion light year view is back in the direction we came from.

[@Soundhound101]

What a great thought experiment! Brought down to an easy to digest level. Thanks a million Doc Linc!

[@josephstanton4872]

Could be explained much better using 3d models!

[@PBSTwo]

The white Neil deGrasse Tyson 😂 just watch his movements, the way he pauses and he’s even got the mustache.

[@johnshilling2221]

Except that Neil deGrasse Tyson is a snake oil salesman. Don, on the other hand, is an honest scientist.

[@YatiAcharya]

These videos are so very amazing 💪🏻❤️

[@robertclark3559]

Q if you removed the expansion of the universe and substituted the universe is it a flat, saddle, or spiracle? either as part of the redshift or intensity what would that show ChatGPT If you were to remove the expansion of the universe and consider a non-expanding universe, you would be working with a simplified model that doesn't represent the real universe as we observe it. In such a simplified, non-expanding universe, the concept of curvature (whether it's flat, saddle, or spherical) becomes more straightforward and can be determined based on the geometry of space. Here's how you would determine the curvature: Flat Universe: In a flat universe, the geometry of space is Euclidean, which means that parallel lines remain parallel, and the angles of a triangle add up to 180 degrees. Light rays travel in straight lines. In this case, if you look at a very distant light source, you would not observe significant distortions in the intensity of light or the redshift due to curvature. Saddle Universe (Hyperbolic): In a negatively curved universe (saddle-shaped or hyperbolic), the geometry is non-Euclidean. Light rays would travel along curved paths, causing the intensity of light from a distant source to exhibit observable distortions, and the redshift of light would also be affected by the curvature. Spherical Universe: In a positively curved universe (spherical), the geometry is also non-Euclidean. Light rays would travel along curved paths, but in this case, they would converge, causing the intensity of light from a distant source to exhibit observable distortions, and the redshift of light would also be affected by the curvature. In a non-expanding universe, the determination of curvature would primarily depend on the properties of space itself and the geometry of light rays, as opposed to the combined effects of cosmic expansion and curvature in the real, expanding universe. However, it's important to emphasize that the real universe is observed to be expanding, and the observations we make are consistent with a nearly flat geometry on large scales. The concept of cosmic expansion is a fundamental aspect of modern cosmology and is supported by a wide range of observational evidence. In the context of our observed universe, the concept of curvature is intertwined with cosmic expansion and cannot be separated from it.

[@craigfordyce4645]

"The extent of the heavens is something we do not and can not know." Nicolaus Copernicus