Dark Energy & The Big Rip - Sixty Symbols

Ғылым және технология

Third in our "trilogy" of extended interviews with Professor Ed Copeland.
See them all at: bit.ly/CopelandGoesLong
Visit our website at www.sixtysymbols.com/
We're on Facebook at / sixtysymbols
And Twitter at #!/periodicvideos
This project features scientists from The University of Nottingham
www.nottingham.ac.uk/physics/i...
Sixty Symbols videos by Brady Haran
A run-down of Brady's channels: bit.ly/bradychannels

Пікірлер: 1 400

  • @n20games52
    @n20games524 жыл бұрын

    These were great interviews. Now, after 6 years, I would love to hear an update on the Professor's experiments. :D

  • @leeris19

    @leeris19

    3 жыл бұрын

    Same

  • @docpayce1

    @docpayce1

    3 жыл бұрын

    +1

  • @giovannigarza5131

    @giovannigarza5131

    3 жыл бұрын

    Seconded

  • @kendemajoros4617

    @kendemajoros4617

    3 жыл бұрын

    Hear hear

  • @Meine.Postma

    @Meine.Postma

    3 жыл бұрын

    Probably failed

  • @agabrielrose
    @agabrielrose9 жыл бұрын

    "Smooth Tension" sounds like a contemporary jazz ensemble.

  • @6BURG9

    @6BURG9

    8 жыл бұрын

    Andrew Rose Or a healthy bowel movement

  • @panjin79

    @panjin79

    8 жыл бұрын

    Andrew Rose LOLOL, I was going to comment the same thing! Spyro Gyra, Weather Report, introducing Smooth Tension.

  • @Gnurklesquimp

    @Gnurklesquimp

    8 жыл бұрын

    Andrew Rose Haha i was actually thinking something along these lines

  • @sclogse1

    @sclogse1

    6 жыл бұрын

    A Tom Waits said in an Option magazine interview..."Jazz started wearing nylon socks. Eventually it was out by the pool."

  • @DeathBringer769

    @DeathBringer769

    5 жыл бұрын

    Reminded me of Liquid Tension Experiment, a project Petrucci took part in.

  • @MichaelKhaimraj
    @MichaelKhaimraj7 жыл бұрын

    I love how calm and collected Professor Copeland is. I could listen to him talk about this stuff all day.

  • @zatoichiMiyamoto

    @zatoichiMiyamoto

    4 жыл бұрын

    A S M R on a cosmological scale

  • @deusexaethera

    @deusexaethera

    4 жыл бұрын

    You'd be pretty chill about life too if you had tenure. ;)

  • @ReformedWhiteKnight

    @ReformedWhiteKnight

    4 жыл бұрын

    It's Michael - he just doing beat poetry with some ‘scientific’ terms. He must despise his audience for buying into that word salad. That guy didn’t even have a handful of so called ‘space’ in front of him. His talk of ‘tens of millions of light years away’ will make just about any engineer laugh! ;-) I see a long nose... Pinocchio comes to mind ;-)

  • @reggie9293

    @reggie9293

    4 жыл бұрын

    @@ReformedWhiteKnight classic engineer boomer

  • @ReformedWhiteKnight

    @ReformedWhiteKnight

    4 жыл бұрын

    Reggie - Not clear whether your comment was addressed to me, but what is a ‘classic engineer ... boomer?’ You sound like people should be familiar with that term, but I clearly am not ;-)

  • @ronaldwangdra9675
    @ronaldwangdra967510 жыл бұрын

    24:30 "Gravity sucks" - Professor Ed Copeland, 2014

  • @caldrago1470

    @caldrago1470

    9 жыл бұрын

    I'd say that it's quite attractive

  • @mayhemdiscordchaosohmy573

    @mayhemdiscordchaosohmy573

    9 жыл бұрын

    Caldrago Why thank you very much to notice! I appreciate that. Although I'm married (and probably BECAUSE I am married) I am happy to hear this! Thank you!

  • @smergthedargon8974

    @smergthedargon8974

    5 жыл бұрын

    "69 likes" I can't ruin this. It's too perfect.

  • @jaimeduncan6167

    @jaimeduncan6167

    5 жыл бұрын

    this hateful. quantum mechanics theories. We should alert the Southern Poverty Law Center

  • @NoActuallyGo-KCUF-Yourself

    @NoActuallyGo-KCUF-Yourself

    4 жыл бұрын

    Dark energy blows.

  • @sdcair
    @sdcair8 жыл бұрын

    Sixty symbols, one of the best channels on KZread

  • @ariessweety8883

    @ariessweety8883

    5 жыл бұрын

    And still is 🤙

  • @Vicvines
    @Vicvines9 жыл бұрын

    When I type in Professor Ed and then type a space, this bro is the first guy to come up. That's how baller he is. Real talk.

  • @KENDOG419ALSO

    @KENDOG419ALSO

    6 жыл бұрын

    WELL SAID, BRUH

  • @TexasFriedCriminal

    @TexasFriedCriminal

    4 жыл бұрын

    More likely that's how baller google is at predicting what to show you...

  • @BadKnightLv01
    @BadKnightLv0110 жыл бұрын

    This is the exact type of thing I like seeing on this channel

  • @KohrAh

    @KohrAh

    10 жыл бұрын

    ditto

  • @MDMAx

    @MDMAx

    10 жыл бұрын

    Take up a BSc in astrophysics. that's what you'll hear every week for 3 years.

  • @BadKnightLv01

    @BadKnightLv01

    10 жыл бұрын

    Thankfully I have these guys for that instead so I can save the trouble and stick to my comfy accounting major. Haha

  • @Dawdan4

    @Dawdan4

    5 жыл бұрын

    @@BadKnightLv01 yep this is much better, u can just pretend like u understand it, but u dont have to rly understand it :D

  • @GodwynDi

    @GodwynDi

    4 жыл бұрын

    @leicanoct In many ways. But just like investigating the aether eventually led to relativity, who knows where research into dark matter will go.

  • @radiowallofsound
    @radiowallofsound4 жыл бұрын

    I'm working overnight at home on forced quarantine, all alone and really quiet, listening to this soothing video... so peaceful! little moments of joy. I'm loving it

  • @Wib0

    @Wib0

    Жыл бұрын

    They locked you up for nothing.. So peaceful..

  • @TheRhinehart86
    @TheRhinehart8610 жыл бұрын

    "The forces which bind us together are more powerful than the dark energy that's trying to pull us apart" Lol, he sounded like Yoda for a second there :P

  • @IanLindstrom
    @IanLindstrom10 жыл бұрын

    Ed should put out a line of mugs w/ sayings: "I like my coffee like I like my energy: smooth & dark." for starters.

  • @davidripley2916

    @davidripley2916

    2 жыл бұрын

    -"Is there a Doctor on the plane❔" 😮

  • @Casowsky
    @Casowsky4 жыл бұрын

    24:47 "Just because you put on a bit of weight over the last few months and you've grown, you can't put it down to the accelerating universe" Thanks, Professor Ed for the gym inspiration I needed

  • @ahcripes7651
    @ahcripes76517 жыл бұрын

    I love this guy's voice, he's so calm sounding. Makes all this complex stuff sound less intimidating.

  • @onecanina
    @onecanina10 жыл бұрын

    Thank you prof. Ed and Brady. I have no words to say how thankful I am for these videos. I was waiting for the last one of this series anxiously! Thank you very much!

  • @sixtysymbols

    @sixtysymbols

    10 жыл бұрын

    you're welcome

  • @thekaiser4333

    @thekaiser4333

    8 жыл бұрын

    +Sixty Symbols Brilliant! Thanks. I shall tax dark energy asap!

  • @thekaiser4333

    @thekaiser4333

    8 жыл бұрын

    Destroyer_of_all_worlds Prove it.

  • @leepoling4897

    @leepoling4897

    8 жыл бұрын

    +The Kaiser prove he is

  • @thekaiser4333

    @thekaiser4333

    8 жыл бұрын

    Watch The World Burn That's not the point.

  • @Locut0s
    @Locut0s10 жыл бұрын

    I love how science and scientists are usually so open to all kinds of different explanations and theories. Ed here for example said he's working/worked on all three popular possible explanations for dark energy. Which isn't to say that science is open to "anything" mind you, it has to be a well defined consistent theory.

  • @Rpahut1

    @Rpahut1

    10 жыл бұрын

    Well, "openmindedness" sure is prerequisite for a string theoretician, yet I wonder if that's true for scientists in general.

  • @Aphetorusbull

    @Aphetorusbull

    10 жыл бұрын

    I too appreciated that he went into alternate theories, until one is proven true we continue to accept each as a possibility. The universe accelerating is based on our understanding of the speed of light and the critical mass of a star that goes supernova. Unfortunately there are some assumptions mixed in there yes they are also based in some significant empirical data but we simply cannot know for sure that our galaxies and the way stars react in it is the same in all galaxies. These are well justified assumptions but if light travels through really long distances differently then we currently have reason to believe then there isn't any dark matter and the universe isn't expanding and ... we're chasing a ghost of our own making. but until we can devise an experiment that contradicts the current evidence we have to move forward with the data we have and continue to look for the force of expansion.

  • @deeptochatterjee532

    @deeptochatterjee532

    7 жыл бұрын

    Locut0s Scientists are open to anything plausible and not disprovable (more the latter than the former)

  • @trespire
    @trespire10 жыл бұрын

    Fascinating subject, thank you Pr. Ed Copeland & Brady for putting this interview out, it is of a rare quality. I feel privileged

  • @massimilianotron7880
    @massimilianotron78809 жыл бұрын

    "You've been ripped by, You've ben pushed by, A Smooth Tension Tuturutururutu, tururutu, tururutu..."

  • @user-js8jh6qq4l

    @user-js8jh6qq4l

    6 жыл бұрын

    Rip in pieces

  • @user-js8jh6qq4l

    @user-js8jh6qq4l

    6 жыл бұрын

    Big RIP

  • @sherlockholmeslives.1605
    @sherlockholmeslives.16055 жыл бұрын

    It's lovely to have a true physics expert who is so enthusiastic about his subject.

  • @bartkwezelstaart9306
    @bartkwezelstaart930610 жыл бұрын

    That moment that the professor is exited in his explanation and smiles but while doing so realises that most people don't quitte get what he means and therefore he then revokes his smile :'-)

  • @joetylerdale
    @joetylerdale7 жыл бұрын

    As I watch these videos, I get a tad frustrated because I get stuck and can't follow seamlessly a segment, then all of a sudden he pulls me in by explaining in a way I can understand! What a great feeling to grasp even a small part of the puzzle!

  • @richardbennett4365
    @richardbennett43658 жыл бұрын

    DUST!!! Finally, I heard someone define what is meant by dust. I've been waiting for this definition for a very long time. Thank you, Professor Copeland.

  • @TehKhronicler
    @TehKhronicler8 жыл бұрын

    What an awesome field of science to be an expert in, must feel a beautiful thing to be alive in the mind of Ed Copeland

  • @BrianBaldridge
    @BrianBaldridge10 жыл бұрын

    Dr. Copeland and Brady make a rare team. I've watched every one of these and I beseech you to make more! Actually, with every member of the Sixty Symbols, and Periodic Videos and Numberphile teams!

  • @theonetojump
    @theonetojump5 жыл бұрын

    Whenever I feel a bit depressed, after hard day at work etc, Prof. Copeland's videos are the ones I go to. Physics and astronomy aside, there's something therapeutical about the way he talks.

  • @mrspidey80
    @mrspidey807 жыл бұрын

    Short version: Don't panic. The universe is probably just going through a phase.

  • @jpian0923

    @jpian0923

    7 жыл бұрын

    Yeah, the teen years for a universe is no less chaotic then that of a human. It's just a growth spurt.

  • @nmarbletoe8210

    @nmarbletoe8210

    6 жыл бұрын

    there is a big rip coming, but it's just the pants

  • @rosomak8244

    @rosomak8244

    3 жыл бұрын

    Don't panic. It's all made up BS anyway.

  • @truetrepid2267
    @truetrepid22677 жыл бұрын

    24:55 roasted

  • @edd8914

    @edd8914

    6 жыл бұрын

    BRUTAL

  • @jopaki
    @jopaki8 жыл бұрын

    What a privilege to hear cutting edge theory from this great mind

  • @MrPhred
    @MrPhred10 жыл бұрын

    I really admire Professor Copeland's ability to describe such complex ideas in way that allows me to understand them (a bit, at least). I could happily listen to him for hours on end. Makes me wish I'd taken far more physics classes when I had the chance.

  • @kappesante
    @kappesante10 жыл бұрын

    after a night with friends talking about their odd convictions (light is alive and have conscience, dark matter is empty space between atom's nuclei and electrons around, life after death end resurrection) i have to thank you really hard for these 30 minutes of peace.

  • @Baud2Bits
    @Baud2Bits10 жыл бұрын

    Probing Ewoks? That was a Star Wars film I didn't see.

  • @apburner1

    @apburner1

    10 жыл бұрын

    I saw it. I am currently in therapy dealing with it.

  • @IAmNumber4000
    @IAmNumber40008 жыл бұрын

    Lol, looks like if you shoot for the moon you WON'T land amongst the stars, since the space between us and those same stars is expanding faster than a speeding bullet. That's right kids, if you shoot for the moon you'll die a cold, lonely death in the unforgiving, hellish vacuum of space.

  • @melvinkenyanya9613

    @melvinkenyanya9613

    8 жыл бұрын

    kenyamoja

  • @leftysheppey
    @leftysheppey8 жыл бұрын

    Brady, you are an insane journalist. You can stay focused on things like this and not only that, ask coherant and interesting questions. You're truely a gift to the world

  • @terapode
    @terapode10 жыл бұрын

    I will have to watch this video at least five more times to understand what he is saying. Great video. Brady, you are making an amazing contribution to science, heating up curiosity among general public. Good job!

  • @BrekkaJones24
    @BrekkaJones245 жыл бұрын

    I can listen to him ALL DAY

  • @NESNESN64
    @NESNESN6410 жыл бұрын

    I'm in some bad back pain, this took my mind off it for a while, thank you! I have so many questions about dark energy and dark matter, this has been one of the best videos for me that you have put out :)

  • @Verrisin
    @Verrisin4 жыл бұрын

    To me, dark matter and dark energy sound like the same thing: Something between galaxies, that is 'pushing' on the galaxies. - It pushes a galaxy together, seen as dark matter. - It pushes galaxies apart, seen as dark energy. (oh, and I don't think either was properly observed on smaller scales...) - Maybe _very empty_ space has 'negative gravity' and effectively pushes matter away from itself.

  • @ragir
    @ragir2 жыл бұрын

    I've been coming back to these every year or so and I gotta say I learn more every time. I'd love to see an update on how things are, since it was a few years now!

  • @JosefHabdank
    @JosefHabdank10 жыл бұрын

    Just because you put on weight, you can not put it down on the accelerating universe :) :) Headshot! 24:45

  • @Swarm509

    @Swarm509

    4 жыл бұрын

    Fatality!!

  • @alextaunton3099

    @alextaunton3099

    3 жыл бұрын

    I howled

  • @EntrE01
    @EntrE0110 жыл бұрын

    this was absolutely EXCELLENT!!! what a great video!

  • @mg42sd
    @mg42sd7 жыл бұрын

    Such a calming and soothing voice! It makes great lullaby, while still teaching.

  • @ragnkja
    @ragnkja10 жыл бұрын

    Yet another incredibly interesting interview. Thank you so much for taking the time to make these.

  • @StereoSpace
    @StereoSpace9 жыл бұрын

    Wow. That was deep and complicated.

  • @uapnz0698
    @uapnz06988 жыл бұрын

    Wonderful questions and understandable answers. Thankyou guys,

  • @Xiloscient7
    @Xiloscient710 жыл бұрын

    Thank you so much for these video's Brady. I'm a computer science major, but physic's like this is something I'm truly passionate about and I don't think I would have any other good source for supremely intelligent conversation or explanations on the topic if it wasn't for you and your videos.

  • @bobbobington2921

    @bobbobington2921

    10 жыл бұрын

    Wait so your town is called Computer Science? Or are you pushing for more public computer science programs in your town? Or are you part of the Computer Science Party? Or do you simply mean that you play Sim City?

  • @bl8896
    @bl88965 жыл бұрын

    Ed's becoming one of my favorite humans to learn from. The chill is real with Ed.

  • @MrPoffersher
    @MrPoffersher10 жыл бұрын

    Few things make my morning like a new 34 minute Sixty Symbols video.

  • @JustOneAsbesto
    @JustOneAsbesto8 жыл бұрын

    Wasn't Smooth Tension a Kenny G album?

  • @Mike-nf6nf
    @Mike-nf6nf10 жыл бұрын

    Great work, Brady & Prof. Copeland!

  • @quintessenceSL
    @quintessenceSL10 жыл бұрын

    Really like these long form videos, especially for difficult subjects.

  • @robertoertly926
    @robertoertly9269 жыл бұрын

    19:01 "So it's just Kind of this Insidious thing that's everywhere that's just making it get bigger." :O Dark Energy is McDonalds! Quick someone tell the astrophysicist!

  • @futuristalpha4792
    @futuristalpha47928 жыл бұрын

    24:48 no chill

  • @TedMan55

    @TedMan55

    6 жыл бұрын

    Ethan Moyer "thanks ed"

  • @passthebutterrobot2600
    @passthebutterrobot26005 жыл бұрын

    Fascinating video & brilliantly explained. I can't believe I actually understood most of that. I'm sure they'll crack it in the end. I hope I'm still alive when they do.

  • @zalikster
    @zalikster10 жыл бұрын

    Ed's quite good at explaining things. I really enjoy these videos, as well as the numberphile vids. Full props to Brady!

  • @S4R1N
    @S4R1N8 жыл бұрын

    Smooth Tension. Stealing this for a band name :P haha

  • @NeonsStyleHD
    @NeonsStyleHD10 жыл бұрын

    Excellent video, watched the whole thing n loved it.

  • @hakkbak
    @hakkbak10 жыл бұрын

    Brady has been producing many high quality videos in his channels lately, keep up the good work! Love it.

  • @juandefelix
    @juandefelix7 жыл бұрын

    These videos on the extended Ed Copeland interviews are great!

  • @avg0096
    @avg00967 жыл бұрын

    24:48 S A V A G E

  • @Goproflying
    @Goproflying10 жыл бұрын

    Are you doing a video on the BICEP2 result?

  • @Locut0s

    @Locut0s

    10 жыл бұрын

    I'm interested in this too. The results, if repeated/backed up, are one of the biggest breakthroughs in cosmology in decades!! It's a perfect topic for 60 symbols. My guess is Brady is on it though :P

  • @mukulvdhiman

    @mukulvdhiman

    10 жыл бұрын

    They must be, but it takes time.

  • @lexagon9295

    @lexagon9295

    10 жыл бұрын

    Great timing in the light of the fact that Brady just did a similar one-on-one video with Prof. Copeland about inflation.

  • @lexagon9295

    @lexagon9295

    10 жыл бұрын

    Cawfee Dawgg I find that slightly improbable, as this is a popular science channel, not the Nobel committee. Brady has mostly taken the perspective of "Ok this (fair enough, purported) discovery hit the news, can you explain what the results of this research actually mean?". They even did a video on the faster than light-neutrino anomaly a few years back, with the specific intent to communicate the improbability that the results would hold up to scrutiny.

  • @lexagon9295

    @lexagon9295

    10 жыл бұрын

    Dude, it's not like I can help it :D

  • @clark_cant
    @clark_cant9 жыл бұрын

    Thank you Brady and to professor Ed Copeland for making this incredibly insightful video!

  • @thebigbaird
    @thebigbaird10 жыл бұрын

    I love the long form interviews. Keep them coming.

  • @tabularasa0606
    @tabularasa060610 жыл бұрын

    Question: If galaxies further away appear to be moving away faster. doesn't that mean that longer ago it was moving away faster and expansion is actually slowing down? Question 2: Why should the pressure come from inside the known universe? It can also be a pulling pressure from outside the known universe.

  • @hopesy12u4
    @hopesy12u410 жыл бұрын

    From what I understood, dark energy's effect is negligible in areas with high matter density, and weaker in areas where there is less matter. During the Big Bang, was it, at first, immensely dense? If it was, does that explain why dark energy was weak at first, but then, as maybe matter became more spread out due to its momentum, dark energy became strong again with greater influence?

  • @hopesy12u4

    @hopesy12u4

    10 жыл бұрын

    oh, okay, thanks.

  • @hopesy12u4

    @hopesy12u4

    9 жыл бұрын

    Vishal Patel thanks bro :)

  • @fiona9891

    @fiona9891

    9 жыл бұрын

    Vishal Patel I came simple wikipedia too.

  • @MateuszZwierzycki
    @MateuszZwierzycki10 жыл бұрын

    I can listen this man for hours. Great job Brady.

  • @leonardodavinci303
    @leonardodavinci3037 жыл бұрын

    Fabulous trilogy. The most erudite explanation I have ever seen of such complex matters. Was it Einstein or Arthur C Clarke who said the the universe is not only strange. Its stranger than you can imagine.

  • @mountainhobo
    @mountainhobo10 жыл бұрын

    "Space between the galaxies is stretching" That's the question, though. Is it stretching, or is it growing? If it was stretching, the dark energy density should be dropping. Since it does not appear to be dropping, perhaps space is growing in tiny discrete cells.

  • @DieFoe

    @DieFoe

    5 жыл бұрын

    mountainhobo my thoughts exactly. I think it has something to do with positive, negative and variable temperature of matter. The universe to me is unquestionably growing like a mushroom. The properties of the difference in temperature of all matter gives the different properties that both push and pull opposite matters. Likewise variable temperature matter seems to not necessarily effect anything. However it can under extreme circumstances causing black holes and generally will eventually have an opposite reaction on the far side of the temperature scale when it reaches a certain point. There can only be an unimaginable flux in matter, temperature and energies. All depending on the amount of time taken to eventually have this reaction while the amount of positive or negative temperatures of mass impacts the size of a reaction and the masses in of the reaction will always become proportional to the time, matter and energy either positive or negative temperature types(universe/black hole). Generally we are in an extremely well balanced system that both creates and in a sense destroys the known spectrum of energy. But Nothing is really ever lost or gained on any level.

  • @watcher314159
    @watcher3141594 жыл бұрын

    17:20 Did, did he just suggest that we might literally end up with a negative space wedgie?

  • @Niosus
    @Niosus10 жыл бұрын

    Thank you for this video. Really enjoyed this series.I hope the stats on there are good because I'd definitely like to see more like this. Good work Brady!

  • @TheLaubum
    @TheLaubum10 жыл бұрын

    Finally! I've been waiting for this one for a while now, thanks for the great stuff you put out.

  • @Destro7000
    @Destro700010 жыл бұрын

    I love Big Rip Theory! Anyone interested in this subject should read Arthur C. Clarke & Stephen Baxter's 'The Time Odyssey' series (3 books) as it's a central theme :)

  • @unvergebeneid

    @unvergebeneid

    10 жыл бұрын

    Really? It's pretty much the worst fate of the universe that I can imagine.

  • @Destro7000

    @Destro7000

    10 жыл бұрын

    It's a great theory, and a really intriguing topic to think about. At a finite time in the future the scale of all matter will become infinite!

  • @unvergebeneid

    @unvergebeneid

    10 жыл бұрын

    Yeah, but the heat death you can kinda fight for a while, the Big Bounce at least has a nice infinite rebirth cycle thing going for it ... but the Big Rip? There's absolutely nothing anybody will be able to buy them time and it's ultimate.

  • @Destro7000

    @Destro7000

    10 жыл бұрын

    Well y'know I don't think I'm gonna be around for that long xD so it's nice to view as a concept. I mean every creature's gotta die sometime, most of the ones in our galaxy will live & die in events unrelated to the death of the Universe, and it's hard to really relate to what we and all the other aliens will have evolved into by then. Perhaps we'll be 'memories preserved in frozen lattices of light' as Clarke puts it. Although when I say we...I guess I mean...them? :D

  • @pcuimac
    @pcuimac10 жыл бұрын

    If dark energy rips everything apart in 'the end' aka far far future, isn't that in contradiction to the strong nuclear force? If a proton gets riped appart it would produce an endless stream of quarks which would produce new particles and high amounts of gluons. That would surely either bring the big rip to a halt, if the dark energy would not be high enough to overcome the strong force, or create endless amounts of mass that may cancel out the force of dark energy. Sadly I am not able to do the math for this anymore.

  • @kenithadams4861

    @kenithadams4861

    10 жыл бұрын

    Why would a proton contain an infinite number of quarks?

  • @greeny202ab

    @greeny202ab

    10 жыл бұрын

    Yeah I think he is saying in more simplistic terms that the dark energy will gradually overwhelm all other forces as matter begins to dissipate.

  • @GSandSDS

    @GSandSDS

    10 жыл бұрын

    Quote from the official paper (about what happens when the nucleons themselves are torn apart): "In all likelihood, some new physics (e.g., spontaneous particle production or extra-dimensional, string, and/or quantum-gravity effects) may kick in before the ultimate singularity, [...]". In other words they don't really know what happens then. Official paper: arxiv.org/abs/astro-ph/0302506

  • @doodlefox9837

    @doodlefox9837

    10 жыл бұрын

    Because everything will eventually reach light speed due to the influence of dark energy, doesn't that make it impossible for any type of matter to exist? Not even the strong nuclear force would be able to withstand light speed I think. I know very little about the subject though.

  • @mayhemdiscordchaosohmy573

    @mayhemdiscordchaosohmy573

    9 жыл бұрын

    Ok, here's what I don't get...if the universe is flat, then how can we be 3D? There are stars and galaxies in EVERY direction, ANY angle you can point include 360 degrees and there's galaxies, stars, gas....basically matter is existent everywhere! I'm not well read on this subject!

  • @benjhabert
    @benjhabert10 жыл бұрын

    Amazing video/interview. This really is fascinating, thank you!

  • @cataluscore8727
    @cataluscore872710 жыл бұрын

    Love how in depth this is! Great job

  • @insu_na
    @insu_na10 жыл бұрын

    Isn't gravitational influence decreasing inversely proportional to the distance squared, according to our current understanding? What if it isn't as "clear cut" and instead of decreasing asymptotically towards 0, goes negative into repulsion over extreme distances? Well. I have no idea what I'm talking about tbh. but it sounds somewhat strange to me that unlike all other elemental forces, gravity has no counterpart...

  • @kento7899
    @kento78995 жыл бұрын

    Aw. He was so excited to get his cup. :( Someday I want to see the cup.

  • @Ledon177
    @Ledon17710 жыл бұрын

    Watching this trilogy felt like an actual privilege. Thank you for sharing your knowledge with us.

  • @BladeRunner-td8be
    @BladeRunner-td8be3 жыл бұрын

    Amazingly I was able to understand, on a basic level at least, almost everything in this video. And it's because Mr. Copeland explains so well.

  • @djscottdog1
    @djscottdog110 жыл бұрын

    just from this video i thought maybe the universe is conical in shape and everything in on the curved face of the cone and so it has a tendency to accelerate down from the tip (where the big bang happened while also spreading away from everything else as it gets wider towards the base , in this thought gravity would still have effects on other close things and would bend the face of the cone as in einstein's theory. thats what i got from this video , im probably completely wrong but i always think up things like this trying to think outside the box and maybe one day i might be right

  • @Geewip9999

    @Geewip9999

    10 жыл бұрын

    I thought about the exact same thing... makes sense right?

  • @christopherriley3812

    @christopherriley3812

    10 жыл бұрын

    "conical" jets emerge from the most some of the most energetic phenomena yet observed.

  • @djscottdog1

    @djscottdog1

    10 жыл бұрын

    ***** yeah i think so

  • @christopherriley3812

    @christopherriley3812

    10 жыл бұрын

    they emerge from supermassive black holes at the center of active galaxies. active galactic nuclei. fun stuff!

  • @ElegantEnsue

    @ElegantEnsue

    10 жыл бұрын

    But theres a force causing the universe to accelerate, thats the problem, we don't know what the force is. Its not about things moving away from each other or tendencies of moving objects, its some force acting upon everything to accelerate the expansion of the universe, i.e. some force in the opposite direction but of greater magnitude than the attractive forces in the universe.

  • @rich1051414
    @rich10514148 жыл бұрын

    Einsteins theories didn't work on the small scale, it is entirely possible they also do not work on the very very large. I am a very skeptical person, but seeing how the physics we experience on the macro scale emerge out of the alien world of quantum physics, really makes such ideas plausible, that a different physical model emerges out of Einsteins' model of general relativity. Eventually, i do feel that even the physics of the incredibly vast will be able to explained all the way down to the perspective of quantum physics, but honestly, the scientists cannot and will not wait that long, and I totally understand if a new field of physics will need to be created in the meantime :) I would be perfectly happy with 3 separate physical models, as long as they solve problems and answer questions. I have no hope that all models will be united in a singular model before my death however. It is simply too hard of a question with too much incomplete data. If you had a fish that was as smart as Einstein, but lived all his life at the bottom of the ocean, and you asked it to draw the picture of the earth, could you imagine what he would draw? It would be so utterly wrong, even if incredibly clever, because the fish was missing too much information to possibly happen to imagine such a thing as the earth as it is. And this is the disadvantage I feel we are in when trying to model the universe.

  • @coopergates9680

    @coopergates9680

    5 жыл бұрын

    We'd have to leave the local group? lol

  • @Beer_Dad1975
    @Beer_Dad197510 жыл бұрын

    Really been enjoying these longer format videos, thank you!

  • @birdy_coolbeans
    @birdy_coolbeans10 жыл бұрын

    I've been waiting for this, thanks Brady and Ed

  • @Othelbark
    @Othelbark10 жыл бұрын

    I'm a bit confused about how dark energy could pull apart a gravitationally bound object (like a galaxy). Unless dark energy is increasing but I thought dark energy was either constant or decreasing and that it's only increasing relative to the pull of everything else because unlike matter/dark matter/radiation it's not being diluted by the expansion. So I can understand how other galaxies will eventual be accelerated out of view but within a gravitationally bound object the push of dark energy is surely constant. Right?

  • @coopergates9680

    @coopergates9680

    5 жыл бұрын

    Gravitationally bound systems may stay gravitationally bound if there is *not* a big rip.

  • @unpronouncable2442
    @unpronouncable244210 жыл бұрын

    "gravity sucks" that's what I got from it

  • @AB-wh8po
    @AB-wh8po Жыл бұрын

    "The forces that bind us together are much stronger than the dark energy trying to rip us apart". Quite an inspiring little sentence in light of political and social events over the last few years

  • @TheDarkerPath
    @TheDarkerPath10 жыл бұрын

    Love these long-form interviews!

  • @Tesla_Death_Ray
    @Tesla_Death_Ray10 жыл бұрын

    What does 'down the gym' mean?

  • @AphoticNZ

    @AphoticNZ

    10 жыл бұрын

    Gin? He's a fan of gin? Idk I thought I heard gym at first too

  • @yotty97

    @yotty97

    9 жыл бұрын

    it means "down at the gym"

  • @MurrLin
    @MurrLin10 жыл бұрын

    Lol @ 24:50

  • @effectingcause5484
    @effectingcause54842 жыл бұрын

    3:07 "By recent past btw I mean within the past 7 billion years or so" This killed me laughing!

  • @RealDealHolyfield2099
    @RealDealHolyfield209910 жыл бұрын

    At 31:00 The single photon in a box example was right-on. Very clear concept. That helped tie the whole video together, along with the tapering hand gestures. Thanks for the video, Brady.

  • @sebastianmeid681
    @sebastianmeid6819 жыл бұрын

    What if the universe isn't expanding, but just spinning? And this "dark energy" is just the normal acceleration, which is why it's got uniform density?

  • @zaKkyBoY121

    @zaKkyBoY121

    9 жыл бұрын

    Sebastian Meid how can the universe spin if its flat, also the universe is thought to be infinite, its not like a planet. The universe is expanding, Edwin Hubble discovered it in 1929

  • @sebastianmeid681

    @sebastianmeid681

    9 жыл бұрын

    I'm not sure how to address your comment.

  • @zaKkyBoY121

    @zaKkyBoY121

    9 жыл бұрын

    Sebastian Meid ??

  • @sebastianmeid681

    @sebastianmeid681

    9 жыл бұрын

    Tyler Brown that was the most comprehensive and intuitive explanation of the phenomenon anyone has given me so far. Thanks!

  • @roncollins1701

    @roncollins1701

    9 жыл бұрын

    That seems to make real sense to me better than this dark energy caper

  • @Lastindependentthinker
    @Lastindependentthinker9 жыл бұрын

    Hang on. maybe i'm oversimplifying. but if time flows differently in the presence of matter. i.e planets, blackholes etc. then we are looking at the gapes between galaxies in our slightly slower time reference frame in our galaxy. in free and open space, that is space between galaxies between galactic filaments. time would be passing faster at it's true natural flow rate. which also effects the speed of events unfolding in the reference frame which is driving the galaxy acceleration. I don't know how to do the math for this, i'm terrible at math.

  • @benninjin2215

    @benninjin2215

    9 жыл бұрын

    Gravitational dilation of time is a thing, but we are talking about a uniform effect that is smooth and reaching every corner of our observable universe. Not just the difference of time in large gravitational fields.

  • @yendorelrae5476
    @yendorelrae54763 жыл бұрын

    This guys's brilliance was really put on display when he corrected his own answer with 'well it is pushing, it is already part of the system'....most impressive!

  • @_ilsegugio_
    @_ilsegugio_7 жыл бұрын

    I used to watch mostly numberphile videos and now I'm closing the gap on 60 symbols one. a thing I found amazing is how clearly you witness Brady's comprehension of the physics involved improving over time. those Nottingham guys are made out of fabric of legends.

  • @shmellyx
    @shmellyx10 жыл бұрын

    Bacon.

  • @FrankHarwald

    @FrankHarwald

    4 жыл бұрын

    indeed, dark energy is actually bacon - only question remains: what is it's sauce made of? Is it gravy, cream sauce or something more exotic?

  • @KevinSolway
    @KevinSolway10 жыл бұрын

    "Dark energy" is a bad name, since once we can detect it, it's no longer dark. The scientific use of the term "universe" to refer to the small part of reality we can see is yet another very bad use of language.

  • @tobitege
    @tobitege10 жыл бұрын

    Awesome questions and great explanations for a mind-blowing topic! Thanks Prof Copeland and Brady!

  • @JeanPaulLopez
    @JeanPaulLopez10 жыл бұрын

    Always such a pleasure listening to Professor Copeland.

  • @XCyclonusX
    @XCyclonusX9 жыл бұрын

    Since Dark energy and dark matter as well has never been proven to exist outside of mathematics, isn't studying the source of those things akin to studying the source of fairies or leprechauns?

  • @XCyclonusX

    @XCyclonusX

    9 жыл бұрын

    Please point me to your source that proves dark matter/dark energy exist.

  • @XCyclonusX

    @XCyclonusX

    9 жыл бұрын

    My point is that when we observe something and decide that it must be because this or that exists we then risk falling into the my theory is fact fallacy. I have no problem with the theory of dark matter/dark energy. What I have a problem with is ideas becoming so fashionable that opposing ideas are summarily rejected and their proponents ostracized. Look to the climate change debate for an example of this.

  • @vane00kn

    @vane00kn

    9 жыл бұрын

    XCyclonusX You speak as if choosing pet theories is a global standard... it isn't.

  • @catStone92

    @catStone92

    9 жыл бұрын

    XCyclonusX the thing is, in physisics some advancements are made mathematically, where you start with what you know and try to derive the implications from that. You then try to prove what the math is telling you through observation. Likewise, theories that incompatible with what we know can be safely discarded, while theories incompatible with other theories just can't be incorporated into them. Just because you can't observe something doesn't mean it doesn't exist, and if you can understand the origin of these unobservable things, you might just get a beter grasp of what makes the universe tick

  • @XCyclonusX

    @XCyclonusX

    9 жыл бұрын

    Pedro Gusmão "Just because you can't observe something doesn't mean it doesn't exist." welcome to the camp of Intelligent Design.

  • @mrvlhs
    @mrvlhs10 жыл бұрын

    I'm sorry but as interesting as the subject is and as much as I appreciate the 30min contribution to help spread this knowledge, I get tired and bored of watching the video because it's essencially a radio show with image. As I see it there are two options here: if you're going to use image, make it dynamic, envolving and interesting (you don't see many television shows with 1 shot, do you?) or don't use image at all and host a podcast or something similar. Please take this as constructive criticism. Cheers!

  • @Supernov4

    @Supernov4

    10 жыл бұрын

    Couple things: It's not a tv show and they probably do not have time for any extra hassle. And the information content is interesting enough not to get bored, at least speaking for myself. There's always the option of just letting it run and just listen while you do something else if that's what you want. But I get where you're coming from and would like to see it being more "entertaining"(in lack of a better word) too. Just don't really expect anything more from these guys, they're already doing a good job in my eyes.

  • @christopherriley3812

    @christopherriley3812

    10 жыл бұрын

    I do agree, but no matter how hard you try you can never draw a hyper-cube on paper. I don't think there are any images that would help. That's why generic terms like DE and DM, who's inadequacies are displayed above, exist at all.

  • @Rpahut1

    @Rpahut1

    10 жыл бұрын

    Michael Bay have trained you well.

  • @christopherriley3812

    @christopherriley3812

    10 жыл бұрын

    scuzzlebutt! he's real~महान माइकल बे के अनुसार, आप सभी चीजों की एक मास्टर हैं menurut michael bay besar, Anda adalah seorang master dari segala sesuatu

  • @MaDrung

    @MaDrung

    10 жыл бұрын

    makes it easier to understand what he's saying and to follow the speaker with his hand movements and so on. It would be harder to listen to without it. I wouldn't like this to become another discovery channel cheap show focusing on movie stunts. This has to be just that. Simple.

  • @RyuuteiSB
    @RyuuteiSB10 жыл бұрын

    Mr Haran & Professor Ed Copeland, thanks a lot. I really loved this video.

  • @SirJonathanTPunkbottom
    @SirJonathanTPunkbottom5 жыл бұрын

    Best 60 Symbols video ever. Thank you so much.