Cosmos Episode 10: The Edge of Forever Part 4 of 7

[keaneing]

04:52 Best moment in the entire series.

[Baltahfeek]

If you look into wikipedia by going to the shape of the universe, it basically says that with the WMAP (the Wilkinson Microwave Anisotropy Probe) has confirmed that the universe is flat with 0.5% margin of error... So its safe to say now that the universe is flat. Observations have added so much to our knowledge of the universe since this series was made. RIP Carl Sagan, we all love you...

[Setzer]

Apparently the universe is flat.

[bess5ph]

watching these videos give me goosebumps.. lol i think i'll give his books a try sometime.. what's his best book btw? where should i start?

[yxrcbszg]

Dr. Seuss of Science =)

[TheOberon8]

What tree is that??Behind Carl starting at 5.15???

[Ishkur23]

This is dated info. Cosmologists have since been able to measure the "shape" of the Universe, and they have found that it is flat, not curved. An ever-expanding flat expanse, with the sum total of everything in it (including dark matter/energy) equaling exactly zero. The Universe is nothing, we are nothing, and in the beginning, this nothing came from nothing. So make sure to correct the next Creationist who argues that "how can something come from nothing?" It didn't. It was always nothing.

[hoosieryank1967]

Too mnay people trying to save a step...thank you, Carl Sagan!

[123456vwxyz]

Incredible India.

[SatishSoeraj]

Perhaps if we ''jump'' into a blackhole we might end up in a higher dimension but we may not survive xD

[Techlur]

@SatishSoeraj

Jumping into a black hole would cause you to become part of it. The black holes mass would simply become larger, its entropy greater, and its event horizon bigger.

Your talking about a worm hole, which is a "cross" or "fold" in two or more dimensions.

[SatishSoeraj]

@Techlur Thanks,

 I understand now

[PrincessUnicorn69]

seriously im so fucking high and this i samaaazing

[TheJimzhe842]

i really wonder how that one person hated this video



[TheJimzhe842]

i am really inspired by this :)

[TUMFACHIER]

What the musics starting at 0:40 and at 2:55 are? Thanks!

[septic55]

Intergalactic social blunder

[FFFurken]

@septic55 Yeah, that was good ;)

[OzzInter]

I missed this series when it was on TV.

Thanks to YouTube I can now see it!

This series is excellent because it discusses the universe from a modern scientific viewpoint yet acknowledges abstract philosophical and religious concepts about creation.

[Orenotter]

It's unfortunate that this whatever-it-is we're sitting on the surface of has come to be called "space". It really isn't the same thing as space. Space is the absolute standard which allows us to say that this N-brane which holds our universe may be curved, bent or even crumpled.

[fireboltttt]

if the universe is curved then whats beyond the curved part?

[starstarstar42]

You are thinking 3-dimensionally. Just like the 2-dimensional beings he talks about can never perceive a 3rd dimension (their universe just appears infinite to them), we can never perceive a 4th, which is what is beyond the curve you think he's talking about. Since we can never perceive it, it doesn't "exist" to us, but it is there.

[Orenotter]

@fireboltttt The inside would be subspace, the outside hyperspace. That's really all we know.

[Scurmicurv]

Someone asked about the possibility of locating the point of the big bang. Thing is, it's right here! Follow his analogy with the ballon, which is by and large a very good likening. The ballon we're all riding is space-time itself expanding, that's why everyone thinks everything is running away from him/her. But if you shrink the ballon (reverse the space-time expansion) you'll experience everything rushing in on you. The big bang isn't a single occurrence in space, we're riding it right now.

[tpinksen]

5:50 - 7:00 is one of the most brilliant, yet simple statements I've ever heard.

[OzzInter]

@tpinksen

Totally agree!

We must have a totally open view on cosmic creation.

We must avoided closed thinking by either the "scientific" or religious fundamentalists.

[anonimoculto]

@tpinksen And, after that, he will yet be remembered, by the religious writes with their inquestionable knowledge of things, in their "articles" and in sites like wikipedia, as a "theist", like they did with Einstein. Believers...

[Benaker]

@tpinksen Agreed. He phrases the statement in a way that (almost completely) disarms it's potential to infuriate religious minded people.

[Tulkastaldo]

When he is showing the model of the tesseract he reminds me of Mr. Rogers

[xthantos]

That was so enlightening. And makes so much sense. So we travel in a striagt line like columbus only to land back where we started. (I know he didnt realy) ..But when you think about it, everything is round, little molicules, bits of atoms, planets, stars..So It would seems to conform to the rest of nature..

[PrinceCharmlesssss]

one thing this doc. brought to mind. If all the galaxies are moving away from each other I wonder if we will ever be able to track down the 'starting point' in the universe of where all the galaxies starting shifting....or even where the big bang actually occurred.....

[Quanglewanglewiki]

Maybe my understanding of the theory is imperfect (and by that I mean it is) but I would expect the "starting point" or "origin" of everything to be, well, all matter and energy everywhere. The subatomic particles in your skin, clothes, chair, computer, and the Andromeda Galaxy were once all together at the moment the Big Bang occurred.

My $0.02

[starstarstar42]

@PrinceCharmlesssss There is no "starting point" per say. You imagine that there is a "place" with a certain "time". When the big bang happened, there was nothing that could be called a "place" or even a "time". Everything was a ball so small and so dense that gravity, time & space did not even exist yet. In short, the big bang happened everywhere in our universe at exactly the same time.

[t5239857289578947594]

That's awesome!!!Thanks

[bonerbonanza3d]

Man, this series ruled,..

[elemilex]

OK call me an idiot, but now I've just FINALLY understood (obviously just conceptually) the expantion of the universe (space included) desattached from the wrong concept of a "center" of our universe, from wich we started to expand when the big bang happened...

[elemilex]

..and the most amazing thing of all: I'm a mathematics college student; constructions of n-dimensions are pretty familiar to me; so I should have get it from the very beggining... but just no one EVER explained it to me, with the mathematical clarity that Sagan's just shown (none of my friends on physics).

Sagan was the greatest teacher.

[darkedge21]

im not too smart but i have a general understanding and i was amazed when i wasn't baffled by what he said.

[stryder127]

agreed. Dr. Sagan does a great job of making a complex idea accessible and understandable.

[trekepisodes]

Indeed. Almost anyone can understand many of the concepts he's discussing, despite their complexity. A truly fascinating video series.

[lankhazard]

so good