What is space expanding into? 90 second lecture (9/11)

[mangoismycat]

@tonyfalca The Doppler Effect; we perceive most astronomical objects as moving away from us, because their light is shifted a bit. The same phenomenon can explain why you hear a police car increasing in pitch as it approaches you.

[whydreamwhite]

don't expect another human being to answer that question. what you should do is read the lyrics for the band "Born of Osiris" of the album called "The Discovery".

[1800levso]

bigbang teory is time to wake up.. our universe was created from another universe, how, you see black holes in the space?? that's what we are, we live inside of a ancient black hole, and time and space are infinite inside those black holes, they don't take you to new dimensions but to brand new infinite universe same as ours, another thing time is going way faster inside those black holes. 1 second in this universe could be thousands of years inside those black holes. that's my theory.. lol.

[paradox3578]

my question to all you tubers what would happen if space at some point expanded faster than light would it fall in on itself or rip space and time and cause a type of worm hole ????? im not sure what to believe

[1800levso]

@paradox3578 the reason why light can't scape black holes is because it enters into a new time space dimension, one secon here is thousands or even million of years, same for space,

[GuppyMister]

I got nothing from this

[fudgedogbannana]

what was space before the big bang?

[TableWolfMusic]

Maybe everything in space (galaxies and hydrogen clouds/dust) are just getting smaller. Maybe we are all just disappearing up our own arses?

[erdemoz1]

Space is space, what can be more obvious than that?

[Etimespace]

1. Scientific experiments

The argument about the expanding space is an empty argument! There is no way

to make scientific experiments with a space. The argument about expanding

space is not science. It is a religion!

The thing that particules radiate their energy is not an empty claim.

Particules can be examined and make scientifical experiment with them and

this way proof this claim to be true.

[Buuub08]

And how did you got to that?

In fact all the science of space and everything humans know about space are nothing but assumptions. science cant explain anything, it just guesses. Sadly a hypothesis is taken for fact until proven wrong, while it should be taken as a guess until proven right. Much of the things we get taught at school are just theories, on which more theories are based and so on. At the end we have theories based on theories of theories.

[Buuub08]

If a fundamental theory gets proven wrong, that will basically mean that the entire scientific structure will have to start over from the very beginning.

Some might say that we got so far just because of those theories, maybe, but maybe we would have gotten much further if we didnt take those theories for fact and leave them be but try to find actual proof.

Scientists try to explain things mankind is 1000s of years too early to understand, thus leading to false beliefs on which others base on.

[zombiehelp]

this sounds like a conversation back in the day when we were all too high.

[Jasonatron]

He never answered the question. He didn't even try.

Q. What is space expanding into?

A? Here's why I think it's expanding! Into either something or nothing! There are theories! But we don't need them, because we're expanding!

[1noen1]

Wrong, he did answer the question. He said there is no need to hypothesize higher dimensions because we can completely account for the expansion without them. BUT if you do want to imagine other higher dimensions than ours you can, but it's pure speculation.

[Jasonatron]

I get that, but question is "What is space expanding into?"

That we can account for the expansion from an inside perspective without knowledge of what is on the outside is great, but it doesn't moot the question. Rather, the question sits unaddressed.

Maybe the question could be asked in a different way. I'm just nitpicking.

[1noen1]

There is no "inside perspective" and there is no "outside" into which the universe can expand. Everything we know can be explained today without any appeal to higher dimensions.

[planetdarwin]

Physics, ftw!

[matthias2986]

time is not linear, it is relative to prespective of the veiwer.... check it out for yourself.

[matthias2986]

i dont beleive in time as most. time does not go forward, we just happen to see it as such, time like most things are ALL at once, and so the universe is not expanding, it just IS it is at all possible forms at once, we just happen to look at time the wrong way. i mean, thats just what i think.

[imover18gotityube]

There is no real evidence to support that everything happens at once and its just us stupid humans that can't perceive that.

[matthias2986]

ok if time has a begining and everything moved forward from the begining of time then were did the energy needed for mass to exist come from??? you can NOT creat energy or matter, only change the form of the pre-existing. i am asking you sir then where did the energy needed for the "big bang" come from? and when sir when did it start??? it didnt start is the only logical answer, it has been always and time is infinite with no beginning humans see time as linear. but i believe it is not.

[matthias2986]

"I still believe the universe has a beginning in real time, at a big bang. But there's another kind of time, imaginary time, at right angles to real time, in which the universe has no beginning or end. "

Stephen Hawking,

[RavenakaSkittlz]

well, i think that there are many possibilities in which things happen all at once... or an ex. Schrödinger's Cat: maybe you should look it up and READ it. maybe everyones theory is true, there is nothing telling nor showing us all that we are wrong, am i right? maybe you should do more reading up. *dont take it too much of an effence* that is what i think...

[imover18gotityube]

Please don't patronize me and tell me to do more reading up. I don't make frivolous statements.

[bunyanjo]

Some people are simply too stupid to get their heads around some questions and some questions are simply too dificult to formalise verbally. Think of it like this : the universe is an expanding balloon, space is the expanding surface of the balloon. We'r inside the balloon. If we travel through space, we are running along the INSIDE of the balloon. We arrive back ( eventually) where we started, never reaching an end, a wall, a new universe etc.

[MyMemories19]

Your comment is by far the most sound, but I have to say that this guy (the one in the video) provides a stupid explanation. This is my opinion.

[aphanez]

Just because there's nothing there doesn't mean it doesn't exist.

[0121ryanh117]

An better way to think about it is that outside of this universe doesnt exist untill the universe expands. Simple as that, there is no space, nothing outside of this universe.

[cogentfellow]

DiD ANYONE notice the capitalisation of the background sign... hence what he's really talking about...

[darko210]

he's hot

[stylemasterrr]

if you can't come up with an answer then just disregard it.

i thought science was the pursuit of truth?

HAck./

[stanleyrumm]

If you came to the end of the universe and went beyond that, you (as part of this universe) would be expanding this universe into wherever it is you are.

The universe is made up of its elements, so it cannot expand beyond its elements, but if any of its elements (including you) went beyond that, the universe would be there too.

[nambinhvu]

lol we need to think about everything this way. We don't need to hypothesis whether it is, it just is lol. Does space need to have an end? If it had an end, people would only ask themselves, "what is beyond the end of space?" There would be no end to it lol. You can do the same thing with religion and ask what created the creator. It'll never end.

[cooledskin]

So what happens when you get to the edge of that expanding space? If there's nothing on the other side (or if we don't need there to be something on the other side) how would you know that space had ended? Physically, I mean.

[BCDPRODUCTIONS1234]

I think Chuck Norris is at the end of the universe...

[gameboyjk]

i have two ideas, u might just stop, not going any farther, like a wall. or we might end up at the exact oposite side of the univers, for example if the universe where squere, we might reach the left side, then apear on the right... or everything might turn into nothing and the exact point where u touched the end there is another big bang lol

[blobrana]

cool