The Scale of the Universe

[15357]

Time for another Universe thread!

http://www.newgrounds.com/portal/view/525347


This is actually freaking awesome.

But I'd like someone to explain what "Physical Sense" means at the Planck Length with its 10^-35 meters. I mean, I know what Planck Length is basically, but what does it mean by "no physical sense" for it to be smaller?

Also, how is the observable universe smaller than the actual universe? Wouldn't that make the expansion of space faster than the speed of light? Or am I understanding it wrong?

My understanding:
Universe age: 14,000,000,000 years
Universe largeness: 10^26 * 9.3 meters
Observable Universe: 10^26 * 1.4 meters -> This is supposed to be 14,000,000,000 light-years.

So uh, anyone care to explain?

 

[Warped]

Cool presentation, I feel even smaller now

 

[15357]

I feel big as hell compared to quarks

 

[Novus]

The star VV Cephei B, even though is not as big as VY Canis Majoris has a tiny dot next to it saying that it could fit "Over one billion Earths in this tiny dot". Shows how insugnificant we are in the face of the Universe.

Also when I see the distance for our local cluster to be 1,500,000,000,000,000,000,000,000 meters my jaw just drops.

 

[63]

7m earthworm, ya ok.

 

[YROC]

That was posted in another universe thread a while back (that's how I saw it in the first place). Cool flash thing, regardless. Very informative.

 

[Nomad]

So an HIV virus is able to fit into the pit of a CD? Oh god.

 

[Mr. Djees]

Also, how is the observable universe smaller than the actual universe? Wouldn't that make the expansion of space faster than the speed of light? Or am I understanding it wrong?

My understanding:
Universe age: 14,000,000,000 years
Universe largeness: 10^26 * 9.3 meters
Observable Universe: 10^26 * 1.4 meters -> This is supposed to be 14,000,000,000 light-years.

So uh, anyone care to explain?

The universe expands exponentially, it passed the speed of light some time ago.

 

[Bad^Hat]

Sup.

http://www.halflife2.net/forums/showthread.php?t=165695

Still cool though. :3

 

[Raziaar]

The universe is exactly 1 universe in size based on my proprietary universe measurement formula.

Keep it simple!

 

[Bad^Hat]

So does everything else in existence change it's measurement when the universe contracts/expands to stay true to your formula?

 

[Raziaar]

So does everything else in existence change it's measurement when the universe contracts/expands to stay true to your formula?

Oh my measurement formula isn't well suited to measuring anything else.

 

[Mogi67]

my cock is bigger than that

 

[Lizardizzle]

my cock is bigger than that

alrighty then.

 

[15357]

The universe expands exponentially, it passed the speed of light some time ago.

It did?

But I thought things couldn't move faster than light?

Sup.

http://www.halflife2.net/forums/showthread.php?t=165695

Still cool though. :3

Damn it!

 

[Avoidist]

Yeah, that level of cosmology (receeding faster than the speed of light) is where even I start scratching my head. Blame Einstein, really. Ask me again in about 4 months time and I'll probably be able to give you a decent answer.

 

[15357]

Yeah, that level of cosmology (receeding faster than the speed of light) is where even I start scratching my head. Blame Einstein, really. Ask me again in about 4 months time and I'll probably be able to give you a decent answer.

What, are you going to work on my question for the next 4 months? :E


Or is your field of study related? Because that is goddamn awesome.

 

[Avoidist]

I know people who are doing things that are more closely related (epoch of reionisation, etc) but me personally? Not quite so much. More to do with cosmic rays. All that cosmological stuff will be covered in a course I am doing next semester (Advanced Astrophysics). There was a bit on it in Astrophys III but not enough for me to explain it properly.

 

[Robbo]

The universe is expanding into a space outside of the universe so it can move faster than light. Think of it as the fabric of the universe is being stretched faster than light but light can still only move at c through that fabric.

P.S. The universe may not be expanding into a space beyond the universe but it's easier to think of it like that

 

[JUL3]

Cool presentation, I feel even smaller now

Whenever life gets you down Mrs. Brown...

 

[Escaep]

I find everything space related fascinating but so damn confusing at the same time.

 

[JUL3]

I find everything space related fascinating but so damn confusing at the same time.

This.

Thus the reason why I posted a simple reference to Monty Python.

 

[Jintor]

You've just really got to wrap your head around the sense of scale. In both time and space, it's ridiculously, incredibly, mind-bogglingly big.