[QUOTE=Laserbeams;21423855]How so ?[/QUOTE]
Energy cannot be created or destroyed, and in a closed system the total amount of energy never changes.
OP implies that the current universe ends up with an even density of energy everywhere after the heat death, then there's another big bang out of nowhere that introduces more energy from nowhere into our universe.
Which means that you just broke thermodynamics by increasing the energy of a closed system.
I prefer the idea of a big crunch, the universe contracting.
[editline]09:56AM[/editline]
[QUOTE=CNiall;21422639]I'm just interested to know how people get from 'singularity' to 'lolwormhole' in the first place.[/QUOTE]
People probably think the massive gravity of the black hole causes warping of the other dimensions and ending up somewhere else, like a wormhole.
I for one do not believe this. All that is sucked into the black hole will only be a singularity, and will stay at the center.
Also I say we try to bring back the science section.
:siren:[url]http://www.facepunch.com/forumdisplay.php?f=318:siren:[/url]
SCIENCE!
[QUOTE=bravehat;21423907]Energy cannot be created or destroyed, and in a closed system the total amount of energy never changes.
OP implies that the current universe ends up with an even density of energy everywhere after the heat death, then there's another big bang out of nowhere that introduces more energy from nowhere into our universe.
Which means that you just broke thermodynamics by increasing the energy of a closed system.[/QUOTE]
By breaks the laws of thermodynamics I meant that the sudden creation of the big bang is reversing entropy, which isn't allowed.
There is more people than me who's talking about the cyclic model! :woop:
What's up with all this deep crap lately? We should have forum for it Deep Threads: Deeper than the kiddie pool.
[QUOTE=Agent766;21425450]What's up with all this deep crap lately? We should have forum for it Deep Threads: Deeper than the kiddie pool.[/QUOTE]
Deep Threads: For the smart people.
Yeah, I'd be a regular.
I have always thought that the universe is not new by any means. Every bit of matter attracts every other bit of matter to itself. No matter how much energy is put into hurling a piece of matter away from the universe, eventually the gravitational pull will bring it back. That is why I always thought that eventually our universe will clump back together can rebirth itself.
Im curious what you guys think about the String theory
String theory is a theory that complete our standard Model and also completes the TOE (Theory Of Everything)
Basicly it can answer all the questions on how the 4 fundamental forces works (Gravity,Electromagnetic Force,Weak and Strong Nuclear force)
It works by having 11 Dimensions
all curved up and intersecting each others
Let's say a certain 'String' Vibrate in a certain way,This string will make Matter Particules
Let's say another String Vibrate in another way,This gives another kind of particules
And this go on and on and on
The extra dimensions are used to simulate how Certain Particule get's it's mass.
Other Dimensions act as Nuclear force,Other as Gravitation force.
Id like to know what you guys think about this and if you think it is a possible and viable theory
Here some sources
(Huge Wall of wiki text,Good luck)
[url]http://en.wikipedia.org/wiki/String_theory[/url]
[editline]04:11PM[/editline]
[QUOTE=redonkulous;21426951]I have always thought that the universe is not new by any means. Every bit of matter attracts every other bit of matter to itself. No matter how much energy is put into hurling a piece of matter away from the universe, eventually the gravitational pull will bring it back. That is why I always thought that eventually our universe will clump back together can rebirth itself.[/QUOTE]
Then why are the galaxy getting away from each other ? Is that the big bang effect ? Like when you trow something in a puddle the water ripple effects ?
There is the Dark matter Theory,Basicly it says that 3/4 of our universe is Dark matter and this dark matter have a Similar effect of Gravitational pull on Real matter,Which it would explain why the Galaxy are getting away from each other at a speed dertemined by their distances
The problem I have with string theory is that it is far too complicated. If you look at many of the relationships found in nature, they may seem complex, but they interact in very simple methods, for example E=mc^2 is a relatively simple equation explaining a very complex issue. I know that this in no way really stands as any concrete evidence for or against string theory. It just doesn't seem like after all the relative simplicity, things would become really complicated.
[editline]12:29PM[/editline]
[QUOTE=genyus;21426953]
Then why are the galaxy getting away from each other ? Is that the big bang effect ? Like when you trow something in a puddle the water ripple effects ?[/quote]
Well they were hurled apart with an insane amount of force, but gravity still has an effect over distance. I think that over time the gravitational pull of the universe will overcome the outward force and bring everything back together. Just something I always thought about since I learned about gravity, what is there to stop everything from blobbing together again after trillions of years of undergoing minuscule amounts of gravitational pull from a gigantic amount of matter?
As for dark matter, I have not researched it much at all, so forgive me is I say something retarded, but it seems pretty hokey. This astrophysicist developed a theory of gravity a few years ago that says that after x amount of distance, gravitational force stops decreasing and remains at y really small amount. I wish I remembered more about it, but it completely explained the weird patterns that dark matter was meant to explain, and seemed to make a lot more sense than "there is a whole bunch of crap we can't see or have any way of measuring, but it explains why this crap is happening so it must be true". I'll get on the Google and see if I can find it.
You do know scientists proved the all the galaxies are moving away from each other, and getting faster right?
That's why they coined the idea of dark energy and matter, to try and explain this.
there is the Big Crunch Theory
it basicly says that the end of the Universe will end up in a small Point in time like the bigbang but Reverse
Everything will 'rewind' into a singularity and maybe Pop again to make another universe and thus a cycle is created.
But I believe more the Big freeze theory where everything will lose its heat,energy and becoming so stable that Everything will be at 0 Kelvin and thus The death of the universe
[editline]05:17PM[/editline]
[QUOTE=bravehat;21427601]You do know scientists proved the all the galaxies are moving away from each other, and getting faster right?
That's why they coined the idea of dark energy and matter, to try and explain this.[/QUOTE]
Hedwin Hubble discovered that with a redshift calculation (the same thing as when a police car coming in your way you hear a faint sound and it becomes stronger as they get nearer and fainting again when the car is moving away from you)
Did you know that the farther a galaxy is from us, the faster it is moving
the greater the redshift, the faster the galaxy is moving and the farther it is from us
Yeah I know, it's called the Doppler effect.
Universe's awesome
[QUOTE=genyus;21428317]Hedwin Hubble discovered that with a redshift calculation (the same thing as when a police car coming in your way you hear a faint sound and it becomes stronger as they get nearer and fainting again when the car is moving away from you)[/QUOTE]
Redshift has nothing at all to do with the intensity of sound decreasing as the distance from its source increases.
Could this explain Deja vu?
[QUOTE=ThePuska;21429069]Redshift has nothing at all to do with the intensity of sound decreasing as the distance from its source increases.[/QUOTE]
That's the Doppler Effect right?
[QUOTE=winsanity]Could this explain Deja vu?[/QUOTE]
No. The brain uses its own compression system, much like winzip or winrar. Basically, when you imagine, say, the Empire State building, you just see the general shape, and not every individual window. You see the windows [I]as a whole[/I]. Because of that, when two events are similar to each other, the brain simplifies them for easier storage. So when two events have been simplified to almost the same thing, the brain superimposes them.
[QUOTE=redonkulous;21426951]I have always thought that the universe is not new by any means. Every bit of matter attracts every other bit of matter to itself. No matter how much energy is put into hurling a piece of matter away from the universe, eventually the gravitational pull will bring it back. That is why I always thought that eventually our universe will clump back together can rebirth itself.[/QUOTE]
AHAHAHAAH no.
[url]http://en.wikipedia.org/wiki/Escape_velocity[/url]
[editline]07:06PM[/editline]
[QUOTE=winsanity;21429153]Could this explain Deja vu?[/QUOTE]
Cannot be tested, Occam's Razor etc.
I feel very strange now all of a sudden.
[QUOTE=Yahnich;21429091]He probably means how the frequency of the siren increases is it comes towards you and it becomes lower as it moves away from you.[/QUOTE]
Frequency of the source doesn't change, it's the wavelength that does, same with white light.
I meant by the redshift and the cars and stuff so the people that are not used to these principle could understand
[QUOTE=bravehat;21429467]Frequency doesn't change, it's the wavelength that does, same with white light.[/QUOTE]
f = v/λ
Please explain how λ can change without f changing while v remains constant.
[QUOTE=ThePuska;21429534]f = v/λ
Please explain how λ can change without f changing while v remains constant.[/QUOTE]
Because the source is moving towards you at first, the waves are squashed, and as the siren passes you the source is moving away, and the waves stretch.
Higher wavelength = Higher pitch of sound
Lower wavelength = Lower pitch of sound
Done.
[QUOTE=bravehat;21429613]Because the source is moving towards you at first, the waves are squashed, and as the siren passes you the source is moving away, and the waves stretch.
Higher wavelength = Higher pitch of sound
Lower wavelength = Lower pitch of sound
Done.[/QUOTE]
Frequency is inversely proportional to wavelength. One cannot change without the other changing. Higher pitch means higher frequency and shorter wavelength. Lower pitch means lower frequency and longer wavelength.
I said the frequency of the [b]source[/b] doesn't change
Not frequency.
[QUOTE=bravehat;21429688]I said the frequency of the [b]source[/b] doesn't change
Not frequency.[/QUOTE]
No you did not. You edited that in after my quote.
:smug:
Okay you got me, I'l give you that, I forgot a bit of my physics.
Sorry, you need to Log In to post a reply to this thread.