• Scientists glimpse universe before the Big Bang
    47 replies, posted
[quote] [img]http://cdn.physorg.com/newman/gfx/news/hires/prebigbangci.jpg[/img] Black hole encounters would have repeated themselves several times, with the center of each event remaining at almost exactly the same point in the CMB sky, even when occurring in different aeons. The huge amounts of energy released would appear as spherical, low-variance radiation bursts in the CMB. Image credit: Gurzadyan and Penrose. [/quote] [b] (PhysOrg.com) -- In general, asking what happened before the Big Bang is not really considered a science question. According to Big Bang theory, time did not even exist before this point roughly 13.7 billion years ago. But now, Oxford University physicist Roger Penrose and Vahe Gurzadyan from the Yerevan Physics Institute in Armenia have found an effect in the cosmic microwave background (CMB) that allows them to "see through" the Big Bang into what came before. [/b] The CMB is the radiation that exists everywhere in the universe, thought to be left over from when the universe was only 300,000 years old. In the early 1990s, scientists discovered that the CMB temperature has anisotropies, meaning that the temperature fluctuates at the level of about 1 part in 100,000. These fluctuations provide one of the strongest pieces of observational evidence for the Big Bang theory, since the tiny fluctuations are thought to have grown into the large-scale structures we see today. Importantly, these fluctuations are considered to be random due to the period of inflation that is thought to have occurred in the fraction of a second after the Big Bang, which made the radiation nearly uniform. However, Penrose and Gurzadyan have now discovered concentric circles within the CMB in which the temperature variation is much lower than expected, implying that CMB anisotropies are not completely random. The scientists think that these circles stem from the results of collisions between supermassive black holes that released huge, mostly isotropic bursts of energy. The bursts have much more energy than the normal local variations in temperature. The strange part is that the scientists calculated that some of the larger of these nearly isotropic circles must have occurred before the time of the Big Bang. The discovery doesn't suggest that there wasn't a Big Bang - rather, it supports the idea that there could have been many of them. The scientists explain that the CMB circles support the possibility that we live in a cyclic universe, in which the end of one “aeon” or universe triggers another Big Bang that starts another aeon, and the process repeats indefinitely. The black hole encounters that caused the circles likely occurred within the later stages of the aeon right before ours, according to the scientists. In the past, Penrose has investigated cyclic cosmology models because he has noticed another shortcoming of the much more widely accepted inflationary theory: it cannot explain why there was such low entropy at the beginning of the universe. The low entropy state (or high degree of order) was essential for making complex matter possible. The cyclic cosmology idea is that, when a universe expands to its full extent, black holes will evaporate and all the information they contain will somehow vanish, removing entropy from the universe. At this point, a new aeon with a low entropy state will begin. Because of the great significance of these little circles, the scientists will do further work to confirm their existence and see which models can best explain them. Already, Penrose and Gurzadyan used data from two experiments - WMAP and BOOMERanG98 - to detect the circles and eliminate the possibility of an instrumental cause for the effects. But even if the circles really do stem from sources in a pre-Big Bang era, cyclic cosmology may not offer the best explanation for them. Among its challenges, cyclic cosmology still needs to explain the vast shift of scale between aeons, as well as why it requires all particles to lose their mass at some point in the future. [url=http://www.physorg.com/news/2010-11-scientists-glimpse-universe-big.html]Source[/url]
late [highlight](User was banned for this post ("Rate, don't post" - Terrenteller))[/highlight]
:psyduck:
[QUOTE=wheresmyfish;26490793]:psyduck:[/QUOTE] ^
Infinity makes my head hurt :saddowns:
I'm getting some huge "[B]The Last Question[/B]" vibes here.
infinite big bangs :pcgaming:
i dont understand any of this but it sounds cool.
[QUOTE=wheresmyfish;26490793]:psyduck:[/QUOTE] [QUOTE=Roof;26490790]late[/QUOTE] [QUOTE=soapyy;26490821]^[/QUOTE] [QUOTE=Jcorp;26490859]Infinity makes my head hurt :saddowns:[/QUOTE] [QUOTE=Archy;26492134]infinite big bangs :pcgaming:[/QUOTE] [QUOTE=Rediscover;26492271]i dont understand any of this but it sounds cool.[/QUOTE] Ladies and gentlemen, can you spot the people who couldn't be bothered reading the article?
[QUOTE=CheeseMan;26494167]Ladies and gentlemen, can you spot the people who couldn't be bothered reading the article?[/QUOTE] no but i can spot an article which is very difficult to read
[QUOTE=CheeseMan;26494167]Ladies and gentlemen, can you spot the people who couldn't be bothered reading the article?[/QUOTE] Second and third I'd say. [editline]5th December 2010[/editline] [QUOTE=Mr.Dounut;26494210]no but i can spot an article which is very difficult to read[/QUOTE] There isn't that much scientific stuff in there actually.
I'm calling preemptive bullshit since this is Roger Penrose. Other than that, it does seem to kinda fit the current model for a flat universe. One thing I never knew was, if quantum vacuum fluctuations created a separate univerese or just tossed the mass-energy into an already-existing space-time, an dif it's the latter, then this seems plausible. The Last Question, et cetera, you know the drill.
Oh hey I remember this. [img]http://images3.wikia.nocookie.net/__cb20101020084256/stargate/images/thumb/3/31/Rush111.jpg/359px-Rush111.jpg[/img] Wasn't it on SyFy the week before?
Did they see god?
[QUOTE=imasillypiggy;26495997]Did they see god?[/QUOTE] Cannot see what does not exist.
[QUOTE=superdinoman;26496055]Cannot see what does not exist.[/QUOTE] what are you talking about? he walks among us [img_thumb]http://dummidumbwit.files.wordpress.com/2019/04/kim-jong-il.jpg[/img_thumb]
I always kind of thought the Big Bang would just be part of a cycle our universe goes through. After a certain amount of time it comes back together (Big Crunch?) or some other means that leads to another Big Bang signifying the end of that universe and the start of another. Our universe could be 13.7byo but it could just be part of a cycle that has been going on for much , much longer. Just random thoughts
Man that's confusing. How does something happen if time is not there.
[QUOTE=imadaman;26494876]Oh hey I remember this. [img_thumb]http://images3.wikia.nocookie.net/__cb20101020084256/stargate/images/thumb/3/31/Rush111.jpg/359px-Rush111.jpg[/img_thumb] Wasn't it on SyFy the week before?[/QUOTE] I was just thinking this...
I love how science plays with my mind.
we cant understand infinity because our mind limits, right?
[QUOTE=wheresmyfish;26490793]:psyduck:[/QUOTE]
So let me process this.. things explode, scattering atoms/molecyles around the space, then new galaxies/planets/life develop from these scattered atoms/molecyles, which then eventually dies and explode, scattering all the atoms/molecyles around all over again. Now, it seems to me that, on a long enough timeline, the space will be full of galaxies, impacts between on-going galaxies and dying galaxies and what the fucking not. So, we are all going to die. Except we won't! We'll be hopping from planet to planet, living the cycle without actually "resetting" the human kind's accomplishments. Now this is some fascinating shit!
[QUOTE=Bat-shit;26512000]So let me process this.. things explode, scattering atoms/molecyles around the space, then new galaxies/planets/life develop from these scattered atoms/molecyles, which then eventually dies and explode, scattering all the atoms/molecyles around all over again. Now, it seems to me that, on a long enough timeline, the space will be full of galaxies, impacts between on-going galaxies and dying galaxies and what the fucking not. So, we are all going to die. Except we won't! We'll be hopping from planet to planet, living the cycle without actually "resetting" the human kind's accomplishments. Now this is some fascinating shit![/QUOTE] Whatever drugs you are on that made you read the article in this way, I want the name of your dealer.
[QUOTE=superdinoman;26512048]Whatever drugs you are on that made you read the article in this way, I want the name of your dealer.[/QUOTE] I didn't read it thoroughly, just eyeballed it. Am I completely mistaken? Or am I actually the new-Einstein or what? :v:
[QUOTE=Bat-shit;26512222]Or am I actually the new-Einstein or what? :v:[/QUOTE] You aren't.
dS = (dH-dG)/T All it means is there was really low temperatures. As in, 0K
[QUOTE=Bat-shit;26512222]I didn't read it thoroughly, just eyeballed it. Am I completely mistaken? Or am I actually the new-Einstein or what? :v:[/QUOTE] You must have been up to your eyeballs on fucking mescaline then.
[QUOTE=Kontradaz;26512476]You aren't.[/QUOTE] It was a rhetorical question you frickin' einstein.
[QUOTE=bravehat;26512652]You must have been up to your eyeballs on fucking mescaline then.[/QUOTE] I'm not into that stuff. Anyway I was just speculating on the interwebs, and not in a too idiotic manner?
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