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 Post subject: Re: Our universe is so rad!
PostPosted: Wed November 06, 2013 5:04 am 
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The Master
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I live right on the water. I should have set my fucking alarm for this.


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 Post subject: Re: Our universe is so rad!
PostPosted: Wed November 06, 2013 5:04 am 
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 Post subject: Re: Our universe is so rad!
PostPosted: Wed November 06, 2013 9:57 pm 
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malice wrote:
stip wrote:
don't be embarrassed. I wasn't being obvious about it. I'm just saying I agree :)

i thought that said ' i was just being obnoxious about it'


I read it that way too :oops:


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 Post subject: Re: Our universe is so rad!
PostPosted: Thu November 07, 2013 1:55 pm 
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cutuphalfdead wrote:
I live right on the water. I should have set my fucking alarm for this.


the only reason i was able to do it was because of the time change, i did set my alarm, but if i wasnt gaining the hour of sleep then i dont think i could have gotten up

and that picture you posted was amazing :thumbsup:


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 Post subject: Re: Our universe is so rad!
PostPosted: Sun November 17, 2013 5:25 pm 
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Comet ISON Is (So Far) Living up to the Hype

http://www.slate.com/blogs/bad_astronom ... comet.html

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 Post subject: Re: Our universe is so rad!
PostPosted: Mon December 09, 2013 1:31 am 
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http://apod.nasa.gov/apod/ap131208.html

Explanation: If you could stand on Mars -- what might you see? Scroll right to find out. The robotic Spirit rover that rolled around Mars from 2004 to 2009 Mars climbed to the top of a hill in 2005 and took a series of images over three days that were then digitally combined into a 360 degree panorama. Spirit was instructed to take images having the same resolution as a human with 20-20 eyesight. The full panoramic result can be found by clicking on the above image and has a level of detail unparalleled in the history of Martian surface photography. The panorama was taken from the pinnacle of Husband Hill and has been dubbed the Everest panorama, in honor of the view from the tallest mountain on Earth. Visible in Gusev Crater are rocks, rusting sand, a Martian sundial, vast plains, nearby peaks, faraway peaks, and sand drifts. In the distance, fast moving dust devils can be seen as slight apparitions of red, green, or blue, the colors of filters used to build up this natural color vista.


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 Post subject: Re: Our universe is so rad!
PostPosted: Thu December 12, 2013 6:49 pm 
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That is pretty cool. I want to go.

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 Post subject: Re: Our universe is so rad!
PostPosted: Thu December 12, 2013 9:55 pm 
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Still space calls my name, friend.


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 Post subject: Re: Our universe is so rad!
PostPosted: Thu December 12, 2013 9:57 pm 
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cutuphalfdead wrote:
Still space calls my name, friend.

kindred souls...

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 Post subject: Re: Our universe is so rad!
PostPosted: Sun December 15, 2013 7:54 am 
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Simulations back up theory that Universe is a hologram

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A team of physicists has provided some of the clearest evidence yet that our Universe could be just one big projection.

In 1997, theoretical physicist Juan Maldacena proposed that an audacious model of the Universe in which gravity arises from infinitesimally thin, vibrating strings could be reinterpreted in terms of well-established physics. The mathematically intricate world of strings, which exist in nine dimensions of space plus one of time, would be merely a hologram: the real action would play out in a simpler, flatter cosmos where there is no gravity.

Maldacena's idea thrilled physicists because it offered a way to put the popular but still unproven theory of strings on solid footing — and because it solved apparent inconsistencies between quantum physics and Einstein's theory of gravity. It provided physicists with a mathematical Rosetta stone, a 'duality', that allowed them to translate back and forth between the two languages, and solve problems in one model that seemed intractable in the other and vice versa. But although the validity of Maldacena's ideas has pretty much been taken for granted ever since, a rigorous proof has been elusive.

In one paper, Hyakutake computes the internal energy of a black hole, the position of its event horizon (the boundary between the black hole and the rest of the Universe), its entropy and other properties based on the predictions of string theory as well as the effects of so-called virtual particles that continuously pop into and out of existence. In the other, he and his collaborators calculate the internal energy of the corresponding lower-dimensional cosmos with no gravity. The two computer calculations match.

“It seems to be a correct computation,” says Maldacena, who is now at the Institute for Advanced Study in Princeton, New Jersey and who did not contribute to the team's work.

Regime change
The findings “are an interesting way to test many ideas in quantum gravity and string theory”, Maldacena adds. The two papers, he notes, are the culmination of a series of articles contributed by the Japanese team over the past few years. “The whole sequence of papers is very nice because it tests the dual [nature of the universes] in regimes where there are no analytic tests.”

“They have numerically confirmed, perhaps for the first time, something we were fairly sure had to be true, but was still a conjecture — namely that the thermodynamics of certain black holes can be reproduced from a lower-dimensional universe,” says Leonard Susskind, a theoretical physicist at Stanford University in California who was among the first theoreticians to explore the idea of holographic universes.

Neither of the model universes explored by the Japanese team resembles our own, Maldacena notes. The cosmos with a black hole has ten dimensions, with eight of them forming an eight-dimensional sphere. The lower-dimensional, gravity-free one has but a single dimension, and its menagerie of quantum particles resembles a group of idealized springs, or harmonic oscillators, attached to one another.

Nevertheless, says Maldacena, the numerical proof that these two seemingly disparate worlds are actually identical gives hope that the gravitational properties of our Universe can one day be explained by a simpler cosmos purely in terms of quantum theory.

http://www.nature.com/news/simulations- ... am-1.14328


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 Post subject: Re: Our universe is so rad!
PostPosted: Mon December 16, 2013 2:20 pm 
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Oh. After reading that headline I was hoping they found evidence that some giant alien being was projecting our universe on to his giant alien wall.

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 Post subject: Re: Our universe is so rad!
PostPosted: Mon December 16, 2013 2:44 pm 
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justice for trayvon


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 Post subject: Re: Our universe is so rad!
PostPosted: Mon January 13, 2014 8:53 pm 
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New pics of the Tarantula Nebula.

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http://www.space.com/24222-amazing-tara ... radus.html


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 Post subject: Re: Our universe is so rad!
PostPosted: Mon January 13, 2014 11:05 pm 
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turned2black wrote:

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So skating back to the train station after work today things went wrong.....now my skateboard is at the bottom of the harbour :(


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 Post subject: Re: Our universe is so rad!
PostPosted: Mon January 13, 2014 11:06 pm 
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E.H. Ruddock wrote:
Oh. After reading that headline I was hoping they found evidence that some giant alien being was projecting our universe on to his giant alien wall.

He's whacking off, and we're the porno.

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Rangi Guy wrote:
So skating back to the train station after work today things went wrong.....now my skateboard is at the bottom of the harbour :(


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 Post subject: Re: Our universe is so rad!
PostPosted: Wed January 15, 2014 4:36 pm 
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Sgt. Crackpot wrote:
E.H. Ruddock wrote:
Oh. After reading that headline I was hoping they found evidence that some giant alien being was projecting our universe on to his giant alien wall.

He's whacking off, and we're the porno.

Image


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 Post subject: Re: Our universe is so rad!
PostPosted: Mon January 20, 2014 7:28 pm 
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All sorts of fucking awesome.

Cosmic 'web' seen for first time

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By Simon Redfern
Reporter, BBC News

The hidden tendrils of dark matter that underlie the visible Universe may have been traced out for the first time.
Cosmology theory predicts that galaxies are embedded in a cosmic web of "stuff", most of which is dark matter.
Astronomers obtained the first direct images of a part of this network, by exploiting the fact that a luminous object called a quasar can act as a natural "cosmic flashlight".
Details of the work appear in the journal Nature.
The quasar illuminates a nearby gas cloud measuring two million light-years across.
And the glowing gas appears to trace out filaments of underlying dark matter.
The quasar, which lies 10 billion light-years away, shines light in just the right direction to reveal the cold gas cloud.
For some years, cosmologists have been running computer simulations of the structure of the universe to build the "standard model of cosmology".
They use the cosmic microwave background, corresponding to observations of the very earliest Universe that can be seen, and recorded by instruments such as the Planck space observatory, as a starting point.
Their calculations suggest that as the Universe grows and forms, matter becomes clustered in filaments and nodes under the force of gravity, like a giant cosmic web.
The new results from the 10-metre Keck telescope in Hawaii, are reported by scientists from the University of California, Santa Cruz and the Max Planck Institute for Astronomy in Heidelberg.
They are the first direct observations of cold gas decorating such cosmic web filaments.
The cosmic web suggested by the standard model is mainly made up of mysterious "dark matter". Invisible in itself, dark matter still exerts gravitational forces on visible light and ordinary matter nearby.
Massive clumps of dark matter bend light that passes close by through a process called gravitational lensing, and this had allowed previous measurements of its distribution.
But it is difficult to use this method to see very distant dark matter, and cold ordinary matter remains tricky to detect as well.
The glowing hydrogen illuminated by the distant quasar in these new observations traces out an underlying filament of dark matter that it is attracted to it by gravity, according to the researchers' analysis.
"This is a new way to detect filaments. It seems that they have a very bright quasar in a rare geometry," Prof Alexandre Refregier of the ETH Zurich, who was not involved in the work, told BBC News.
"If indeed gravity is doing the work in an expanding Universe, we expect to see a cosmic web and it is important to detect this cosmic web structure."
In the dark
He added: "What is expected is that the dark matter dominates the mass and forms these structures, and then the ordinary matter, the gas, the stars and everything else trace the filaments and structures that are defined by the dynamics of the dark matter."
"Filaments have been detected indirectly before using gravitational lensing, which allows us to see the distribution of the dark matter.
"Part of the ordinary matter has formed stars, which we can see, but another component is the gas. If the gas is very hot it emits X-rays and can be seen using X-ray telescopes. Other techniques to detect cooler gas now include the method described here."
Sebastiano Cantalupo, lead author of the article, and others have used the same method previously to look for glowing gas around quasars, and had seen dark galaxies.
"The dark galaxies are much denser and smaller parts of the cosmic web. In this new image, we also see dark galaxies, in addition to the much more diffuse and extended nebula," Dr Cantalupo, from UCSC, explained.
"Some of this gas will fall into galaxies, but most of it will remain diffuse and never form stars.
"The light from the quasar is like a flashlight beam, and in this case we were lucky that the flashlight is pointing toward the nebula and making the gas glow. We think this is part of a filament that may be even more extended than this, but we only see the part of the filament that is illuminated by the beamed emission from the quasar."
While the observations support the cosmological simulations' general picture of a cosmic web of filamentary structures, the researchers' results suggest around 10 times more gas in the nebula than predicted from typical computer simulations.
They postulate that this may simply be due to limitations in the spatial resolution of the current models, or, more interestingly perhaps, may be because the current grid-based models are missing some aspect of the underlying physics of how galaxies form, evolve, and interact with quasars.
"We now have very precise measurements of the amount of ordinary matter and dark matter in the Universe," said Prof Refregier.
"We can only observe a fraction of the ordinary matter, so the question is what form the remainder takes. These results may imply that a lot of it is in the form detected here."

http://www.bbc.co.uk/news/science-environment-25809967


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 Post subject: Re: Our universe is so rad!
PostPosted: Wed January 29, 2014 12:24 am 
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Our universe is so rad!? And we are the biggest assholes in it

http://www.popsci.com/article/science/l ... SOC&dom=fb


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 Post subject: Re: Our universe is so rad!
PostPosted: Wed January 29, 2014 3:53 pm 
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dimejinky99 wrote:
Our universe is so rad!? And we are the biggest assholes in it

http://www.popsci.com/article/science/l ... SOC&dom=fb


chud asked you the following question when you posted that link in GD:

cutuphalfdead wrote:
Not gonna lie, can't tell if you're Jesus Christ-ing NASA for not investigating potential alien life or the moron who won't accept that it's a rock.


please answer


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 Post subject: Re: Our universe is so rad!
PostPosted: Wed January 29, 2014 5:06 pm 
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Didn't see that. Jesus Christ is used as an expression of disbelief in Dublin vernacular, which is what I meant.
Though this is RM so I guess I could have meant Jesus Christ in an ironic sense.
Chud likes to troll me. I find it easier just to ignore him.
Wish someone would give him a blow job so he'd chill out a bit and stop trying to be the class smart ass. He's a bit old for that schtick.


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