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POPSPhysicists Calculate Number of Parallel Universes
Think it's crazy? Check this out, then: To work these numbers out, Linde and Vanchurin looked back to the time shortly after the Big Bang, which they view as a quantum process that generated lots of quantum fluctuations. Then during the period of inflation, the universe grew rapidly and these quantum fluctuations were "frozen" into classical perturbations in distinct regions. Today, each of these regions could be a different universe, having its own distinct laws of low energy physics. By analyzing the mechanism (called "slow roll inflation") that initially generated the quantum fluctuations, the scientists could estimate the number of resulting universes at 10^10^10^7 (a number which is dependent on the model they used). However, this number is limited by other factors, specifically by the limits of the human brain. Since the total amount of information that one individual can absorb in a lifetime is about 10^16 bits, which is equivalent to 10^10^16 configurations, this means tha
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POPSFamily Guy Season Premiere 2009 Family Guy Season 8 Episode 1, Watch Family Guy Season 8 Episode 1, Watch Family Guy Season 8 Episode 1 Online, Family Guy S08E01, Family Guy Season Premiere 2009, Family Guy Season 8 Premiere, Family Guy Full Episodes, Watch Family Guy Online, Family Guy Season 8 Episode 1 Watch Online
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POPSParallel Universe? They say it's photo manipulation, but I wonder... What if they're for real? Perhaps the photographer is an inter-dimensional traveller, touring the Multiverse....... Nah, no way! "Everything is possible, but nothing is real"
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POPSDark flow, when the universe as you know is closing on you
"If confirmed, this will be an exciting way of probing the ultimate structure of the universe and perhaps even the multiverse," Kashlinsky says. "But you have to check and recheck." "If this thing is confirmed and it is real, it will be incredibly important," says Aguirre, "on the same order of discovery as the realisation that those little smudges on the sky are other galaxies. The most important thing it would tell us is that the standard picture is broken in some way. And the most exciting thing it could tell us is that there are other universes." If it does, space and time will open up to reveal a reality that is so much bigger than we know. When that happens, those claustrophobia-stricken cosmologists will finally be able to breathe easy." What i find as most interesting is the passion to go beyond the obvious barriers. As i read once in a book series i love, the golden age, even in the size of the universe, a jail is still a jail...
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POPSDoes Time Run Backward in Other Universes? Other researchers are working on related ideas, as more and more cosmologists are taking seriously the problem posed by the arrow of time. It is easy enough to observe the arrow—all you have to do is mix a little milk into your coffee. While sipping it, you can contemplate how that simple act can be traced all the way back to the beginning of our observable universe and perhaps beyond
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POPSThe Multiverse "As for Linde, he is especially interested in the mystery of consciousness and has speculated that consciousness may be a fundamental component of the universe, much like space and time. He wonders whether the physical universe, its laws, and conscious observers might form an integrated whole. A complete description of reality, he says, could require all three of those components, which he posits emerged simultaneously. “Without someone observing the universe,” he says, “the universe is actually dead.”"
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POPSScience's Alternative to an Intelligent Creator: the Multiverse Theory
The idea that the universe was made just for us—known as the anthropic principle—debuted in 1973 when Brandon Carter, then a physicist at Cambridge University, spoke at a conference in Poland honoring Copernicus, the 16th-century astronomer who said that the sun, not Earth, was the hub of the universe. Carter proposed that a purely random assortment of laws would have left the universe dead and dark, and that life limits the values that physical constants can have. By placing life in the cosmic spotlight—at a meeting dedicated to Copernicus, no less—Carter was flying in the face of a scientific worldview that began nearly 500 years ago when the Polish astronomer dislodged Earth and humanity from center stage in the grand scheme of things. Carter proposed two interpretations of the anthropic principle. The “weak” anthropic principle simply says that we are living in a special time and place in the universe where life is possible. Life couldn’t have survived in the very early universe
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POPSThe Statistical Universe - On the Vastness of the universe But inflation does not really make the universe more uniform — just huge. If inflation is correct, then the billions of light-years that our telescopes probe are a mere dot on a far vaster canvas. The multiverse comprises a large number of distinct patches, each far bigger than our night sky. What observers see, therefore, also depends on where they find themselves. Most of the regions in the multiverse are inhospitable to life, and their properties will not be observed. But what exactly is life? In order to extract predictions from the multiverse, my colleagues and I have developed a statistical tool to find regions with observers: We look not for life itself but for the disorder left behind by the complex processes that its formation depends on. To understand the physical signatures of life in this way may help us finally to comprehend our own little corner of the multiverse. Interesting Read.
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POPSIs our universe fine-tuned for life? The Anthropic Principle Under Scrutiny Adams selected a range of possible values for each of these constants, then put them into a computer model that created a multitude of universes, or a virtual "multiverse". Each universe within the multiverse used different values for the three constants and was subject to slightly different laws of physics. About a quarter of the resulting universes turned out to be populated by energy-generating stars. "You can change alpha or the gravitational constant by a factor of 100 and stars still form," Adams says, suggesting that stars can exist in universes in which at least some fundamental constants are wildly different than in our universe.
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POPSDark, Perhaps Forever - Clueless about the universe Whatever proposal is eventually selected, the dark energy satellite will return a tidal wave of data about the universe and its weird denizens, both visible and invisible. This data is likely to transform astronomy in unpredictable ways, but there is no guarantee that it will nail the mystery of dark energy. “We really need new theory, and we have none,” Dr. Krauss said.
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