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On a Very Large Scale Spatial Curvature? (Repost-Friday, March 18, 2005)
Friday, March 18, 2005 On a Very Large Scale Spatial Curvature? So you developed this sense on the large scale about what is possible given certain circumstances. What is driving inflation? As this universe expands and we realize that Omega=1 one has to assume that teetering on the brink of a topological form has some…
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Neutrino Interactions
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Cosmology Tensions Explained
Interlocutor:There have recently been discoveries regarding satellite information that may throw into question, about the old cosmology being transformed into the new? Socrates: Yes. If by “the old cosmology being transformed into the new” you mean that the ΛCDM picture—the standard cosmological model—is increasingly being treated as an extraordinarily successful approximation rather than necessarily the…
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A Superset Universe?
How would you draw a Universe with all theories as being part of, as a subset? Pictorial representations can be very useful in presenting information or assisting reasoning. Venn diagram is an example. Venn diagrams are used to represent classes of objects, and they can also assist us in reasoning about the relations between these…
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Conformal Cyclic Cosmology….
Penrose’s Conformal Cyclic Cosmology, from one of his Pittsburgh lecture slides in June, 2009. Photo by Bryan W. Roberts Also see: BEFORE THE BIG BANG: AN OUTRAGEOUS NEW PERSPECTIVE AND ITS IMPLICATIONS FOR PARTICLE PHYSICS ……. (CCC) is a cosmological model in the framework of general relativity, advanced by the theoretical physicist Sir Roger Penrose.[1][2]…
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Big Bounce
Physical cosmology Universe · Big BangAge of the universeTimeline of the Big BangUltimate fate of the universe [show]Early universe Inflation · NucleosynthesisGWB · Neutrino backgroundCosmic microwave background [show]Expanding universe Redshift · Hubble’s lawMetric expansion of spaceFriedmann equationsFLRW metric [show]Structure Formation Shape of the UniverseStructure formationReionizationGalaxy formationLarge-scale structureGalaxy filaments [show]Components Lambda-CDM modelDark energy · Dark matter…
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Cyclic model
Physical cosmology Universe · Big BangAge of the universeTimeline of the Big BangUltimate fate of the universe [show]Early universe Inflation · NucleosynthesisGWB · Neutrino backgroundCosmic microwave background [show]Expanding universe Redshift · Hubble’s lawMetric expansion of spaceFriedmann equationsFLRW metric [show]Structure Formation Shape of the UniverseStructure formationReionizationGalaxy formationLarge-scale structureGalaxy filaments [show]Components Lambda-CDM modelDark energy · Dark matter…
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Physical Cosmology
Physical cosmology Physical cosmology Universe · Big BangAge of the universeTimeline of the Big BangUltimate fate of the universe [show]Early universe Inflation · NucleosynthesisGWB · Neutrino backgroundCosmic microwave background [show]Expanding universe Redshift · Hubble’s lawMetric expansion of spaceFriedmann equationsFLRW metric [show]Structure Formation Shape of the UniverseStructure formationReionizationGalaxy formationLarge-scale structureGalaxy filaments [show]Components Lambda-CDM modelDark energy ·…
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Man Looking into Outer Space
“We all are of the citizens of the Sky” Camille Flammarion In 1858, by the set of its relations, it will allow Camille Flammarion, the 16 years age, to enter as raises astronomer at the Observatory of Paris under the orders of Urbain the Glassmaker, at the office of calculations. I was over at Cosmic…
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Mersenne Prime: One < the Power of two
It looks as though primes tend to concentrate in certain curves that swoop away to the northwest and southwest, like the curve marked by the blue arrow. (The numbers on that curve are of the form x(x+1) + 41, the famous prime-generating formula discovered by Euler in 1774.) This is part of the education of…
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First Stars Behind the Scene
There are several recognized processes from the early universe that leave relic effects setting the stage for galaxy formation and evolution. We deal here with the first generarion of stars, primordial nucleosynthesis, the epoch of recombination, and the thermal history of various cosmic backgrounds. Part of understanding the time line is first knowing where the…
