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Cosmic background radiation and the hologram universe?
I've heard recently that the cosmic background radiation is evidence that we may not actually be where we observe ourselves to be, but actually nearer the edge of the universe. The hologram universe is one term I've heard this labeled as. Can anyone elaborate?
5 Answers
- green meklarLv 71 decade agoFavorite Answer
Okay, here's the idea. It is known at this point that whenever a particle falls into a black hole, all the information it carries is preserved (at least in a quantum sense) as a gravitational perturbation on the outer edge of the black hole. In other words, the 2-dimensional surface of the black hole fully represents all the particles that are located in 3 dimensions within it. It turns out that the observable universe is also bounded by an event horizon that in mathematical terms works in a similar way to that of a black hole. By extension, it may be possible to consider every particle within the observable universe as merely being a 'projection' from the 2-dimensional surface of the observable universe, 46 billion light years away from us. That, in a nutshell, is the holographic theory.
- 4 years ago
ok, first of all, that's conceivable for the universe to strengthen swifter than the cost of sunshine. no longer something can return and forth swifter than easy, actual, however the cosmic enlargement is the upward thrust in distance between galaxies somewhat than the circulate of galaxies themselves. throughout the inflation era, working example, which got here about (a techniques) under a 2nd after the great bang, the enlargement cost replaced into such that something the dimensions of an atom could have been blown as much as (extra desirable than) the dimensions of the observable universe on the instant. 2nd, the 'easy' of the CMB is, extra wisely the 'warmth' of the universe. think of the universe as a room that starts on the comparable temperature everywhere. This room is so great that the sunshine emitted at one section takes a together as to attain you on the centre, so which you're effectively seeing into the previous. Now think of that the room starts to get less warm. you will experience the temperature dropping around you quickly away, yet even although something of the room is cooling on the comparable cost, evidently warmer to you because of the fact you're seeing into the previous. As time is going on, the section around you will develop into freezing, yet once you seem on the room's partitions they nevertheless seem purple warm. that's strictly why we nevertheless see the CMB on the instant: the section around us has cooled to easily approximately no longer something, yet we are able to nevertheless see the exterior of final scattering, curiously nevertheless warm, interior the area. by the way, even with what Paula claims, the CMB isn't a fantasy. there is not any reason that radiation may be on the sting of the universe, vacationing far off from us on the cost of sunshine, and there is not any foundation for the declare that that's defined by chilly areas of the IGM. The CMB is fairly nicely measured, alongside with the minute modifications in temperature that happen interior the ideal comparable development as have been expected utilising inflationary cosmological theory.
- 1 decade ago
The Universe has no "edge". The view from any point within the Universe, to any other point is the same. The reason why objects at vast distances appear to be exotic, is that in looking vast distances, that are billions of light years away, we are actually looking back in time. In reality, today those areas are probably evolved to be very much the same as our own region of space. Cosmic background radiation, is the radiation left over from the original Big Bang. In a sense we are still within that Big Bang. There is no point, no "ground zero" of the Universe to go to where it all started. We are the Big Bang.
Source(s): Various Reading Physics and Astronomy - wilde_spaceLv 71 decade ago
Crazy idea, too crazy to be taken seriously by me. If I'm spread out somewhere on the edge of the universe, what am I doing here sitting in front of my computer and munching on food? Why am I not aware of myself being where I reall am?
No.
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- DLMLv 71 decade ago
I can tell you without reading the article that it's bogus.
The universe appears to be unbounded, meaning it has no edges.