Hello... CMBR was produced from the big bang 13.7 billion years ago, and are still detected today all around the univerise. They all posses the same exact temperature.
For me, it makes sense that they have the same exact temperature, since they were all emitted 13.7 billions years ago, thereofre, cooling at the same rate.
However, for scientists, its a "problem" that all these radio waves have the same exact temperature. They call this problem the "Horizon Problem"....
Why is it a problem that they posses the same exact temperatures?
2006-10-04 17:32:32 · 4 answers · asked by Xeel 1 in Science & Mathematics ➔ Astronomy & Space
no ur wrong poster #1... Read below.. its from a site
The uniformity of cosmic background radiation--varying by no more than one part in 10,000, where ever you look--posed a problem to Standard Big Bang cosmology. Suppose the universe began 14 billion years ago. We look to the west, we detect cosmic background radiation. We turn our radio antennas to the east, we detect cosmic background radiation--at exactly the same temperature
2006-10-04 17:53:18 · update #1
The problem would be if it was exactly and precisely the same "temperature" wherever one looked. It is not, there are variations. But, those variations don't account for all the variations in the way mass has accumulated here and there in the universe. With the background radiation being so "uniform" or homogenous, why isn't the distribution of matter in the universe also so uniform. That's the problem for cosmologists to explain. And, like poster number one suggested read up on the COBE and WMAP.
2006-10-04 20:00:23 · answer #1 · answered by quntmphys238 6 · 0⤊ 0⤋
the great Bang is defined in any different case now than it replace into as quickly as while it replace into as quickly as first postulated. i think the unique theory was once the extra ultimate suited one so a ways through fact the movements that took place in those first moments bypass. in spite of everything, at the same time as you introduce the electromagnetic spectrum on a void, formless merchandise that's supposed to be subject remember, the end result's an explosion of light and sound, with the entire element organizing itself consistent with the variety new actual criminal regulations imposed on it. nevertheless needs an initiator, of direction, and it did no longer take place as "long in the previous" as many human beings declare. we've least complicated long long previous around our movie star 6-10,000 activities considering that that day (different aspects of the universe would additionally be older or youthful, yet besides the actuality that with the equivalent temporal beginning, through timey-wimey ball). The purple shift is effectively a demonstration that the coolest purchase in the universe is moving aside, proving it had a particular factor of beginning. there is not any disagreement on that so a ways as i understand. i will want a refresher direction on the cost of this cosmic microwave background radiation, even nevertheless. no longer particular what it has to do with no remember if or no longer the universe has a delegated beginning place. @ Alexis: maximum helpful "creationists" who do no longer think in the biblical flood think of the earth replace into created to "take place historical." What you call age I call water harm.
2016-12-08 08:42:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The CMBR is NOT exactly the same temperature. That's what cosmologists are so excited about, and how they can tell the age of the universe. For more info, Google WMAP or COBE.
2006-10-04 17:50:48 · answer #3 · answered by craig p 2 · 0⤊ 0⤋
the 'cmbr' is localised and is a function of temprature and noise figures of the detection equipment
2006-10-04 22:09:03 · answer #4 · answered by daniel g 7 · 0⤊ 0⤋