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meteor
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I vote for the Minkowski metric for the Universe in general, but I think that locally there exists other metrics, for example the Schwarzschild metric around black holes
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Originally posted by meteor
I vote for the Minkowski metric for the Universe in general, but I think that locally there exists other metrics, for example the Schwarzschild metric around black holes
Originally posted by meteor
Yes, iknew that Minkowski metric was the metric of Special relativity, but can't you use the Minkowski metric in an expanding Universe? (I believe that the universe is expanding)
I want a metric that is flat.I know that Einstein-De Sitter metric is a flat metric, but it's not for a expanding Universe. I will look in Internet.
Originally posted by Jack
I have not seen any of those words before and don't have the foggiest idea of what a 'metric of the universe' is. Could someone please explain?
I want to correct myself. The Einstein-de Sitter metric is the metric of an expanding universeI want a metric that is flat.I know that Einstein-De Sitter metric is a flat metric, but it's not for a expanding Universe. I will look in Internet.
Yeah, I remember that the results of WMAP indicated that the Universe was flat, but now I'm not very sure in which of the two kind of spaces that you are mentioning they referred. I searched a flat metric for that reason.You know, a metric that makes that the universe,or has a boundary, or it's infinite and unlimited.If I can't take the Minkowski metric I thin I will get the Einstein-de Sitter metricHi meteor, good luck in the search! Astronomers cause everyone much confusion by using "flat" in two separate ways.
Originally posted by meteor
I want to correct myself. The Einstein-de Sitter metric is the metric of an expanding universe
Yeah, I remember that the results of WMAP indicated that the Universe was flat, but now I'm not very sure in which of the two kind of spaces that you are mentioning they referred. I searched a flat metric for that reason.You know, a metric that makes that the universe,or has a boundary, or it's infinite and unlimited.If I can't take the Minkowski metric I thin I will get the Einstein-de Sitter metric
The metric of the Universe refers to the measurement system used to quantify and describe the properties and phenomena in the Universe. It is a fundamental concept in physics and cosmology.
The metric of the Universe is determined by studying the properties and behavior of matter and energy in the Universe and using mathematical models and theories to describe and measure them.
No, there is no single metric that can measure the entire Universe. The vastness and complexity of the Universe require different metrics to measure different phenomena and scales.
Some common metrics used in the study of the Universe include distance measures such as light-years and astronomical units, time measures such as years and seconds, and energy measures such as joules and electron volts.
The metric of the Universe is crucial in our understanding of the cosmos as it helps us quantify and compare different aspects of the Universe, such as the size, age, and expansion rate. It also plays a significant role in shaping our theories and models of the Universe's evolution and structure.