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Dmitri Martila
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The (most popular) flat model of Universe is space-infinite. How the infinity is measured? Can you give me references to the papers about the actual infinity of space?
It is the measurement of local curvature. I am talking about the measurement of the diameter of the Universe by the ruler.rootone said:I don't think it's measured as such, but is the inevitable inference of zero curvature.
It's not certain from measurements that curvature of the Universe as a whole actually is zero, but if it is present it's very small.
There aren't any, because the spatial extent of the universe as a whole is not part of the model, nor can you ever measure anything from beyond the cosmic event horizon.Dmitri Martila said:The (most popular) flat model of Universe is space-infinite. How the infinity is measured? Can you give me references to the papers about the actual infinity of space?
As long as by 'local' you mean whole of the observable universe. Curvature measurements use CMBR, so it's the longest ruler you can get. The most recent such measurements can be found in PLANCK mission's 2015 results papers.Dmitri Martila said:It is the measurement of local curvature. I am talking about the measurement of the diameter of the Universe by the ruler.
The concept of infinity is a mathematical concept that describes something that is unbounded and endless. While it can be applied to abstract ideas and numbers, it is not clear if it can be applied to the physical world. There is ongoing debate and research among scientists about whether space can truly be infinite, or if there is a limit to its size.
Measuring the size of space is a complex and ongoing process. Currently, scientists use various methods such as triangulation, parallax, and redshift to measure distances between celestial objects and estimate the size of the observable universe. However, these methods have limitations and may not accurately reflect the true size of space.
The current scientific consensus is that the universe is expanding, but whether it is infinite or not is still unknown. The expansion of the universe suggests that it has no boundary, but it could still have a finite size. Ongoing research and advancements in technology may one day provide a definitive answer to this question.
If the universe is infinite, then there is no edge to reach. However, if the universe is finite, it may be possible to reach its edge. However, due to the vast distances and limitations of our technology, it is currently not possible to reach the edge of space.
The concept of infinity has a significant impact on our understanding of the universe. It challenges our perceptions of space and time and raises questions about the nature of reality. The possibility of an infinite universe also has implications for the existence of other intelligent life forms and the potential for multiple universes. It continues to be a topic of exploration and debate among scientists.