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skydivephil
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Its said that a wormhole could allow effective FTl travel by creating short cuts in the fabric of space tme. but if the universe is flat , how would this be a short cut? Doesnt the universe need to be curved for that?
skydivephil said:Its said that a wormhole could allow effective FTl travel by creating short cuts in the fabric of space tme. but if the universe is flat , how would this be a short cut? Doesnt the universe need to be curved for that?
Our universe is globally flat, on average, over large distance scales. Locally it is very much curved (around planets, stars, galaxies, etc.). Wormholes, were they to exist, would just be another example of local curvature that doesn't effect the global, average curvature.skydivephil said:Its said that a wormhole could allow effective FTl travel by creating short cuts in the fabric of space tme. but if the universe is flat , how would this be a short cut? Doesnt the universe need to be curved for that?
A flat universe refers to the shape of the universe as a whole. In a flat universe, the geometry of space is flat, meaning that parallel lines will never intersect and the angles of a triangle add up to 180 degrees. This is in contrast to a closed universe, where space curves back on itself, or an open universe, where space is negatively curved. A flat universe is currently the most widely accepted hypothesis for the shape of our universe based on observations of cosmic microwave background radiation.
Scientists have been able to determine the shape of the universe through various observations and measurements. One key piece of evidence for a flat universe comes from the cosmic microwave background radiation, which is the residual heat left over from the Big Bang. The patterns and fluctuations in this radiation appear to be consistent with a flat universe. Additionally, measurements of the cosmic microwave background by the Planck satellite have confirmed a flat geometry with a high degree of accuracy.
Wormholes are theoretical objects in space that are predicted by Einstein's theory of general relativity. They are essentially shortcuts through space-time, connecting two distant points in the universe. Wormholes have not yet been observed or confirmed to exist, but they are a popular topic in science fiction and are still being studied by scientists as a possible phenomenon.
Currently, there is no known way to travel through a wormhole. The concept of wormholes is still purely theoretical, and even if they do exist, they would likely be incredibly small and unstable. The intense gravitational forces near a wormhole would also make it difficult for anything to pass through without being destroyed. However, scientists continue to explore the possibility of manipulating space-time to create stable wormholes for potential future travel.
The concept of using wormholes for time travel is a popular one in science fiction, but it is currently not supported by scientific evidence. While wormholes do involve bending space-time, they do not necessarily lead to time travel. The theory of general relativity allows for the possibility of time travel, but it also presents many challenges and paradoxes that make it unlikely to be achievable in practice. More research is needed to fully understand the potential of wormholes and their role in time travel.