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TrickyDicky
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Does the current model of cosmology treat the universe as an isolated system?
I thought it was clear I was referring to the FRW universe of the LCDM model.mathman said:There are many different models, each of which answers that question somewhat differently.
Try "universe theories" on Google.
TrickyDicky said:I thought it was clear I was referring to the FRW universe of the LCDM model.
An isolated system is a theoretical concept in physics that refers to a system that does not interact with its surroundings in any way. This means that there is no exchange of matter or energy between the system and its environment.
The universe is often described as an isolated system, as it is believed to be self-contained and not interacting with any external forces or systems. However, this is still a subject of debate among scientists and some argue that the universe may not be completely isolated.
If the universe is truly an isolated system, it means that it follows the laws of thermodynamics, specifically the conservation of energy. This means that the total amount of energy in the universe remains constant and cannot be created or destroyed.
The Big Bang theory, which explains the origins of the universe, is based on the idea that the universe began as a highly concentrated and hot singularity. This singularity is often described as an isolated system, as it was not influenced by any external factors before the Big Bang occurred.
Some scientists argue that it is impossible for a truly isolated system to exist in the universe, as there will always be some level of interaction and exchange with the environment. This is due to the constant movement and energy fluctuations within the universe.