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A theory that describes how matter interacts dynamically with the geometry of space and time. It was first published by Einstein in 1915 and is currently used to study the structure and evolution of the universe, as well as having practical applications like GPS.

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1 answer
58 views

The idea behind the geometrical description of a closed curved space

This question is about the idea of how to describe a curved space, I'm not asking for formulas because I've never studied this topic before. Let's imagine an ant on a sphere, it will use two coordinat …
SimoBartz's user avatar
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4 votes
1 answer
374 views

Do we give a mathematical structure to the system or to its representation?

My professors taught me that in physics you have to make a mathematical representation of the physical system. Depending on what type of physics you are working on, the mathematical models change. I …
SimoBartz's user avatar
  • 1,978
0 votes
4 answers
1k views

Curved space-time and metric tensor

I'm studying about curved spaces and I read that a manifold is flat if there a coordinate system such that the metric tensor is constant everywhere. Then I also read that when the space-time tensor i …
SimoBartz's user avatar
  • 1,978