Matter, energy, space, time and gravity

  • Thread starter Dremmer
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  • #1
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Are these five different things or are they just variations or properties of the same thing?
 

Answers and Replies

  • #2
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They are different things (which is the reason why they have different names).
Their interaction is the topic of physics.
 
  • #3
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Matter is the only one of these that we can perceive directly. We cannot perceive energy, gravity, space or time directly.
 
  • #4
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We do not perceive matter directly, we perceive nothing directly.
 
  • #5
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Mathematical model that combines space and time is Spacetime that curves (gravity) in presence of matter (mass/energy).
 

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