Is spacetime not the same as space and time ?

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Discussion Overview

The discussion centers on the conceptual differences between spacetime and the classical notions of space and time. Participants explore the properties of each and how they relate to theories such as general relativity and Newtonian physics.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant asks for clarification on the differences between spacetime and the individual concepts of space and time, suggesting that each has distinct properties.
  • Another participant states that space and time are classical concepts, unified into the entity of spacetime by Einstein's theory of general relativity.
  • A different viewpoint suggests that space and time can be viewed as two sides of the same coin, emphasizing their interconnection through relativity.
  • A participant references Newtonian spacetime, noting that while spatial and temporal separations are agreed upon in classical physics, this agreement does not extend to their individual components in special relativity.
  • The original question is reiterated, highlighting the perceived independence of space and time in Newton's view, contrasted with the interdependence described by spacetime.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between space, time, and spacetime, indicating that multiple competing perspectives remain without consensus.

Contextual Notes

There are unresolved assumptions regarding the definitions and properties of space, time, and spacetime, as well as the implications of different physical theories.

Atheists Era
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is spacetime not the same as space and time ??

please explain what's the difference between "spacetime" and, space and time ?

i heard space has it's own properties and time has it's own properties but "spacetime" has completely different properties. Please explain. Thanks
 
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Space and time are classical physics concepts. Einstein showed that they are actually both parts of one entity, spacetime. Google "general relativity"
 
You can think of space and time as two sides of the same coin, which would be spacetime. This is the main idea behind general relativity. Space and time are two separate things, but are united (some prefer "married") by the theory of relativity.
 
In Newtonian spacetime, everyone agrees on the spatial separation [tex]\Delta x = \sqrt{x^{2} + y^{2} + z^{2}}[/tex] of events and the temporal separation of events [tex]\Delta t[/tex]
In special relativity, everyone agrees on the spatiotemporal distance between events [tex]c^{2} \tau^{2} = \sqrt{c^{2}t^{2} - x^{2} - y^{2} - z^{2}}[/tex] but not the spatial [tex]\Delta x =\sqrt{- x^{2} - y^{2} - z^{2}}[/tex] and temporal [tex]ct[/tex] components individually.
 
Atheists Era said:
is spacetime not the same as space and time ??

please explain what's the difference between "spacetime" and, space and time ?

i heard space has it's own properties and time has it's own properties but "spacetime" has completely different properties. Please explain. Thanks

Newton thought that space and time were independent, but they aren't. This interdependence is known as spacetime.
 

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