Is Spacetime Shaped Like the Sea?

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Discussion Overview

The discussion revolves around the concept of spacetime and its shape, with participants exploring whether spacetime can be likened to the sea and discussing the relationship between Earth and spacetime. The scope includes conceptual clarifications and exploratory reasoning.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant questions the shape of spacetime, asking if it resembles the sea.
  • Another participant provides a definition of spacetime, explaining it as a mathematical model that combines space and time into a single continuum.
  • A participant seeks clarification on whether Earth exists above or within spacetime, referencing an external image for context.
  • One participant asserts that everything in the universe, including Earth, is "in" spacetime, expressing difficulty in conceptualizing what could exist outside of it.
  • Another participant agrees that Earth is in spacetime and suggests that the referenced image represents only one aspect of spacetime's structure.

Areas of Agreement / Disagreement

Participants generally agree that Earth is within spacetime, but there is no consensus on the shape of spacetime or its comparison to the sea. The discussion remains exploratory with multiple viewpoints presented.

Contextual Notes

Some statements rely on interpretations of spacetime that may vary, and the discussion does not resolve the conceptual uncertainties surrounding its shape or nature.

ريمان
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hi every one


I'm asked about the spacetime and his shape

is spacetmie like the sea or what?


thank for everyone
 
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Hello ريمان,


From Wikipedia:

From Wikipedia, the free encyclopedia
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For other uses of this term, see Spacetime (disambiguation).
In physics, spacetime is a mathematical model that combines three-dimensional space and one-dimensional time into a single construct called the space-time continuum, in which time plays the role of the 4th dimension. According to Euclidean space perception, our universe has three dimensions of space, and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a good deal of physical theory, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.

In classical mechanics, the use of spacetime over Euclidean space is optional, as time is independent of mechanical motion in three dimensions. In relativistic contexts, however, time cannot be separated from the three dimensions of space as it depends on an object's velocity relative to the speed of light.

I hope this helps.
TDS
 
tank you

is spactime like this http://www.blog.speculist.com/archives/spacetime.gif"

is Earth above spacetime or in spacetime

please help me this is very important informations for me


yyyyyyyyyyyhooooooooooooo
 
Last edited by a moderator:
My understanding is that spacetime is basically a frame of reference for the entire universe. That means that whatever is in the universe is "in" spacetime, including the earth. I can't imagine what would be "outside" spacetime.
 
are you mean the Earth is in spacetime not above spacetime
like this http://www.blog.speculist.com/archives/spacetime.gif
 
Last edited by a moderator:
Yes, that's right. The Earth is in spacetime. The picture just shows one surface out of many I'm guessing. That surface happens to run under the image of the earth. They can't show all the surfaces that make up spacetime in the picture otherwise you wouldn't be able to see the earth.
 
tank you very much you are so smart

ريمان
 

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