Is Newton's Concept of Space Still Relevant in Modern Physics?

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Discussion Overview

The discussion centers on the relevance of Newton's concept of space in modern physics, exploring whether it has been disregarded in favor of other philosophical views, such as Aristotle's notion of space as non-existent in a vacuum. Participants examine the implications of these views on the understanding of space in contemporary scientific discourse.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Meta-discussion

Main Points Raised

  • Some participants question the relevance of Newton's idea of space as an actual entity, suggesting it may have been disregarded in modern physics.
  • One participant emphasizes the need for clearer definitions of terms like "actual thing" to avoid circular discussions.
  • A participant raises the possibility of Aether theories as a related concept to the discussion of space.
  • Another participant argues that space can be viewed as a vacuum filled with fields and radiation, while acknowledging the continued practical use of Newton's equations in applications like NASA's calculations of gravitational forces.
  • There is a philosophical perspective presented that considers space as either separate from matter or as a relational concept dependent on the existence of objects.
  • A participant concludes that the question may not be scientific but rather philosophical, suggesting a potential lock on the thread for further clarity.

Areas of Agreement / Disagreement

Participants express differing views on the nature of space, with some supporting Newton's relevance and others advocating for alternative philosophical interpretations. The discussion remains unresolved, with no consensus reached on the validity of Newton's concept in modern physics.

Contextual Notes

The discussion highlights limitations in definitions and assumptions regarding the nature of space, as well as the philosophical implications of these views. There are unresolved questions about the relationship between space, matter, and the universe.

thinkandmull
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I've been wondering if space as understood by Newton, as an actual thing that contains matter, is relevant to modern physics. Has Newton's idea been disregarded? Is Aristotle's view that there is no space-vacuum now accepted? Thanks
 
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I think without better defined terms, your question is unanswerable and we'll just go around and around and around in circles. For example, what is an "actual thing" and how does it differ from a plain old "thing"?
 
Well think about it do you think space is full of matter or do you think it is a vacuum? then you have answered your own question =) Space is a vacuum but filled with the Higgs field and allot of em radiation. Along with solar winds and all the matter. Also even if Newton was wrong NASA still use his equations to work out gravitational forces and it works great so he did something right.
 
I believe what the OP is talking about is that certain philosophers think of space as being "separate" from matter and energy. So in a completely empty universe, space would still exist. On the other hand, some believe that space is only a relationship between objects, so in a completely empty universe there would be no space (and probably no universe either).

Unfortunately there's no way to know either way, so this isn't a science question but a philosophical one. I'm going to lock the thread. Thinkandmull, if you meant something else, something which science can possibly observe, then please contact me and I'll re-open the thread.
 
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