Trying to wrap my pea sized brain around the universe.

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Discussion Overview

The discussion revolves around concepts of relativity, particularly in the context of superluminal transmission of information and the nature of motion as perceived by different observers. Participants explore the implications of relativity on speed and the understanding of motion from various frames of reference.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Dale mentions that a person on a space-faring ship perceives themselves as stationary, leading to the assertion that they can never reach the speed of light, regardless of external observations.
  • Some participants argue that nothing can surpass the speed of light due to the symmetry of the universe and its asymptotic nature.
  • Another participant challenges Dale's statement about relativity, suggesting that the idea of being stationary relative to oneself is trivial and emphasizes that all motion is relative to the observer's frame of reference.
  • A participant expresses confusion about why Dale did not specify the book he is reading, suggesting that knowing the title would aid in understanding the context of his questions.
  • Concerns are raised about the validity of the book's claims regarding superluminal transmission, with a suggestion to refer to mainstream physics texts for a more reliable understanding of special relativity.

Areas of Agreement / Disagreement

Participants express differing views on the interpretation of relativity and the implications of superluminal transmission. There is no consensus on the validity of the book Dale is reading or its claims.

Contextual Notes

Some participants highlight the importance of specifying the source material when discussing complex topics, indicating that the lack of details may hinder productive discussion. The conversation also reflects a potential divide between mainstream physics and fringe theories.

Frozenoak
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I have been reading an aged book about superluminal transmition of information. I am only a couple chapers into the book, the part where the author is introducing the uninitiated (that would be me) to the concepts of reletivity. On thing he keeps coming back to is that time, length and mass are all relitive to the observer. The statement I am wondering about is this.

If a man is standing on the bridge of some space faring ship he is standing still relative to himself, therefor he can never reach the speed of light no matter how fast the ship appears to be moving to someone on the outside.

I can give referance to the book at a latter time but I don't have it with me atm.

Regards,
dale
 
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From my understanding, nothing can surpass the speed of light do to the symmetry of the universe and how its asymptocal?. Someone correct me if I am wrong.
 
If a man is standing on the bridge of some space faring ship he is standing still relative to himself, therefore he can never reach the speed of light no matter how fast the ship appears to be moving to someone on the outside.
I think maybe you've misquoted the book. Everything is always stationary 'relative to itself', so it hardly seems worth mentioning.
The point about relativity is that all motion is relative, so the idea of motion only makes sense if we specify who is measuring which velocity. It is also true that nothing can accelerate so that it reaches the speed of light, in anyone's frame of reference.
 
I have some off topic questions if Dale will indulge me...

Frozenoak said:
I have been reading an aged book about superluminal transmition of information.

Dale, I often see posters do this and it always baffles me, so if you don't mind I'll share my bafflement: why oh why would anyone ask about a book which is puzzling them without saying which book is giving them trouble? I would think it would be obvious that this is highly relevant information which would greatly assist us in helping you!

Warning: "superluminal transmission of information" is forbidden in relativistic physics, and this was recognized rather early, so if the book you are reading contradicts this assertion, I must suspect that it does not belong to the canon of mainstream physics. In that case, I hope you will see the wisdom of first studying str using a mainstream textbook such as Taylor and Wheeler. After you know what str says (as explained in a modern and reliable source), you will be in a better position to critique outdated or fringe books.

Frozenoak said:
I can give referance to the book at a latter time but I don't have it with me atm.

Sigh... OK, well I guess you answered my question above, but now I have a new question. I often see readers who say they are reading some book but who say or imply that they have no idea who the author is, what the title is, or where and when it was published, or even in what language it was originally published. So what's going on with that?
 

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