Will Gravitons Redefine Our Understanding of the Electromagnetic Spectrum?

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Discussion Overview

The discussion revolves around the relationship between gravitational waves and the electromagnetic spectrum, particularly whether gravitational waves represent a new spectrum or are part of the existing electromagnetic spectrum. Participants explore concepts related to gravity, electromagnetic radiation, and the hypothetical graviton.

Discussion Character

  • Debate/contested

Main Points Raised

  • Some participants suggest that gravitational waves open up a new spectrum for observation, potentially below the radio part of the electromagnetic spectrum.
  • Others argue that gravitational waves are disturbances in spacetime and not part of the electromagnetic spectrum, questioning the notion of a "new spectrum" in this context.
  • A participant references an article that claims gravitational waves represent an entirely new spectrum, separate from the electromagnetic spectrum.
  • Another participant clarifies that the author of the article denies that gravitational waves belong to the electromagnetic spectrum, emphasizing that they are distinct phenomena.
  • One participant inquires whether other aspects of physics exist outside the electromagnetic spectrum, expressing confusion about the categorization of gravitational radiation.
  • It is noted that gravitational waves are fundamentally different from electromagnetic waves, as they are not composed of photons, leading to the idea that they cannot be in the same spectrum.
  • A question is raised about the potential inclusion of gravitons in the electromagnetic spectrum if they are discovered, to which a participant responds that gravity is not electromagnetism.

Areas of Agreement / Disagreement

Participants express disagreement regarding the classification of gravitational waves and their relationship to the electromagnetic spectrum. No consensus is reached on whether gravitational waves represent a new spectrum or are part of the existing electromagnetic spectrum.

Contextual Notes

Participants reference articles and concepts that may contain assumptions or definitions that are not fully explored in the discussion. The relationship between quantum mechanics, general relativity, and gravity remains unresolved.

Vast
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I’ve read in many online articles that gravity waves open up a whole new spectrum to observe in, I’m thinking this would be down toward the lower end, below the radio part of the spectrum, is this correct?
 
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Vast said:
I’ve read in many online articles that gravity waves open up a whole new spectrum to observe in, I’m thinking this would be down toward the lower end, below the radio part of the spectrum, is this correct?

Wat?! I've never heard anything like that. gravity waves are nothing but a traveling disturbance through spacetime. they are not an electromagnetic wave, and are no where on the em spectrum. where did you read this? maybe ur not understanding it because you wrote "whole new spectrum". I've never of any gravity wave spectrum...
 
DB.

Maybe I am reading it wrong, but in
this article its worded like this: Scroll down to the middle where it says "A balck hole is born"

we have explored the whole of the electromagnetic spectrum. Gravitational waves represent an entirely new spectrum.
 
Vast, you are reading it wrong. You are thinking "new spectrum" means "New part of electromagnetic spectrum", but the author is explicitly denying this. He is saying we know what is in every part of the electromagnetic spectrum and gravity waves aren't in there. So gravity waves must be a whole other spectrum apart from electromagnetism.
 
SelfAdjoint, maybe you can clear something up for me. Is anything else in physics part of another spectrum entirely?, because as far as I know, everything we observe, be it gamma rays all the way down to radio waves is part of the electromagnetic spectrum. I would think that gravitiational radiation being another physical manifestation of a celestial body, (stars, pulsars, black holes) also lie somewhere along the electromagnetic spectrum.
 
Vast said:
SelfAdjoint, maybe you can clear something up for me. Is anything else in physics part of another spectrum entirely?, because as far as I know, everything we observe, be it gamma rays all the way down to radio waves is part of the electromagnetic spectrum. I would think that gravitiational radiation being another physical manifestation of a celestial body, (stars, pulsars, black holes) also lie somewhere along the electromagnetic spectrum.
if only it were that easy. for the past while physicists have been trying to link QM, GR, and gravity. gravity seems to be the odd man out when it comes to either QM or SR/GR. electromagnetic radiation (i.e. em spectrum waves) are purely made up of photons, gravitational waves are not. therefore they cannot be in the same spectrum. in order to link QM,GR and gravity, physicists have came up with a hypothetical particle called the graviton, which one again, is not the same as a photon.
 
Ah, yes! the challenge of unifying GR with QM.

A question then: If a gravition is shown to exist in some future particle accelerator, (hopefully the LHC) will it be included in the electromagnetic spectrum?
 
Vast said:
A question then: If a gravition is shown to exist in some future particle accelerator, (hopefully the LHC) will it be included in the electromagnetic spectrum?

No. Gravity is not electromagnetism.
 

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