Electromagnetic spectrum/(dark)matter/4 fundamental forces

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SUMMARY

The discussion centers on the four fundamental forces of physics: gravity, electromagnetic, strong interaction, and weak interaction. Participants clarify misconceptions about the electromagnetic spectrum, specifically the relationship between photons and matter, and the nature of radioactive decay. The conversation also addresses the role of dark matter and dark energy in the universe, emphasizing that dark matter is attractive and contributes to galaxy cohesion, while dark energy is responsible for the expansion of the universe. The need for further reading on these topics is highlighted to correct misunderstandings.

PREREQUISITES
  • Understanding of the four fundamental forces: gravity, electromagnetic, strong interaction, weak interaction
  • Knowledge of the electromagnetic spectrum and its components, including photons, gamma rays, beta waves, and alpha particles
  • Familiarity with concepts of matter, energy, and radioactive decay
  • Basic comprehension of dark matter and dark energy in cosmology
NEXT STEPS
  • Research the electroweak interaction and its implications in particle physics
  • Study the properties and behaviors of photons in the electromagnetic spectrum
  • Explore the differences between dark matter and dark energy, including their roles in cosmic structure
  • Investigate the Higgs mechanism and its relationship to fundamental forces
USEFUL FOR

Students, educators, and enthusiasts in physics, particularly those interested in fundamental forces, the electromagnetic spectrum, and cosmology. This discussion is beneficial for anyone seeking to clarify misconceptions in these areas.

paulo84
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OK, I need some help understanding some stuff.

The way I see it: you've got 4 fundamental forces in physics right? I believe these are gravity, electromagnetic, strong interaction and weak interaction.

The electromagnetic spectrum is basically waves with photons (photons in all of the different ones, such as gamma and radio waves??). Once you reach one end of the spectrum, as in gamma rays, the next one up is beta waves (electrons) and then alpha waves (some kind of helium with bits missing iirc?). Here you're already essentially talking about matter. But, is a photon counted as matter?

OK so the EM spectrum seems to be extending into matter along gamma/beta/alpha waves. And, we know energy and matter are interchangeable anyway. But eventually, all matter decomposes - has a half-life. And then does it revert back into the EM spectrum? Is it actually like a EM/matter spectrum which might actually be a circle or a horseshoe rather than just a spectrum?

Because like, the radioactive metals that last for a fraction of a second before they decompose, well that's where I'd see this spectrum looping back on itself... or am I crazy?

And then back to the 4 fundamental forces... and dark matter... how do scientists know that say strong or weak interaction don't actually have a huge effect over greater distances (how would you measure that??) and might actually be what's pushing the galaxies apart rather than dark matter? could be an inverse effect...

sorry if it's all a little crazy or inaccurate in places...
 
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paulo84 said:
gravity, electromagnetic, strong interaction and weak interaction.
Okay.
paulo84 said:
you reach one end of the spectrum, as in gamma rays, the next one up is beta waves
No.
Here's result from Google --- https://www.google.com/?gws_rd=ssl#q="em+radiation" --- work your way through a half dozen or dozen articles --- then try rephrasing one or two questions at a time.
 
paulo84 said:
The way I see it: you've got 4 fundamental forces in physics right?
Depends on the way you count. The electromagnetic interaction and weak interaction can be combined to the electroweak interaction.
The Higgs mechanism can be seen as part of the electroweak interaction or as some separate interaction.
paulo84 said:
Once you reach one end of the spectrum, as in gamma rays, the next one up is beta waves (electrons) and then alpha waves (some kind of helium with bits missing iirc?).
No, not at all.
paulo84 said:
But eventually, all matter decomposes - has a half-life.
There are stable particles.
paulo84 said:
Because like, the radioactive metals that last for a fraction of a second before they decompose, well that's where I'd see this spectrum looping back on itself... or am I crazy?
That doesn't make sense.
paulo84 said:
how do scientists know that say strong or weak interaction don't actually have a huge effect over greater distances
Something like planets would not exist if they would have an effect over large distances (where large means larger than the size of an atom).
paulo84 said:
and might actually be what's pushing the galaxies apart rather than dark matter?
Dark matter is not pushing galaxies apart. Dark matter is attractive and keeps galaxies together. Dark energy is pushing galaxies apart from other galaxies.

I agree with Bystander: start reading about those topics before you make up wild speculations and questions that are based on too many misconceptions for a proper answer.
 
OK, thanks, I'll try and get back to you, I really need to either do some reading or talk to an experienced physicist in real life... would prefer the latter but may not be possible for a while.
 

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