Could a Fifth Force of the Universe Exist?

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Discussion Overview

The discussion centers around the possibility of a fifth fundamental force of the universe, alongside the established four forces: electromagnetic, gravitational, strong nuclear, and weak nuclear forces. Participants explore theoretical implications, personal experiences, and the importance of foundational knowledge in physics.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants suggest that while a fifth force is possible, there is currently no evidence supporting its existence.
  • One participant expresses uncertainty about gravity being a force and mentions ongoing efforts to develop a quantum theory of gravity.
  • Another participant proposes that the number of known forces may be limited compared to the number of known particles, hinting at the potential for discovering more forces.
  • A suggestion is made to consider the idea of a "dark force" related to the acceleration of the universe's expansion.
  • Some participants encourage the original poster (OP) to start forming hypotheses rather than engaging in wishful thinking, questioning if there is any unexplained evidence that could suggest a fifth force.
  • There is an emphasis on the importance of a strong mathematical foundation for anyone aspiring to study physics, with a recommendation to prioritize math education over early physics study.

Areas of Agreement / Disagreement

Participants express a mix of curiosity and skepticism regarding the existence of a fifth force. There is no consensus on whether such a force exists or what it might entail, and the discussion remains open-ended with multiple competing views.

Contextual Notes

Some statements reflect personal experiences and opinions rather than established scientific consensus. The discussion includes speculative ideas and emphasizes the need for further evidence and mathematical understanding.

Who May Find This Useful

This discussion may be of interest to students considering a career in physics, individuals curious about fundamental forces, and those exploring the intersection of theoretical physics and mathematics.

alkadh455
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Hi
I'm a 15 year old student that is very interested in physics and want to become a physicist (I wanted to become a physicist since I was 12). I've read a lot of popular physics books (examples like Michio Kaku, Brian Greene, Stephen Hawking, Newton, Carl Sagan,...) so do you guys think I should read certain books, or do certain things as for my age?
As for the main question for this: We all know the four fundamental forces of the universe (the electromagnetic force, gravitational force, strong and weak nuclear forces) but what do you think of a fifth force? Is it possible? tell me your thoughts...
Thanks a lot in advance
 
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Quick answer. It is possible. However there is no evidence that a fifth force exists.
 
alkadh455 said:
Hi
I'm a 15 year old student that is very interested in physics and want to become a physicist (I wanted to become a physicist since I was 12). I've read a lot of popular physics books (examples like Michio Kaku, Brian Greene, Stephen Hawking, Newton, Carl Sagan,...) so do you guys think I should read certain books, or do certain things as for my age?
Good for you, read what you want, whether 'The Universe in a Nutshell' or "Harry Potter 1,2,3" (my teen grandaughter has read every one of them). Myself, I've read Einstein's Relativity about 10 times, and read it every year to still try to understand it. Read, read, read, and have fun, fun, fun...
As for the main question for this: We all know the four fundamental forces of the universe (the electromagnetic force, gravitational force, strong and weak nuclear forces) but what do you think of a fifth force? Is it possible? tell me your thoughts...
Thanks a lot in advance
Well, we don't even know yet if gravity is a force, but scientists are trying hard to discover it through a quantum theory of gravity and Theory of Everything, etc. 5th force? I don't know, I think personally that all are one in different forms...the Grand Unification Theory it was called in my day...anyway, best of luck in all your endeavors, you're bound to succeed...
 
The number of known forces is certainly lagging behind the number of known particles.

Go for it.
 
Studiot said:
The number of known forces is certainly lagging behind the number of known particles.


Go for it.

Agree! Stay grounded in real scientific methods, but don't be afraid to speculate and imagine.

The ancient Greeks said there are 4 elements that exist and speculated that there was a fifth element in the heavens.

Why stop at five forces? Maybe there is an entire "periodic table" of forces waiting to be discovered. :smile:

It's hard for us to imagine that, but perhaps one day our physics will be perceived as those ancient primative attempts to make sense of the world.
 
Perhaps, if the OP wants to be a physicist, we should be encouraging him to start on his journey with a hypothesis, rather just wishful thinking.

alkadh, do you have any reason to suppose there is a fifth force? Is there some evidence unexplained that might be explained with the invocation of a fifth force?
 
How about the force that is accelerating the expansion of the universe? (Dark force?)

OF
 
A 15 yr old who wants to be a physicist.

You do not have the math background to even think about physics yet, so start working on your math skills. Take all the math you can at your high school, to me this is even more important then taking high school physics. Your goal should be to take calculus. Then retake it in college. You must have calculus before you can do any meaningful work in Physics.

To do well in Physics you need a solid mathmaical foundation, get started now.
 

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