What is the Smallest Particle in the Universe Made Of?

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SUMMARY

The discussion centers on the concept of the smallest particle in the universe, with participants suggesting that electrons and quarks are point particles that exist within the confines of the Planck length. The Planck length represents a theoretical limit beyond which particles cannot be subdivided, as dictated by the uncertainty principle. The conversation also touches on the challenges of visualizing such particles due to their wave-like properties and the complexities involved in explaining their origins through advanced mathematical frameworks. String theory is proposed as a potential explanation for the smallest particle, suggesting it may ultimately be a point.

PREREQUISITES
  • Understanding of quantum mechanics concepts, particularly point particles
  • Familiarity with the Planck length and its significance in physics
  • Basic knowledge of the uncertainty principle
  • Awareness of string theory and its implications in particle physics
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  • Research the implications of the Planck length in quantum physics
  • Study the properties and behaviors of electrons and quarks
  • Explore the uncertainty principle and its effects on particle behavior
  • Investigate string theory and its potential to unify particle physics
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Physicists, students of quantum mechanics, and anyone interested in the fundamental nature of particles and the universe.

Deepak Kapur
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Any guesses about the smallest particle in this universe that would be discovered in the time to come.

What would it be made of in turn?

Can there be an end to this?

If there is an end, how can the origin of the particle, which is composed of no other entity (be it matter, wave, etc.) be explained?
 
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Deepak Kapur said:
Any guesses about the smallest particle in this universe that would be discovered in the time to come.

What would it be made of in turn?

Can there be an end to this?

If there is an end, how can the origin of the particle, which is composed of no other entity (be it matter, wave, etc.) be explained?

Well, electrons and quarks are point particles. They don't really exist as in 'have a set size', the do however need to be kept within the Plank length. That's so unimaginably small though and I don't even think we have any devices which can see that small. I may of course be mistaken.
I'm not even sure if physicist can imagine a quark. Imagining a electron would be difficult for the average person. You can try to think of a electron, while acting as a particle, just assume it's the size of a proton but it's close to 2000x lighter. However it has wave-like properties so it's quite difficult.

I do think that there is an end to this in theory. Can't get any smaller than a Plank length by uncertainty principal, and we're already there. How can they be explained? With very complicated maths and scientific concepts.

I'm no physicist mind you so if any of the scientists on here want to slap me on my head for what I wrote go right ahead :-p
 
If string theory is ever confirmed, I'd say the smallest will be a point !
 

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