Why are we able to feel the textures of objects.

  • Context: High School 
  • Thread starter Thread starter ntovar73
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around the question of why we are able to feel the textures of objects, despite the notion that atoms are primarily composed of empty space. Participants explore this concept from various perspectives, including classical and quantum mechanics, as well as macroscopic characteristics of texture.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant notes that the repulsion between electrons in atoms prevents their hand from passing through a table, questioning how textures can be felt despite this gap.
  • Another explains the classical view through electrostatics, comparing electron repulsion to similar magnetic poles, and introduces the Pauli exclusion principle in quantum mechanics to describe atomic interactions.
  • A participant argues that texture is a macroscopic characteristic, suggesting it is not directly related to atomic or quantum properties.
  • Another participant emphasizes that the nature of surface irregularities and material properties contributes to the textures we perceive.
  • One participant expresses confusion about the relationship between atomic structure and the solidity of objects, reiterating that texture is a macroscopic concept.
  • A later reply introduces the idea that physical objects are spatially extended as fields, challenging the notion of "empty space."

Areas of Agreement / Disagreement

Participants express differing views on the relevance of atomic and quantum mechanics to the perception of texture, with some asserting that texture is primarily a macroscopic phenomenon. The discussion remains unresolved regarding the relationship between atomic structure and the sensation of texture.

Contextual Notes

Some claims depend on interpretations of atomic theory and the definitions of texture, which may not be universally agreed upon. The discussion includes unresolved questions about the implications of quantum mechanics on macroscopic experiences.

ntovar73
Messages
2
Reaction score
0
I know that since atoms are made up of mostly empty space, everything around us is made up of empty space. Also, (correct me if I'm wrong) I know that the reason why my hand doesn't go though a table when I place my hand on top is because the very small gap between my hand and the table thanks to the electrons around the atoms from the table top and my hand repelling each other. Why are we able to feel textures of objects if there is a gap between us and the object?
 
Physics news on Phys.org
You can understand it classically through electrostatics. The negative charge of the electrons in one atom repel the negative charge of the electrons in another. It's equivalent to trying to force two similar magnetic poles together.

In quantum terms, the Pauli exclusion principle forbids two fermions of the same quantum state from existing in the same physical position. You simply aren't allowed to pass one atoms through another, as this would involve electrons sharing a position.
 
Texture is a macro characteristic and has little or nothing to do with what you are talking about.
 
Whether the surface is made of atomic-scale physical balls or atomic scale "force fields" makes very little difference when the textures you are feeling are on the order of 10 million times larger.
 
What creates the textures that we feel?
 
ntovar73 said:
What creates the textures that we feel?

Surface irregularities and differences in material substance/strength/flexibility, etc.

Are you seriously saying you don't understand this?
 
I assumed the OP was asking why objects are solid, although atoms are dominantly empty space.

As phinds explains, texture is a totally macroscopic concept. It doesn't have anything to do with quantum mechanics or electrostatics.
 
ntovar73 said:
I know that since atoms are made up of mostly empty space, everything around us is made up of empty space.

Albert Einstein said:
Physical objects are not in space, but these objects are spatially extended (as fields). In this way the concept “empty space” loses its meaning.

Genius.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 10 ·
Replies
10
Views
7K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K
  • · Replies 13 ·
Replies
13
Views
5K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
High School The M paradox
  • · Replies 4 ·
Replies
4
Views
1K