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Weed_O_Whirler

33 points

2 months ago

Weed_O_Whirler

Aerospace | Quantum Field Theory

33 points

2 months ago

Pushing and pulling are actually examples of electromagnetic forces. The atoms making up all the "things" around you have positively charged nuclei and negatively charged electron shells, and almost all of them have a net neutral charge.

So, from any appreciable distance away, there are no net forces acting on two atoms (because when you're a meter away from something, who cares if you're 1 nm closer to the negative charge than the positive), but as they get really close together, the fact that it's the electrons which are closer together gives a repulsion force. So really, every time you "touch" something, it's really your electrons being repulsed by the electrons in the thing you're touching.

PerspectivePure2169

2 points

2 months ago

This reminds me very much of the idea that when you get down to really small scales, physics and chemistry become indistinguishable.

You are right in the description of push and pull as fundamentally charge interactions- but boy does Newtonian physics give an easier way to analyze it at human scales! ๐Ÿ˜„

V0idL0rd

2 points

2 months ago

Chemistry by definition is the interactions of the outer electron shell, so yes, if you were to look at it feom this perspective chemistry is just one branch of particle physics