4 ms·
It's really incredible what our everyday mundane world is made of... especially taking into account the quantum realm.
by hurrdurr2 7y ago
It's really incredible what our everyday mundane world is made of... especially taking into account the quantum realm.
- baggy_trough 7y agoYes. For example it’s mind boggling that most of your mass is due to kinetic energy of quarks zooming around each other at relativistic speeds pulled by the strong force.
- paulrouget 7y agoWow. Where can I read more about this?
- dvfjsdhgfv 7y agohttps://www.amazon.com/Mass-understand-matter-quantum-fields/dp/0198759711 https://www.amazon.com/Mass-understand-matter-quantum-fields... or you can hear the author explain the key bits here: https://www.youtube.com/watch?v=HfHjzomqbZc https://www.youtube.com/watch?v=HfHjzomqbZc
- ReaLNero 7y agoThis seems really interesting. Could you explain more about the strong force and this "kinetic mass" effect? I thought quarks had mass, and that's where my mass comes from?
- chaotic_clanger 7y agothe quarks have it own (rest) mass, but quite tiny compared to when you include binding energy (9 Mev vs 900 Mev)
- davrosthedalek 7y agoRest-mass being a somewhat difficult concept if your particle only "exists" in bound systems, i.e. is confined. But yeah, forget the Higgs, almost all the mass you see around you is generated dynamically by non-perturbative QCD. Edit: More explanation: If you take the quark masses as unbound rest mass, it's not clear why the proton is bound -- it would have higher energy (=mass) than the unbound constituents. This is different from atoms, as a hydrogen atom has slightly less mass than the sum of a free proton and free electron (13.6eV in the ground state).
- baggy_trough 7y agoI first read about it here. https://profmattstrassler.com/articles-and-posts/particle-physics-basics/the-structure-of-matter/protons-and-neutrons/ https://profmattstrassler.com/articles-and-posts/particle-ph...
- p1esk 7y agoWait, I thought my mass is due to Higgs boson, no?
- teraflop 7y agoNot really! The Higgs mechanism explains why elementary particles, such as quarks and electrons, have non-zero mass. Almost all of the mass of ordinary matter is composed of nucleons (protons and neutrons), which are made of 3 quarks each. But the quarks' masses only account for about 1% of a nucleon's mass. The quarks are bound together incredibly tightly by the strong nuclear force (mediated by gluons), and it's the mass-energy associated with this gluon field that is responsible for the remaining mass. https://en.wikipedia.org/wiki/Proton#Quarks_and_the_mass_of_a_proton https://en.wikipedia.org/wiki/Proton#Quarks_and_the_mass_of_...
- davrosthedalek 7y agoThe quark mass is somewhat misleading: It's not the mass of a "free" quark, that doesn't exist, because of confinement. The incredible strong nuclear force actually /lowers/ the mass of the proton compared to the sum of the unbound constituents, from "infinity" to some finite value. Strange, I know, but similar to what happens with the hydrogen atom: In the ground state, it's 13.6 eV less massive than the sum of the mass of proton and electron.
- dr_dshiv 7y agoOmg, I love this idea -- it's comprehensible. Is there a source for this?
- kanzenryu2 7y agoHere's one... https://www.fourmilab.ch/documents/golden_glow/ https://www.fourmilab.ch/documents/golden_glow/
- pdkl95 7y agohttps://www.youtube.com/playlist?list=PLsPUh22kYmNCLrXgf8e6nC_xEzxdx4nmY https://www.youtube.com/playlist?list=PLsPUh22kYmNCLrXgf8e6n...
- arethuza 7y ago"The Dreams that Stuff is Made Of"