John J. Bannan
08-06-07, 10:51 AM
Can two particles pass within each other like ghosts? Or, must they always bounce off each other.
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View Full Version : Can a particle go inside another particle? John J. Bannan 08-06-07, 10:51 AM Can two particles pass within each other like ghosts? Or, must they always bounce off each other. (Q) 08-06-07, 11:23 AM Fermions. "The Pauli exclusion principle is a quantum mechanical principle formulated by Wolfgang Pauli in 1925. This principle is significant, because it explains why matter occupies space exclusively for itself and does not allow other material objects to pass through it, while at the same time allowing light and radiation to pass. It states that no two identical fermions may occupy the same quantum state simultaneously." http://en.wikipedia.org/wiki/Pauli_exclusion_principle spidergoat 08-06-07, 11:25 AM I don't think they even touch. Cyperium 08-06-07, 06:11 PM Can two particles pass within each other like ghosts? Or, must they always bounce off each other.The particles themselves are transcendent, they can pass through eachother. The reason they bounce is because the force which hinders them to come too near eachother, while at the same time keeping them together, it's like a spring. Klippymitch 08-06-07, 07:12 PM I thought it was because light and the x-rays were so small they could fit through the space gaps in the mass. draqon 08-06-07, 07:12 PM Can two particles pass within each other like ghosts? Or, must they always bounce off each other. neutrinos and Earth. http://www.nasm.si.edu/exploretheuniverse/kiosks/whatsnew/whatsNewImages/neutrino-news-2-22-2-1.gif but than they do oscillate...is that bouncing? :bugeye: John J. Bannan 08-07-07, 09:26 AM A neutrino can go through the Earth, but that doesn't mean the neutrino actually passes through another particle. To the neutrino, the Earth is extremely porous. cosmictraveler 08-07-07, 01:03 PM Light particles can reflect off of other light particles. John J. Bannan 08-07-07, 01:12 PM Does reflect mean "go through"? draqon 08-07-07, 01:15 PM A neutrino can go through the Earth, but that doesn't mean the neutrino actually passes through another particle. To the neutrino, the Earth is extremely porous. no...but than what do you define as a particle to pass through? I mean you must first define the elementary particle everything is made of...in order for this ghost to pass through it. Otherwise all these particles will be ghosts in between. John J. Bannan 08-07-07, 01:21 PM Good point. Let's assume the smallest particle going through the smallest particle. draqon 08-07-07, 01:26 PM Good point. Let's assume the smallest particle going through the smallest particle. well what is the smallest particle? Because strings are not particles. John J. Bannan 08-07-07, 01:27 PM I don't know. Sorry. Just a thought experiment. draqon 08-07-07, 01:29 PM I don't know. Sorry. Just a thought experiment. I mean...I am even sure the particles of this ghost image...if such exists even goes around molecules and not through it. John J. Bannan 08-07-07, 01:31 PM Right. That's my point. Can it do through the proton or neutron? draqon 08-07-07, 01:33 PM Right. That's my point. Can it do through the proton or neutron? well how would you test that? I mean there is an antiparticle that goes through lepton for instance...but once it goes through it annihilates and energy is released. John J. Bannan 08-07-07, 01:34 PM Well, getting blown up colliding with a particle isn't going through the particle. draqon 08-07-07, 01:36 PM Well, getting blown up colliding with a particle isn't going through the particle. exactly. What I am saying is nothing can ever go through another particle unless it was an elementary particle of universe. cosmictraveler 08-07-07, 02:11 PM Does reflect mean "go through"? Well, most of the light particles go through the other light particles but some are reflected. John J. Bannan 08-07-07, 02:14 PM A photon can go through another photon? Any support for that statement? quadraphonics 08-07-07, 02:27 PM Well, most of the light particles go through the other light particles but some are reflected. No, they aren't. All of the photons pass right through one another. If they didn't, electromagnetic fields wouldn't be superposable, and Maxwell's Equations wouldn't be linear. You may be thinking of some kind of experiment wherein the photons interact with a medium, which then reflects some of the other photons, but it is certain that photons themselves do not interact with eachother. devire 08-08-07, 01:33 AM No, they aren't. All of the photons pass right through one another. If they didn't, electromagnetic fields wouldn't be superposable, and Maxwell's Equations wouldn't be linear. You may be thinking of some kind of experiment wherein the photons interact with a medium, which then reflects some of the other photons, but it is certain that photons themselves do not interact with eachother. i thought photons were their own anti-particle. don't high energy photons turn into matter when they collide sometimes? Pandaemoni 08-08-07, 08:47 AM I believe the answer is that fermions cannot pass through one another (because of the Pauli Exclusion Principle), but that bosons can. |