To be technical on the mass of a proton. That's just what it's assumed to be, we haven't been able to check it experimentally yet.QuoteA new limit on photon mass, less than 10-51 grams or 7 x 10-19 electron volts, has been established by an experiment in which light is aimed at a sensitive torsion balance; if light had mass, the rotating balance would suffer an additional tiny torque. This represents a 20-fold improvement over previous limits on photon mass.Photon mass is expected to be zero by most physicists, but this is an assumption which must be checked experimentally. A nonzero mass would make trouble for special relativity, Maxwell's equations, and for Coulomb's inverse-square law for electrical attraction. SourceSo it's most likely zero, but we haven't been able to prove that yet.
A new limit on photon mass, less than 10-51 grams or 7 x 10-19 electron volts, has been established by an experiment in which light is aimed at a sensitive torsion balance; if light had mass, the rotating balance would suffer an additional tiny torque. This represents a 20-fold improvement over previous limits on photon mass.Photon mass is expected to be zero by most physicists, but this is an assumption which must be checked experimentally. A nonzero mass would make trouble for special relativity, Maxwell's equations, and for Coulomb's inverse-square law for electrical attraction.
Quote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later.
Quote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.
The difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.
Quote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later.His analogy sucked but light does carry momentum.
Quote from: Gulliver on September 21, 2007, 01:24:55 PMQuote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later."Apart from energy a photon also carries momentum and has a polarization."Reference: Wikipedia.i'm good. I tried to look up the formula for momentum and came upon the formula for massless momentum. So i believe you lol.
Quote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later."Apart from energy a photon also carries momentum and has a polarization."Reference: Wikipedia.
Quote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later.Umm, no. They do. Sorry, masters in physics wins over armchair physicist.
We're all jealous of Raist.
Quote from: emailking on September 21, 2007, 04:11:00 PMQuote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later.Umm, no. They do. Sorry, masters in physics wins over armchair physicist.I'm sorry i don't have an armchair.
Quote from: Raist on September 21, 2007, 09:56:18 PMQuote from: emailking on September 21, 2007, 04:11:00 PMQuote from: Raist on September 21, 2007, 12:57:12 PMQuote from: emailking on September 21, 2007, 12:51:25 PMQuote from: Raist on September 21, 2007, 12:50:19 PMThe difference being that light lacks mass.So comparing a photon to a rock is a bit of a stretch.They have no mass but they do carry mommentum. It's jsut an analogy.No. not right at all. Try again later.Umm, no. They do. Sorry, masters in physics wins over armchair physicist.I'm sorry i don't have an armchair.Then you might consider a diet -- or wider or sturdier (or both) armchairs.
Raist all I'm saying is you'd better know what you're talking about if you're going to lecture.
Man, you RE'ers are funny. You've been arguing with each other for over a page because you all know you cannot refute my proof.
limedrops rule. I responded. Now respond to my response.
Quote from: emailking on September 21, 2007, 10:17:57 PMRaist all I'm saying is you'd better know what you're talking about if you're going to lecture.I do as i will. If i'm wrong, oh well it's the internet. Physics isn't really my department anyways. Chemistry is my real passion. I love things that go boom. (not burn fast, go boom).
Sorry Raist I missed your response before.Quote from: Raist on September 22, 2007, 01:54:24 PMQuote from: emailking on September 21, 2007, 10:17:57 PMRaist all I'm saying is you'd better know what you're talking about if you're going to lecture.I do as i will. If i'm wrong, oh well it's the internet. Physics isn't really my department anyways. Chemistry is my real passion. I love things that go boom. (not burn fast, go boom).Yes you can do as you will. But when you try to tell a physicist that he's wrong about a physics question when in fact you are just ignorant it does not make you look good at all.
Quote from: emailking on September 23, 2007, 04:54:02 PMSorry Raist I missed your response before.Quote from: Raist on September 22, 2007, 01:54:24 PMQuote from: emailking on September 21, 2007, 10:17:57 PMRaist all I'm saying is you'd better know what you're talking about if you're going to lecture.I do as i will. If i'm wrong, oh well it's the internet. Physics isn't really my department anyways. Chemistry is my real passion. I love things that go boom. (not burn fast, go boom).Yes you can do as you will. But when you try to tell a physicist that he's wrong about a physics question when in fact you are just ignorant it does not make you look good at all. Lol i'll live with it. I'm told i'm wrong about biology by people who think evolution will happen just because it looks like it should all the time. I live with it and the only thing i think is they don't know biology well. i don't judge people as much as some do i guess.
It's true. I am Moobs
if we cross pollinated our baby would be bald and pretty