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On February 12 2010 01:31 micronesia wrote:Show nested quote +On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. whenever you talk about nuclear physics/chemistry in general, radiation always refers to the products of radioactive decay (other than the big atoms that decay themselves)... isn't that standard?
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This is a cruel joke...
But informative and good read.
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On February 12 2010 01:31 micronesia wrote:Show nested quote +On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. ...
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I wish I was 18 again, I would totally have double majored in physics.
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United States24342 Posts
On February 12 2010 01:41 SpiritoftheTunA wrote:Show nested quote +On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. whenever you talk about nuclear physics/chemistry in general, radiation always refers to the products of radioactive decay (other than the big atoms that decay themselves)... isn't that standard? Perhaps, but isn't it clear if I say 'radiation as opposed to beta particles' that I meant electromagnetic radiation? I almost never talk about nuclear physics/chem and it's my weakest area actually :p
On February 12 2010 02:00 ArmChairCritic wrote:Show nested quote +On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. ... Quit a fitting username you have lol
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On February 12 2010 02:04 micronesia wrote:Show nested quote +On February 12 2010 01:41 SpiritoftheTunA wrote:On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. whenever you talk about nuclear physics/chemistry in general, radiation always refers to the products of radioactive decay (other than the big atoms that decay themselves)... isn't that standard? Perhaps, but isn't it clear if I say 'radiation as opposed to beta particles' that I meant electromagnetic radiation? I almost never talk about nuclear physics/chem and it's my weakest area actually :p Show nested quote +On February 12 2010 02:00 ArmChairCritic wrote:On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. ... Quit a fitting username you have lol I just thougth it was wrong to say "ionizing radiation or electromagnetic radiation" when ionizing radiation can be electromagnetic radiation.
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On February 12 2010 02:34 ArmChairCritic wrote:Show nested quote +On February 12 2010 02:04 micronesia wrote:On February 12 2010 01:41 SpiritoftheTunA wrote:On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. whenever you talk about nuclear physics/chemistry in general, radiation always refers to the products of radioactive decay (other than the big atoms that decay themselves)... isn't that standard? Perhaps, but isn't it clear if I say 'radiation as opposed to beta particles' that I meant electromagnetic radiation? I almost never talk about nuclear physics/chem and it's my weakest area actually :p On February 12 2010 02:00 ArmChairCritic wrote:On February 12 2010 01:31 micronesia wrote:On February 12 2010 01:30 crate wrote: I was mainly wondering why you are saying beta particles are not radiation, since mostly every other source says the opposite. Yeah I should be clear about whether I mean ionizing radiation or electromagnetic radiation. ... Quit a fitting username you have lol I just thougth it was wrong to say "ionizing radiation or electromagnetic radiation" when ionizing radiation can be electromagnetic radiation. It's not really wrong since there is a distinction... even if one includes the other. I ate an orange earlier... or some other fruit.
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Was the electron comment really necessary? Far from everyone knows what an electron is.
Pretty arrogant coming from someone writing a terrible explanation of what a positron is. You make it sound like a proton. Just sayin'.
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On February 11 2010 23:35 ]343[ wrote: hmm I have a question that I was too lazy to ask in physics class yesterday
so consider something like
(e-) + p -> n + ν (that's a nu I swear!)
vs.
p -> n + (e+) + ν
so the "net effect" of this reaction is the same
but can we call it the "same reaction"? because emitting a positron, if we just randomly decided to add an e-/e+ pair production, would be equivalent to absorbing an electron... plus we can think of absorbing an electron as "emitting an electron through negative time"?
I hope I'm coherent here...
"emitting an electron through negative time" It is very convenient way of thinking . As far as i know electron capture and positron decay are 2 different reactions. Of course it is impossible to detect positron because it is annihilating immediately. But it is possible to detect the pair of photons appearing after annihilation. And it is very usefull tool in medicine. Obviously such photons will not be emitting in the process of electron capture.
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All I read here was "Guide to Beta" and thought its for SC II beta lol All tho Im not so disappointed in this stuff
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On February 12 2010 02:56 Freezard wrote: Was the electron comment really necessary? Far from everyone knows what an electron is. Who doesn't know what it is besides people who are in middle school or who are in third world countries? Obviously not nobody, but very few of those people are in the tl demographic.
Pretty arrogant coming from someone writing a terrible explanation of what a positron is. You make it sound like a proton. Just sayin'. I didn't make it sound like a proton. What additional distinctions do you think should be made? Or do you generally make a habit of criticizing something without providing any evidence that you can do it better?
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FUUU! That's one less piece of knowledge to throw at people..
Edit: By the way, aren't you supposed to know this after 10 years of school (Which is obligatoric in Denmark)?
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As you didnt answer my question -_- Can electrons be treated as a "field" around an atom; and photons as a moving "field" around a whole atom? I trief few physics boards and noone ever had enough knowledge to tell me what exactly happens if "1 radiation" gets emited (or 1 photon for that matter). Does this radiation move in all directions (like a "force-field"), or just in 1 direction (like a "brick" [particle]).
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I'm glad I came here to see an angry Cloud post
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"Throughout this reaction, the total energy of the particles is conserved even though the mass changes." E=mc^2
how do you have E be constant if m changes????? are you saying C changed under that situation?? or are you saying E=mc^2 is BS?????
Explain!!!!
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On February 11 2010 23:17 micronesia wrote: if you don't know what an electron is then I hope you are in middle school or a third world country or something
Too bad this comment isn't as insightful as the rest of your blog
One additional interesting thing about Beta particles: not only can they damage biological tissue, but, if they strike DNA, they can actually cause a spontaneous mutation! Even if that does not occur, a severe cancer can result.
How exactly do they cause severe cancer while not causing any mutations?
Also, on a side note, but I'm just nitpicking: The beta particles don't actually cause the mutations. They very slightly alter the DNAs structure (by creating thymine dimers, or perhaps pyrimidin dimers in general) but that's not exactly a mutation (it's not a change of the nucleotid sequence). The mutation results from the reparation mechanisms that mismatch nucleotids while exercing their function.
Good blog though, it made me look up beta decay since I couldn't remember the details
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On February 12 2010 04:27 rei wrote: "Throughout this reaction, the total energy of the particles is conserved even though the mass changes." E=mc^2
how do you have E be constant if m changes????? are you saying C changed under that situation?? or are you saying E=mc^2 is BS?????
Explain!!!!
c is the constant of the speed of light it does not change(except in maybe really rare situations that I probably have no idea about). The mass is not conserved, however the energy is conserved, E=mc^2 applies to the left over mass or split particles, and the rest of the energy is liberated in the decay process whether through electromagnetic waves or particles that can act as waves or through kinetic energy. I am not 100% sure of this, a guy who knows what he is talking needs to check this though. Conservation of energy always occurs, energy just changes forms thats all.
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United States24342 Posts
On February 12 2010 04:27 rei wrote: "Throughout this reaction, the total energy of the particles is conserved even though the mass changes." E=mc^2
how do you have E be constant if m changes????? are you saying C changed under that situation?? or are you saying E=mc^2 is BS?????
Explain!!!! If some of the mass is converted into energy or vice versa, then the total mass changes whereas the total energy stays the same.
On February 12 2010 04:38 Hammy wrote:Show nested quote +On February 11 2010 23:17 micronesia wrote: if you don't know what an electron is then I hope you are in middle school or a third world country or something
Too bad this comment isn't as insightful as the rest of your blog I'm still waiting for someone to substantiate this criticism as I'm curious...
Show nested quote +One additional interesting thing about Beta particles: not only can they damage biological tissue, but, if they strike DNA, they can actually cause a spontaneous mutation! Even if that does not occur, a severe cancer can result. How exactly do they cause severe cancer while not causing any mutations? Also, on a side note, but I'm just nitpicking: The beta particles don't actually cause the mutations. They very slightly alter the DNAs structure (by creating thymine dimers, or perhaps pyrimidin dimers in general) but that's not exactly a mutation (it's not a change of the nucleotid sequence). The mutation results from the reparation mechanisms that mismatch nucleotids while exercing their function. Good blog though, it made me look up beta decay since I couldn't remember the details I have to admit I don't know much about the mechanism behind the biological changes, but I do recognize that there is not a direct link between the beta particles and the mutation :p
For the scope of this guide I think what I said about that is ok.
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Come on when you use the word "beta" in the title of a thread on a Starcraft website what do you expect?
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On February 12 2010 01:48 larjarse wrote: This is a cruel joke...
But informative and good read.
lol good one micro
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