Radiation energy of a moving particle

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The discussion centers on the concept of mass-energy in the context of relativity, particularly addressing why massive objects cannot reach the speed of light while massless particles can. Participants clarify that the gain in mass as an object accelerates comes from the work done to accelerate it, linking kinetic energy to mass-energy conservation. The conversation critiques the use of "relativistic mass," emphasizing the importance of understanding mass as an invariant quantity. Additionally, it touches on the fundamental laws of physics that dictate these behaviors, with some participants expressing frustration over perceived misunderstandings and the complexity of the topic. Ultimately, the discussion highlights the intricate relationship between mass, energy, and the speed of light in relativistic physics.
  • #61


Originally posted by Jwprox
If only we could explain the whole of physics using monkeys and bananas.

You can quote me on that.
 
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  • #62
Originally posted by raptor5618
I read this thread with a great deal of amazement. To think that someone would ask a question, get an answer and then say that's not it stupid is just a bad joke. Ok maybe the answer did not seem right but they did not counter it with reasons for feeling they were wrong and in some cases just saying why which is very much like a child. A discussion does not include ridicule or personal insults. To ask for help and receive it only to personally put down the person trying to help shows that this person is totally without class.

I have to agree with you. I read this article with complete shock. There were so many people in this article who tried to help answer Tenzin's question. He, however, rejected the help because it was not in the right format. Others tried and were shot down as well, even though they meant good intentions. These people were taking time out of their day to try to explain concepts, and they should at least deserve at least some respect. When I don't understand something, I accept all the help I can get, whether it be mathematical or philisophical-ish concepts. Its kind of a shame when these discussions turn into flame wars.
 
  • #63
Tenzin on renormalization:

Originally posted by tenzin

Don't worry your level of math does not impress me. I know more than I have let on. I learned QED renormalization in about 15 minutes of reading a book I just picked up off the shelf.

Tenzin on why the speed of light is invariant:

Originally posted by tenzin
Lethe had nothing to do with my thinking. I have been considering this for over 10 years.

i especially liked how it takes him 15 minutes to learn renormalization (which is a pretty hard subject!), but after 10 years of thought, he still can't grasp special relativity (which is not very hard!)

but yeah, i agree with your sentiments. i was quite shocked when i spent time on what i thought were informative and helpful comments, only to be insulted and accused of ignorance.

just imagine, this guy is a teacher!
 
  • #64
Originally posted by tenzin

The electron is a particle. It is not a wave because something can not be both.

Well I was diffracting some electrons the other day and when I turned up the accelerating Potential , the diffraction increased... How do particles do that then?

An electron may perhaps not 'be both' but that doesn't mean it must be a particle either!
 
  • #65
I found the following particularly amusing, in re: learning renormalization:

Any person who inderstands the probablity of coin flips can understand QED.

Apparently he didn't catch the fact that renormalization really has nothing to do with probability, showing a bit of confusion with the notion of probabilitic dynamics (basic quantum mechanics) and convergent Feynman integrals...

Also, anyone who claims to be an excellent teacher -- and in the same breath calls their audience stupid -- is really demonstrating their true colors.
 

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