Register to reply 
...the observed masses of the particles.. R. Feynmanby Buckeye
Tags: feynman 
Share this thread: 
#1
May1408, 05:34 PM

P: 162

Feynman wrote: "Throughout this entire story there remains one especially unsatisfactory features: the observed masses of the particles, m. There is no theory that adequately explains these numbers. We use these numbers in all our theories, but we do not understand them  what they are, or where they come from. I believe that from a fundamental point of view, this is a very interesting and serious problem." end of quotation
Is this statement by Feynman from 1985 still true? 


#2
May1408, 05:42 PM

P: 2,828

The masses of fundamental particles, your mass and the ones of familiar objects around you, or the electromagnetically invisible masses that show up gravitationnally at astronomical scales ? At different levels, all those different masses are not satisfactorilly explained. But you need to focus the discussion, otherwise if you want to talk about all of them, you should open separate discussions, since those are independent problems. 


#3
May1408, 05:49 PM

P: 162

The quote is on p152 from "QED, The Strange Theory of Light and Matter". 


#4
May1408, 06:02 PM

P: 2,828

...the observed masses of the particles.. R. Feynman



#5
May1408, 06:09 PM

P: 162

I have not referred to any particular particles. I'm simply asking if Feynman's statement is true or not? 


#6
May1408, 06:14 PM

P: 2,828

The Higgs mechanism allows you to have massive fundamental particles in the standard model. 


#7
May1408, 06:22 PM

P: 162

If we have no clue where the mass comes from, then how do we know it is not simply "mechanical" mass instead of "electromagnetic" mass or "inertial" mass? 


#8
May1408, 06:27 PM

P: 2,828

Should I continue feeding the troll ? 


#9
May1408, 06:40 PM

P: 162




#10
May1408, 06:47 PM

P: 2,828

The problem with any kind of mechanical model of fundamental particles is that is has to be quantum. That severely reduces intuition. 


#11
May1408, 06:55 PM

P: 162




#12
May1408, 07:11 PM

P: 2,828




#13
May1408, 07:17 PM

P: 162




#14
May1408, 07:20 PM

P: 2,828




#15
May1408, 07:30 PM

P: 162




#16
May1408, 07:32 PM

P: 2,828




#17
May1408, 07:35 PM

P: 162




Register to reply 
Related Discussions  
Are the Feynman Lectures on Physics books good?  Science & Math Textbooks  53  
Feynman integration trick  textbooks?  Calculus  13  
Have anyone read Surely You're Joking Mr. Feynman ?  Science & Math Textbooks  22 