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Tvash
climber
Seattle
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Sep 15, 2014 - 01:31pm PT
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I'm parroting Strassler's explanations, through analogy and visualizations (both his and my own), nothing more. I can appreciate what's on the dinner plate, even if I can't read the menu (because I'm not fluent in the math).
Thinking of particles and fields is not dissimilar to computer aided design - where systems and subsystems occupy different overlapping layers - each with its own design rules, interactions between components, and interactions with other layers. Simplifying such visualizations into 2 D elastic branes - like ball bearings rolling around stretched fabric, helps.
I'm a little confused with regards to the distinction between virtual particles (virtual gluons, for example), and other particles (gluons). I can see the distinction between photons and virtual photons - such as those produced by the passing of two electrons. Must virtual particles be short lived?
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jgill
Boulder climber
Colorado
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Sep 15, 2014 - 05:22pm PT
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J gill, did you ever do gymnastics with abie grossfeld ? (PP)
I suppose you could say I did in a vague sense: I was at the U of Chicago 1958-59 and assisted Coach Kreidler with the gymnastics team there. In 1959 the Pan-American Games were held at Navy Pier and the guys worked out at the U before the competitions began. I can remember holding the chalk for Art Shurlock while he practiced the pommel horse, and I think Abe was there as well. I may have talked with him about the still rings and perhaps spotted him. I did meet Muriel Davis (Grossfeld) and she competed in the Games; that was the first time I had ever seen a woman perform true strength moves - she did an impressive press to handstand on the beam during her routine. During that period I rarely saw a woman engage in rock climbing, and those I did observe were not strong, rather supple and poised with good balance. There was a ballerina who would accompany us to Devils Lake who had better balance than any of us.
Thanks for bringing back good memories!
;>)
Edit: Yes I did work out "with" Abie. Now I remember. On the rings. But he was eclipsed by Jay Ashmore, who did moves I had never seen before. Ashmore won the gold in rings - amazing guy, light as a feather as I recall. It's odd, but I can't find reference to Art actually competing in the games. Don't really know why. He certainly accompanied the team.
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MH2
climber
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Sep 15, 2014 - 05:47pm PT
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As many people have already said the intent of buddha was to get you to experience "no "I" not to conceptually understand it. (PSP also PP)
Thanks for that. An important distinction.
Or just another story. ; >
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PSP also PP
Trad climber
Berkeley
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Sep 15, 2014 - 07:57pm PT
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Thanks John; I forwarded your comments to abie. He has a great memory of meets etc. it will be interesting to see what he says about Ashmore. He became a very successful coach with his teams winning several national championships with no scholarships.
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jgill
Boulder climber
Colorado
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Sep 15, 2014 - 08:32pm PT
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It will be interesting to see what he says. It may turn out it was some other member of the team on the rings, but I think it was him. And I think Ashmore was the guy that so impressed me. I came up with the name by looking up that team, and I do think they called him Jay.
But who knows? Shurlock is the guy I remember best, but maybe he was there at another time . . . my memory's not so great these days.
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BLUEBLOCR
Social climber
joshua tree
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Sep 15, 2014 - 09:25pm PT
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I'm a little confused with regards to the distinction between virtual particles (virtual gluons, for example), and other particles (gluons).
maybe you don't have enough faith?
good question though, i'd like to hear that answer.
By "virtual" arent we meaning we're projecting the gluon being there?
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jgill
Boulder climber
Colorado
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Sep 15, 2014 - 09:38pm PT
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The word "virtual" can have a variety of meanings in science and math. For instance, here is a classroom note concerning images of a "virtual" definite integral: strangely its value is easily computed but the actual function being integrated - the integrand - frequently cannot be written down easily, if at all: Images of Virtual Integrals
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Ed Hartouni
Trad climber
Livermore, CA
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Sep 15, 2014 - 11:23pm PT
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The Higgs boson, while labeled as such, really isn't a boson by the normal definition at all.
no, it is a boson in the very definition of the term...
Fermions do not interact directly with each other
while fermions do couple to bosons, there is the "Pauli interaction" which prohibits them occupying the same state (the "Pauli Exclusion Principle"). This "force" which is not mediated by bosons (but is required by the definition of fermion) is what makes matter stable... why matter is "solid."
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BLUEBLOCR
Social climber
joshua tree
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Sep 16, 2014 - 08:35am PT
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^^^is that "force" the "resting mass" energy?
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High Fructose Corn Spirit
Gym climber
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Sep 16, 2014 - 08:44am PT
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Yes, tom, that is super ultra extraordinary. Yes, it is astonishing what those neurons ganging up together can do! Thanks for reminding us!
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Ed Hartouni
Trad climber
Livermore, CA
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Sep 16, 2014 - 07:35pm PT
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^^^is that "force" the "resting mass" energy?
no, it is the "force" that prevents the two fermions from occupying the same state...
neutrinos have very small masses, and they can't be in the same state (they are fermions)...
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jgill
Boulder climber
Colorado
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Sep 17, 2014 - 08:12pm PT
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PP, any word back from Abie?
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BLUEBLOCR
Social climber
joshua tree
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Sep 17, 2014 - 09:04pm PT
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Thanks again Ed!
Sorry to be burdensome! Man i got sooo many questions you could answer.
Do you have any favorite websites for this stuff?
If you ever want to come to JT and climb, me casa, sue casa!
It's been humid as of late, but by Oct it should be dreamy!
Cheers
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BLUEBLOCR
Social climber
joshua tree
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Sep 17, 2014 - 09:54pm PT
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^^^ i learned more from you than from that link.
Cool pics though.
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High Fructose Corn Spirit
Gym climber
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Sep 19, 2014 - 08:44am PT
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re: Waking Up
re: conscious experience, "self", meditation
So I gather Jan and I are the TWO who have read or studied (in my case, "studied" would probably be the more apropos term) Waking Up by Sam Harris. Anyone else?
Jan, we should discuss. You give me a couple reflections, etc, I'll give you a couple. I'll need a little more time though. Haven't read the last (mostly tack on, it seems) chapter - maybe this afternoon or Sunday.
I should say, I "studied" it mostly for a different reason compared to some probably. I studied it (a) for how SH presents, phrases and frames these leading, provoking, controversial topics for science communications effectiveness (amongst peers and public) and (b) for SH/current topic familiarity sake as much as anything else, since, except for the meditation part, I'm familiar with the topics having followed them, pursued them, lifelong.
I've been tracking it, the book, at amazon. Seems to be doing well. He's quite the communicator and he's got quite the following. I wonder what Carl Sagan would think of Sam Harris? I think conversations between the two could've been quite dynamic. Sagan would be about 79 today.
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jgill
Boulder climber
Colorado
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Sep 19, 2014 - 02:13pm PT
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The brain is part of the body. The mind is part of the transcendent world of wisdom and thought. Although the brain is the organ most associated with consciousness, the brain does not completely contain the mind. The mind’s intelligence permeates every human cell, extending into the environment and carrying with it the wisdom of the ancients (JL Link)
Couldn't make it past this point. Interest flamed out. Too much Woo.
;>\
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MH2
climber
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Sep 19, 2014 - 10:39pm PT
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Thank God my cells have the wisdom of the ancients.
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BLUEBLOCR
Social climber
joshua tree
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Sep 19, 2014 - 10:59pm PT
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Couldn't make it past this point. Interest flamed out. Too much Woo.
that was the part that was good! you must drive a Ford?
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