tag:blogger.com,1999:blog-22973357.post1498793837938617152..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: Max Planck at 150Sabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger19125tag:blogger.com,1999:blog-22973357.post-11919750644514060582008-04-30T11:56:00.000-04:002008-04-30T11:56:00.000-04:00Hi Phil and Nigel,I would like to add something. I...Hi Phil and Nigel,<BR/><BR/>I would like to add something. <BR/><BR/>I have only superficial knowledge in history of science and may be I am wrong. However, our discussion triggered my curiosity and I reread A.Einstein “Uber die spezielle und die allgemeine Relativitatstheorie, gemeinverstandlich.”<BR/><BR/>Roughly, I would say we meet three different investigation strategies presented by three Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-2544543310500522392008-04-27T13:33:00.000-04:002008-04-27T13:33:00.000-04:00Hi nigel,I apologize but I didn’t understand your ...Hi nigel,<BR/><BR/>I apologize but I didn’t understand your comment. Perhaps, we have different background. My statements about content and asymptotic behavior of M.Planck solution are based mainly on:<BR/>A.Einstein, Phys.Zeit. 10,185,(1909).<BR/>L.Mandel and E.Wolf “Optical coherence and quantum optics”.<BR/><BR/>Regards, Dany.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-198654326695781802008-04-27T13:25:00.000-04:002008-04-27T13:25:00.000-04:00Hi Phil,In my comment I referred to the “quantum j...Hi Phil,<BR/><BR/>In my comment I referred to the “quantum jumps” only. If we remain confined within the box of our discussion (not drifting off topics) then the situation is as follows (to avoid any misinterpretation, I consider M.Gell-Mann the father of Elementary Particles Physics):<BR/><BR/>1)Inside the box; I would recommend to the Gell-Mann’s girl to study first what are the axiomatic Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-48323311278719821392008-04-27T05:10:00.000-04:002008-04-27T05:10:00.000-04:00Hi Dany,Cathode rays had been identified as electr...Hi Dany,<BR/><BR/>Cathode rays had been identified as electrons by J.J. Thomson in 1897, and since you can get cathode rays (electrons) emitted from metals at sufficient temperature, it was clear that electrons were a component of the atom when Planck was theorising.<BR/><BR/>As you say, he had the empirical black body radiation spectrum.<BR/><BR/>But he also had Maxwell's equations and the very nigehttps://www.blogger.com/profile/03402194253543690982noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-76576418939058655332008-04-26T18:45:00.000-04:002008-04-26T18:45:00.000-04:00Hi Dany,“That is physics all about; all one should...Hi Dany,<BR/><BR/>“That is physics all about; all one should do is to find perfect fit to the empirical facts.”<BR/><BR/>Yes that is how it happens sometimes as it did with Plank. However, I wouldn’t say that the likes of Maxwell/Faraday or Einstein did what they did not to simply clean up a few loose ends; more they realized the ends were ragged and so things required a whole new approach. A Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87233418140097753832008-04-26T12:14:00.000-04:002008-04-26T12:14:00.000-04:00Phil Warnell:” I find it sort of ironic that a sci...Phil Warnell:” I find it sort of ironic that a scientist of such a conventional nature and conservative views, while attempting to only clean up a few loose ends instead opened a Pandora’s box.”<BR/><BR/>That is physics all about; all one should do is to find perfect fit to the empirical facts. Wait to the next Pandora’s Box soon.<BR/><BR/>"If we have to go on with these damned quantum jumps, Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-78540064014688090952008-04-25T05:35:00.000-04:002008-04-25T05:35:00.000-04:00Hi Stefan,I find it sort of ironic that a scientis...Hi Stefan,<BR/><BR/>I find it sort of ironic that a scientist of such a conventional nature and conservative views, while attempting to only clean up a few loose ends instead opened a Pandora’s box that still plaques us today. In reading the literature on Plank there was a time he had wished he’d never started in the first place. Schrodinger, who would himself be later daunted in part by Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-29881129571522221672008-04-25T03:33:00.000-04:002008-04-25T03:33:00.000-04:00Hi nige,nige:”I don't know what thinking inside a ...Hi nige,<BR/><BR/>nige:”I don't know what thinking inside a box is, so this popular expression seems to be meaningless.”<BR/><BR/>Each one of us uses his own metaphors and images. It doesn’t a matter if that help to solve a problem.<BR/><BR/>I would say that M.Planck was thinking “inside a box”. The problem was with box and the experimental curve didn’t allow any unconstraint imagination: just Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15632990964299947922008-04-24T19:35:00.000-04:002008-04-24T19:35:00.000-04:00Hi Dany,Thanks for referring to http://video.googl...Hi Dany,<BR/><BR/>Thanks for referring to <A HREF="http://video.google.com/videoplay?docid=1181750045682633998" REL="nofollow">http://video.google.com/videoplay?docid=1181750045682633998</A> which I hadn't seen before.<BR/><BR/>It's interesting that in the questions and answers session (at 40-47 minutes) Gell-Mann is asked about the problem that string theory is excessively "creative" (unobservednigehttps://www.blogger.com/profile/03402194253543690982noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28514207007561268232008-04-24T17:35:00.000-04:002008-04-24T17:35:00.000-04:00Dear Bee,no, I've not forgotten the Planck scale p...Dear Bee,<BR/><BR/>no, I've not forgotten the <A HREF="http://backreaction.blogspot.com/2007/07/planck-scale.html" REL="nofollow">Planck scale post</A> - that's where I knew the story from in the first place :-) Yeah, but sorry, I had forgotten to add a link to the post...<BR/><BR/><BR/><BR/>Hi Andreas,<BR/><BR/>thanks for pointing out this Marx Planck story! It sounds like kind of joke - but stefanhttps://www.blogger.com/profile/09495628046446378453noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-7032683092523612182008-04-24T13:04:00.000-04:002008-04-24T13:04:00.000-04:00Hi nige,I don’t think that the age is a meaningful...Hi nige,<BR/><BR/>I don’t think that the age is a meaningful criterion. There is video on that topic:” On Getting Creative Ideas” delivered at March 14, 2007 by someone who apparently have an idea what he is talking about.<BR/><BR/>Regards, Dany.<BR/><BR/>P.S. If I remember correctly, M.Born originally missed that point.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-8417961600129433052008-04-24T09:53:00.000-04:002008-04-24T09:53:00.000-04:00It's amazing that Max Planck was 42 when he came u...It's amazing that Max Planck was 42 when he came up with the quantum theory of blackbody radiation. Schroedinger was 39 when he came up with the wave equation of quantum mechanics, and Born was 44 when he published the fact that the probability of finding the electron in a given small volume was proportional to square of the wavefunction at that point.<BR/><BR/>But many of the innovators of nigehttps://www.blogger.com/profile/03402194253543690982noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-48943869016138995262008-04-24T09:03:00.001-04:002008-04-24T09:03:00.001-04:00”I'm a God-in-training, and I want to create a uni...”I'm a God-in-training, and I want to create a universe where quantum effects on the scale of Avogadro's number of particles are much more apparent to its sentient beings than in your universe. How would I do that?”<BR/><BR/>Sit down inside LHC during it operation.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-38426281287795305632008-04-24T09:03:00.000-04:002008-04-24T09:03:00.000-04:00Dear God-in-training,If you fiddle with the laws o...Dear God-in-training,<BR/><BR/>If you fiddle with the laws of nature, chances are you'll remove the 'sentient beings'. I've 'created' dozens of universes, unfortunately I had to notice they don't describe the one I seem to live in. You don't have to do anything except assuming that the state of cats is in the Hilbert space and has the eigenvalues 'dead' and 'alive'. Don't expect your cat to be Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77713154467586738922008-04-24T08:15:00.000-04:002008-04-24T08:15:00.000-04:00PS: the most apparent quantum effect of course is ...PS: the most apparent quantum effect of course is the extensive nature of matter that arises from fermions. I mean something beyond that, where cats indeed are in superpositions of dead and alive.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-73642902496931561362008-04-24T08:12:00.001-04:002008-04-24T08:12:00.001-04:00Dear Stefan and Bee,I'm a God-in-training, and I w...Dear Stefan and Bee,<BR/><BR/>I'm a God-in-training, and I want to create a universe where quantum effects on the scale of Avogadro's number of particles are much more apparent to its sentient beings than in your universe. How would I do that?<BR/><BR/>(Hey, I can create universes, but that doesn't mean I have a mastery over physics. You're physics experts; can you create universes?)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-54741195559717178242008-04-24T08:12:00.000-04:002008-04-24T08:12:00.000-04:00For a rough English translation see here.For a rough English translation see <A HREF="http://translate.google.com/translate?u=http%3A%2F%2Fwww.spiegel.de%2Fwissenschaft%2Fmensch%2F0%2C1518%2C549404%2C00.html&langpair=de%7Cen&hl=en&ie=UTF8" REL="nofollow">here</A>.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-16984664749219542008-04-24T08:07:00.000-04:002008-04-24T08:07:00.000-04:00Spiegel reports here (in German) that there is so...Spiegel reports <A HREF="http://www.spiegel.de/wissenschaft/mensch/0,1518,549404,00.html" REL="nofollow"> here</A> (in German) that there is some evidence that Max Planck was born Marx Planck, Marx being short for Marcus. Probably changed his name for the obvious reasons in later years.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-66097191157651382872008-04-23T20:03:00.000-04:002008-04-23T20:03:00.000-04:00Dear Stefan,Thanks for this birthday post! Forgot ...Dear Stefan,<BR/><BR/>Thanks for this birthday post! Forgot my post on <A HREF="http://backreaction.blogspot.com/2007/07/planck-scale.html" REL="nofollow">The Planck Scale?</A>. Btw, the quotation from Planck's paper with the extraterrestrial civilizations came up recently also in <A HREF="http://backreaction.blogspot.com/2007/07/planck-scale.html" REL="nofollow">Polchinski's colloq</A> (right inSabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.com