tag:blogger.com,1999:blog-22973357.post3351611644719600052..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: The Hydrogen Spectrum and its Fine StructureSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-22973357.post-51064105780668330222007-12-09T19:45:00.000-05:002007-12-09T19:45:00.000-05:00Hydrogen spectroscopy had immediate applications i...Hydrogen spectroscopy had immediate applications in stars, then and now (stars being made mostly of hydrogen) so to round out your fine explanation, here are <BR/><A HREF="http://books.google.com/books?id=WceRw3sr-rQC&pg=PA346&lpg=PA346&dq=spectroscopy+jesuits+rome&source=web&ots=MxQ-GJy1c6&sig=ry5sFJng8ctqIWWDLuHVrpLDdkA#PPA346,M1" REL="nofollow">some words about how stellar spectroscopy Unknownhttps://www.blogger.com/profile/09620612186008751822noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15892606089407706522007-12-09T18:50:00.000-05:002007-12-09T18:50:00.000-05:00a quantum leap?:)Refreshing article you two wrote....a <A HREF="http://eskesthai.blogspot.com/2006/12/n-category-and-hydrogen-spectrum.html" REL="nofollow">quantum leap</A>?:)<BR/><BR/>Refreshing article you two wrote.PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-53269972531775370622007-12-09T17:04:00.000-05:002007-12-09T17:04:00.000-05:00Hi Uncle Al,thanks for reminding me of this paper ...Hi Uncle Al,<BR/><BR/>thanks for reminding me of this paper by Frankfurt and GSI people - it's physics research "from home". ;-)<BR/><BR/>As far as I know, atomic physics with bare heavy ions such as Uranium 91+ will also be on the agenda of the <A HREF="http://www.gsi.de/fair/experiments/sparc/intro_e.html" REL="nofollow">FAIR project SPARC</A>. <BR/>You see, Bee, with heavy ions instead of stefanhttps://www.blogger.com/profile/09495628046446378453noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-7499908913923702612007-12-09T15:16:00.000-05:002007-12-09T15:16:00.000-05:00The hydrogen Lamb shift is generally celebrated as...The hydrogen Lamb shift is generally celebrated as a whisp of near-nothing net that validates the quantum vacuum. Uranium-238(91+) has been a particularly fun ride - its Lamb shift is enormous!<BR/><BR/>Phys. Rev. Lett. 94 223001 (2005)<BR/>http://link.aps.org/abstract/PRL/v94/e223001<BR/>http://www.arxiv.org/abs/physics/0107036<BR/>459.8 eV vs 463.95 (Stöhlker, et al.) theory in a total ground Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-73108302329840109092007-12-09T13:28:00.000-05:002007-12-09T13:28:00.000-05:00Quite astonishing how much one can learn just from...Quite astonishing how much one can learn just from hydrogen. Who needs heavy ions? ;-) When I first heard about quantum mechanics, how it was introduced to explain the atom is stable, and the discrete energy levels etc I thought quantization is such a great and simple idea. But since then I've wondered what sense it makes to speak of 'free particles'. Best,<BR/><BR/>B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.com