tag:blogger.com,1999:blog-22973357.post5303660784098144469..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: If you're interested in the phenomenology of quantum gravity...Sabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger48125tag:blogger.com,1999:blog-22973357.post-68559980516939482812010-11-05T07:15:25.135-04:002010-11-05T07:15:25.135-04:00Hi Steven,
I wrote exactly one paper on neutrinos...Hi Steven,<br /><br />I wrote exactly one paper on neutrinos... I think at present it's likely, though not entirely settled, that something funny is going on regarding the difference in the neutrino/anti-neutrino oscillation pattern, but I think it's far from clear the right explanation is a 4th neutrino. It is also to some extend not "pretty" in that the additional neutrinos Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-8185653090853241142010-11-05T03:10:35.463-04:002010-11-05T03:10:35.463-04:00Thank you Bee, and Robert, of course the Philosoph...Thank you Bee, and Robert, of <i>course</i> the Philosophers (Natural, Professional and unfortunately Pop) "tipple" a bit as you put it? Where do you think the truly great ideas come from. ;-)<br /><br />Again Bee, thanks, I see I have more to explore, and thanks for pointing the way.<br /><br />Bee, what do you think of the latest from Fermilab re the MiniBooNE experiment as noted <Steven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28948225315724745752010-10-23T22:13:31.503-04:002010-10-23T22:13:31.503-04:00Methinks the philosopher doth tipple a bit.Methinks the philosopher doth tipple a bit.Robert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-39211130471080371762010-10-23T08:18:40.344-04:002010-10-23T08:18:40.344-04:00Hi Bee,
An interesting piece you pointed out to S...Hi Bee,<br /><br />An interesting piece you pointed out to Steven standing as one that you wrote prior to me becoming a follower of this blog. It’s so interesting in fact it reminds me that I should look back on what you’ve written since its inception. If I have you point correctly, being although the experiment stands to deminstrate that the motion of the neutrons is quantilized within a Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-8191220192742351772010-10-23T07:46:28.934-04:002010-10-23T07:46:28.934-04:00Hi Steven,
What you say is roughly correct. In th...Hi Steven,<br /><br />What you say is roughly correct. In this case however it's not a matter of energy. The reason why there's no quantization of gravity to be found in such an experiment is just that the gravitational field of the Earth is much too weak. Weak as it is, it's to excellent precision classical. One can measure the quantization of particles in the classical field, but Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-55282664905017717462010-10-23T07:25:11.482-04:002010-10-23T07:25:11.482-04:00Hi Steven,
True to begin with there is nothing of...Hi Steven,<br /><br />True to begin with there is nothing of significance measureable in Don’s setup, yet beyond that there are basic conceptual problems respective of the actions of gravity relative to time under GR and what role acceleration does or doesn’t play in it and also to that of relative motion (speed). For instance if the tower’s base sit on the equator and the top of it at the samePhil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-49556115498831819252010-10-22T16:19:23.554-04:002010-10-22T16:19:23.554-04:00Hi Bee, you wrote:
It's not.
In response I be...Hi Bee, you wrote:<br /><i>It's not.</i><br /><br />In response I believe to Don Foster's comment:<br /><i>With all the usual apologies for perhaps hopelessly naive questions, I am wondering if the acceleration provided by the tower is measurably quantized. </i><br /><br />In which case I think Bee you just won the BackReAction's Fewest-Words-With-Most-Content award of the day. I willSteven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-7821618331620267952010-10-22T12:12:39.029-04:002010-10-22T12:12:39.029-04:00Does one ever understand their motivations in the ...Does one ever understand their motivations in the choice of this subject? <br /><br />What drives your interest may and may not most certainly be driven by the same motivations of another, does not mean you discount that process to certainty?<br /><br /><br /><b>S-Band Transponder Doppler Gravity Experiment</b><br /><br /> <i>The gravity experiment used measurements of perturbations in the PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-22719767161397508772010-10-22T12:02:40.512-04:002010-10-22T12:02:40.512-04:00A Constant that Isn't Constant
....Since the ...A Constant that Isn't Constant<br /><br /><i>....Since the 1930s physicists have discussed whether the constants that appear in the equations for the fundamental laws of physics--such as the speed of light in vacuum and the electron charge--are actually constant. If they have changed over time, nature may have worked in different ways at different times, even if the equations themselves have PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-69715221304405237872010-10-22T11:52:03.176-04:002010-10-22T11:52:03.176-04:00Resonance curve?
http://physicsweb.org/objects/wo...Resonance curve?<br /><br />http://physicsweb.org/objects/world/16/4/9/pwweb5_04-03.jpg<br /><br /> <i>The world's most precise atomic clocks are now made from "atomic fountains". A gas of atoms within a vacuum chamber is trapped by a set of intersecting laser beams and cooled to a temperature close to absolute zero. The ball of atoms is then tossed vertically into the air by PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-86691209186724491092010-10-22T11:13:34.638-04:002010-10-22T11:13:34.638-04:00:p):p)PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-68501266957620472552010-10-22T09:54:43.459-04:002010-10-22T09:54:43.459-04:00It's not.It's not.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-10348683359635015902010-10-22T09:49:01.803-04:002010-10-22T09:49:01.803-04:00In “From Eternity to Here” I was surprised to lear...In “From Eternity to Here” I was surprised to learn that one of the measurable differences predicted by General Relativity is illustrated in this scenario.<br />Say one builds a very tall tower up to the altitude of the orbit of a satellite and places a clock, one each, on both the tower top and the satellite. Apparently the clock on the tower would run more slowly because it is being acceleratedDon Fosterhttps://www.blogger.com/profile/04814669413022486958noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-1664789617656569502010-10-22T06:26:49.403-04:002010-10-22T06:26:49.403-04:00Hi Arun & Steven,
I think the most valuable t...Hi Arun & Steven,<br /><br />I think the most valuable things being not those which we pass onto our children, yet rather those things we endeavour to have first preserved and then strengthened in them, being something which all children seem to be born with and that being a natural curiosity. That is I’ve found this being consistent with discovering as to what to be in common with the most Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-40960488886180022822010-10-22T02:50:50.437-04:002010-10-22T02:50:50.437-04:00Thank you for that link, Arun, Dick Lipton has a w...Thank you for that link, Arun, Dick Lipton has a wonderful blog. I liked this comment:<br /><br />Gilbert Bernstein permalink<br />October 20, 2010 6:28 pm<br /><br />I’m sure you must have heard this terrible math joke, but just in case someone hasn’t. (I first heard this joke in a talk by Ron Graham. Credit where credit is due.)<br /><br />Did you know that all numbers are interesting? What’s Steven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-41045933422910977742010-10-21T23:51:39.080-04:002010-10-21T23:51:39.080-04:00Hi Bee,
Traditional Indian belief is that childre...Hi Bee,<br /><br />Traditional Indian belief is that children in the womb imbibe knowledge from the words their parents speak.<br /><br />So here is a nice blog post to read aloud for mathematically precocious children :)<br /><a href="http://rjlipton.wordpress.com/2010/10/19/miracle-numbers-such-as-56/" rel="nofollow">http://rjlipton.wordpress.com/2010/10/19/miracle-numbers-such-as-56/</a><br />Arunhttps://www.blogger.com/profile/03451666670728177970noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11028160920148348632010-10-21T12:58:39.585-04:002010-10-21T12:58:39.585-04:00What an opportune time for thinking and study!
Ma...What an opportune time for thinking and study!<br /><br />Maybe you could leave the "Battle of the Blogs" to your co-blogger Dr. Kraken? <br /><br />"Release the Kraken!"?Robert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-81762053162880693032010-10-21T12:17:48.656-04:002010-10-21T12:17:48.656-04:00I second Christine's motions, and no they'...I second Christine's motions, and no they're not up a vote, because Christine is completely correct.<br /><br />I witnessed my wife go through 4 last trimesters, and although they were all different, they all had THIS in common: they were TOUGH!<br /><br />We all know you're an admirably tough gal, Bee, but let your two little angels-to-be, Bee, dictate when you sleep and rest, and Steven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-86566264106830587532010-10-21T11:07:55.029-04:002010-10-21T11:07:55.029-04:00Uncle Al
Take note?:)
The angular movements nee...Uncle Al <br /><br />Take note?:)<br /><br /><i>The angular movements needed to signal the presence of additional dimensions are incredibly small — just a millionth of a degree. In February, Adelberger and Heckel reported that they could find no evidence for extra dimensions over length scales down to 0.2 millimetres (ref. 11). But the quest goes on. The researchers are now designing an improved PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-25374848435968974632010-10-21T10:50:01.566-04:002010-10-21T10:50:01.566-04:00Eric Adelberger on Aug 12th, 2005 at 2:37 pm
...<a href="http://cosmicvariance.com/2005/08/10/modifications-to-general-relativity/#comment-1310" title="<br />Modifications to General Relativity?-by JoAnne of Cosmic Variance" rel="nofollow">Eric Adelberger on Aug 12th, 2005 at 2:37 pm</a><br /><br /> <i>Please don’t get too excited yet about rumors concerning the Eot-Wash test of the 1/r^2 law. We can exclude gravitational strength (|alpha|=PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-22444983917370442642010-10-21T10:38:50.969-04:002010-10-21T10:38:50.969-04:00Wegener proposed that the continents floated somew...<i>Wegener proposed that the continents floated somewhat like icebergs in water. Wegener also noted that the continents move up and down to maintain equilibrium in a process called isostasy.</i>Alfred Wegener<br /><br />Okay,<br /><br />In concert with phenomenological approach, how is this to be categorized in direction of Quantum Gravity research? In relation too, Eöt-Wash Group?<br /><br /><b>PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-59611565616354668662010-10-21T05:15:11.771-04:002010-10-21T05:15:11.771-04:00Hi Christine,
You said; ”There must be n copies o...Hi Christine,<br /><br />You said; <i>”There must be n copies of Zephir out there”</i><br /><br />I do hope your hypothesis is proven wrong, as it could stand to be a major blow to both Darwinian Theory and Quantum Mechanics. That is it would be hard to understand how this could transpire by way of either a process of natural selection or one dictated by probability. None the less I do agree Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-21462354189248513082010-10-20T16:48:44.501-04:002010-10-20T16:48:44.501-04:00Hi Bee,
With all due respect, but if I were expec...Hi Bee,<br /><br />With all due respect, but if I were expecting twins, with a lot of busy times ahead (not a couple of days or months, but very busy *years*), including a complete change in lifestyle, priorities, etc, I would not waste an erg with Zephir. There must be n copies of Zephir out there; only one of them really said good-bye. The others seem not to understand all that has been Christine Cordula Dantashttps://www.blogger.com/profile/05271747374185459530noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-86740803244521706582010-10-20T13:20:09.154-04:002010-10-20T13:20:09.154-04:00Dr. H comments: "The quest for quantum gravit...Dr. H comments: "The quest for quantum gravity may proceed slowly and sometimes be frustrating, but the reward will be nothing less than a revolution of our understanding of space and time.”<br />---------------------------<br /><br />I trust that you will agree that when one cannot even identify "experimental signatures", and consequently any immediate hope for definitive Robert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90176598602442943362010-10-20T13:11:06.471-04:002010-10-20T13:11:06.471-04:00This not a one eyed cyclops :)
The parametrized d...This not a <a href="http://www.supersci.org/images/front/front5.jpg" rel="nofollow">one eyed cyclops</a> :)<br /><br />The parametrized development are mathematically/computationally orientated to help with that synoptic view of the dynamics of our universe. <br /><br />How do such particulate dynamics reveal them-self, as if Garrett's mapped positing design "overlapped" on a E8 PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.com