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324. Video of the day: nice visualizations of elementary particles
Happy early Saturday, science geeks! Here is a little gift for you which will hopefully help you to sleep better (that’s what I am going to do now ) – nice visualizations of elementary particles It is not like they have anything to do with reality, but I liked the idea very much. The set [...]
323. Fractional quantum Hall effect in some multicomponent systems
Zlatko Papic is a PhD student at LPS, Universite Paris-Sud, France (his advisors are Mark Goerbig and Nicolas Regnault) and SCL, Institute of Physics, Serbia (where his thesis advisor is Milica Milovanovic). His main interests include quantum Hall systems. Dmitry. In recent papers, we have investigated the origins of fractional quantum Hall states that occur [...]
322. Video of the day: “Boston Dynamics”
I think it is worth posting about… I’ve noticed the BigDog project (by Boston Dynamics) about a year ago. It seems that their robot is now good enough for U.S. military to use it in Afghanistan. The first video in the playlist is BigDog’ test in March 2008 (very impressive), the second shows that sometimes [...]
321. Holographic hydrodynamics
Miguel Paulos is a PhD student at DAMTP, U. of Cambridge working on non-equilibrium AdS/CFT. Dmitry. In this post I will describe recent work done by myself, Robert Myers, and Aninda Sinha to understand strongly coupled plasmas with a finite chemical potential. For more details and full references see 0903.2834. Let us start with some [...]
320. Video of the day: STS-119
Here I’ve collected some videos by NASA related to the recent somewhat problematic Space Shuttle mission STS-119. The mission’s goal is to the fourth set of solar arrays and batteries to the station, you will find complete walkthrough of the mission below.
319. Turbulence. Dynamical approach
When we study a turbulent flow, whether turbulence is realized in fluid, plasma, etc., one of the most interesting and complicated questions is the one about transition to turbulence: how exactly the smooth motion of the field becomes turbulent, chaotic, independent of external noise? It seems to be impossible to answer to this question using [...]
318. Glueballs and gluelumps as bound states of transverse constituent gluons
Fabien Buisseret is a postdoc at the Nuclear Physics department of the University of Mons-Hainaut. His interests include various approaches to QCD. Dmitry. 1. Generalities Among other exotic hadrons like hybrid mesons and tetraquarks, QCD allows the existence of purely gluonic bound states, called glueballs, whose structure and properties deserve a lot of interest theoretically. [...]
317. Global crisis: one interesting plot
As it seems, I did not write about global crisis for quite a long time It is not like I see any meaning to get deeper into finding ultimate reason why the crisis had to take off (I guess the only meaningful question one might ask in the present situation – “what am I, personally, [...]
316. Richard Hamming’s “You and your research”
Gabriel Robins, professor of computer science at the U. of Virginia, has kindly allowed me to repost this amazing transcript at NEQNET… I hope you’ll enjoy it as much as I did. Dmitry. Richard Hamming “You and Your Research” Transcription of the Bell Communications Research Colloquium Seminar 7 March 1986 J. F. Kaiser Bell Communications [...]
315. Turbulence: order and disorder in turbulent flow
Let us continue our short excursion into physics of developed turbulence (I hope that you don’t mind, if you do – please let me know ) Last time we have discussed technicalities related to averaging and statistics of the turbulent flow, today I would like to get back to foundations and discuss a bit various [...]
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Large non-Gaussianity from axion inflation
January 31, 2012 14:01 -
On strong disorder renormalization
March 18, 2011 20:03 -
Relaunching NEQNET
January 20, 2011 21:01 -
Saturday’s photoguess: what does this monkey symbolize?
June 20, 2009 19:06 -
Dynamics of space storm
June 19, 2009 12:06
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Micro: Can 2 question provide a common solution? Black holes, information loss paradox and Ultra high energy cosmic rays. ...
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James Ph. Kotsybar: SAGITTARIUS A* -- James Ph. Kotsybar Mysteriously cloaked, obscure despite Interior illuminating glare, Long ...
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cad: The presentation can be found in several formats at http://pirsa.org/08110051/...
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Leo: Ok I have a question: if a black hole is supermassive, say 100 billion solar mass, let's suppose Alice fells int...
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superkuh: I am glad you are back! No more disapointing weekly refreshings of that monkey....
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Ariel Amir: Very interesting, thanks. It indeed seems to be very close to what we discuss here. I wonder whether the distributi...
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