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Archive for May, 2009
Witten interviewed by Ira Flatow on Big Ideas: video of the day
.. and a very clear introduction into string and M-theory for dummies
Fermi telescope does not confirm DM claims
Fermi Space Telescope (image by NASA) Fermi gamma-ray space telescope was unable to predict the presence of the 300-800 GeV peak in the distribution function of high energy electrons in cosmic rays. Let me remind you that the anomaly we are talking about was claimed to be found by the ATIC team and generated recently [...]
387. Gapminder and dynamical visualization
Nowadays, in statistical analysis of various economic or social factors we mostly use plots where time is just another coordinate along another axis. In real life we do feel time and dynamics of various processes in a different fashion – time is more like a sequence/collection of snapshots taken at its different moments, in the [...]
386. Saturday’s photoguess
The questions related to this photoguess: a) what is the physical phenomenon on the photo? b) who made it? (where it was made?) Seek and thou shalt find! Update: kudos to hukrepus , according to him/her this is larger than average (>5m) lumps of material in Saturn’s rings with the Sun shining almost edge on [...]
385. NEQNET: Last two weeks of April
The last month of the spring 2009 has started. Like all crazies, who usually get a bit more active during spring, I want (need) to become more active – my spirit requires some change. In this respect, I would like to ask you – what do you want to see new on NEQNET? New design? [...]
384. More news from NASA
First, it seems that Orion will generally (that is, not just on missions to the Moon) carry 4 astronauts instead of 6, as was initially planned. This is fantastic news for the Russian Space Agency, since NASA will have to use Soyuz spacecrafts as an escape module for ISS – the number of crew members [...]
383. Puzzling kinetics of Bose-Enstein condensation
Just finished reading a really review “Magnon BEC and spin superfluidity” by Yu. Bunkov and G. Volovik, which left me with quite a bit of material to think about… Probably the thing that stroke me most after digesting the review is how poorly I (or in truth – it’s better to say “we”) actually understand [...]
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On moduli stabilisation in heterotic orbifolds
April 24, 2012 09:04 -
A holographic model of the quantum Hall effect
April 19, 2012 09:04 -
Transdimensional Multiverse Measures
April 18, 2012 11:04 -
Large non-Gaussianity from axion inflation
January 31, 2012 14:01 -
On strong disorder renormalization
March 18, 2011 20:03
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Momchil: I want to ask the experts about an apparent confusion, that appears in many papers on the Unruh effect. As you stat...
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Paul: Excellent list! how lucky you are to be involved in the effort to solve some of these. On time, I question its re...
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philbert: Simple illustration and may apply to mixed layer boundary layers, how about the stable and other types of boundary ...
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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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