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APPLIED
How to use technology to teach undegraduate biology
Explanations by Stony Brook U. professor William Collins: it was fun to watch for me.
Lithium problem
Apart from being a very nice review of Big Bang Nucleosynthesis (BBN), recent paper by Karsten Jedamzik and Maxim Pospelov discusses an important open problem in the physics of BBN. In short, the lithium problem in physics of Big Bang Nucleosynthesis is seeming underproduction of . What do we mean by that? Well, the lithium [...]
Michio Kaku on artificial intelligence
Nowadays, it is fashionable to hypothesize that an advanced AI, when it appears, will wipe pathetic humans out of the face of the Earth (risk of unfriendly AI, as transhumanists like to call it). I think, what’s not taken into account in these considerations is that humans will evolve as well, will be willing to [...]
How might one design a nano-machine?
Significant advances in laboratory techniques in tailoring and processing materials at the atomic level have resulted in nanotechnology becoming an increasingly mature field. One of the exciting goals of nanotechnology is the design of powerful nano-machines, i.e. functional entities at the nano-scale that work like macro-world machines. A simple nano-machine would be an entity that [...]
Vorticity generation in cosmological perturbation theory
Adam Christopherson is a PhD student at Queen Mary, U. of London working with Karim Malik on cosmological perturbation theory. Dmitry. In this blog post, I will summarize recent work on vorticity generation in cosmological perturbation theory, undertaken by Karim Malik, David Matravers and myself. The main result of the paper this is based on, [...]
Average life expectancy or more on data visualization
In continuation of my series of posts about data visualization (Dynamical maps and Gapminder), let me show you today another cool resource: interactive map of the world StatPlanet. Here is for example a map showing average age in different countries (data from 2006): Russia seems to be rather mature country on this map – average [...]
A bound on the speed of sound from holography?
This post is authored by Aleksey Cherman (on the left) and Abhinav Nellore (on the right). Aleksey is a graduate student in the nuclear theory group at the University of Maryland, College Park, working with Tom Cohen, and Abhi is a graduate student in Steve Gubser’s group at Princeton. Dmitry. We all know that sound [...]
Nanotechnology for fun and profit: video of the day
This is a 50 min lecture about new nanotechnologies (carbon nanotubes, in particular) by Ray Baughman given at Carnegie Mellon U. As you may know, Russian government plans starting large scale investing into nanotechnology and have already organized a company (Rusnano, formely Rosnanotech) to channel government investments. The head of the company is Anatoly Chubais, [...]
Self-improving artificial intelligence: video of the day
A lecture (colloquium, more precisely) by Steven Omohudro given at Stanford. If you don’t know about the lecturer, the guy has had quite an impressive career: he started as theoretical physicist, but switched eventually to AI and neural networks (among may other achievements on this field, he held an assistant professorship at U. of Illinois [...]
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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Ysaac: 1- there is no current epraximentel data that clearly goes beyond the SM and GR. This is not true. There is exper...
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Shayne O: I suspect actually she'd feel like she's been torn apart due to the differential in gravity from her head to her to...
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milad khodayi: im going to work on the M theory and i hope i will answer all the unsolved...
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Afshin: I am a graduate student of physics, my thesis was about cosmological constant problem as well as inflation. recentl...
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Attila: I'm a few years late on commenting on this, but maybe someone will reply. :) What do you even mean by chromo-ma...
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Johan: KEITH C, You are totally correct by deducing that the quantum Hall-steps are being CAUSED by superconduction. Th...
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Neeta Mohla: Hello, Dr. Dmitry I'm a science enthusiast and read yr review of biocentrism. I've been sceptical on both sides an...
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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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