t

Nov. 6th, 2009 11:18 pm
anhinga_anhinga: (Default)
The strangest impression from my October trip to Moscow was mainstreaming of Pelevin. The ads for his new novel, "t", were on subway escalators, the book itself was featured prominently in airport book kiosks. ExpandRead more... )

Since I started to talk about "t", I want to write a bit about treatment of time in the "Quantum Gravity" book I mentioned in the previous post. The most interesting is his "Thermal time hypothesis", a conjecture that time is on its fundamental level induced by the thermodynamic considerations. ExpandRead more... )
anhinga_anhinga: (Default)
'(Newtonian) space was the "sensorium" of God, the World as perceived by God.' Expandonline reference )

This is the only textbook on loop quantum gravity and it can actually be partially understood by non-physicists. For example, in mid-90s I was trying to imagine how one could have discrete space at the quantum scale, but so that it still appears continuous at the macroscopic level. All variants I could come up with were pretty ugly. This book contains a very neat construction of that. ExpandRead more... )
anhinga_anhinga: (Tesla coil)
http://nezzwerk.livejournal.com/76851.html
http://tesladownunder.com/

What does it take to try something like that?

John Baez

Mar. 4th, 2007 06:32 pm
anhinga_anhinga: (story)
John Baez talks about string theory and why more physicists should concentrate on the other approaches in his latest "This Week's Finds in Mathematical Physics" ([livejournal.com profile] john_baez):

http://math.ucr.edu/home/baez/week246.html

The last part where he talks about "hill climbing" vs. "valley crossing" approaches to physics is especially interesting.

He also runs a very cool group blog together with David Corfield and Urs Schreiber called The n-Category Café. The latest entry is about a new attempt to formulate a topos foundation for theories of physics by Andreas Döring and Chris Isham.
anhinga_anhinga: (Default)
A nice collection: the English translation of the orginal "On a new kind of rays" by Röntgen and a number of other seminal papers (each no longer than 5 pages, the typical length is 2-3 pages, all are in English):

http://deutsche.nature.com/physics/
anhinga_anhinga: (Default)
http://antwrp.gsfc.nasa.gov/apod/ap060323.html

It looks like a loudspeaker...
And it's completely ad hoc, the theoretical beauty of the original expansion models is gone.
(via [livejournal.com profile] apod)
anhinga_anhinga: (Default)
It only takes 16 Tesla to levitate a frog. And high-field MRI is only 10 times weaker...
anhinga_anhinga: (Default)
[livejournal.com profile] not_even_wrong is a feed of the blog by Peter Woit of Columbia University.

Not Even Wrong is what he thinks about the string theory.

(via [livejournal.com profile] solomon2)
anhinga_anhinga: (Default)
100 years since the publication of the article "On the Electrodynamics of Moving Bodies" (read it, it's not all that difficult).

(via Wikipedia)

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