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LeopoldS

Technology Review: Stretchable Displays - 0 views

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    can somebody have a look at this? this looks really interesting to me! should we have a deeper look - anybody volunteering? where is José when we need him :-) ?
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    OLEDs, synonym of cheap and last 2 weeks. It is cool indeed, but for space appl. ...
Nicholas Lan

Nice sea and ocean depths diagram - 2 views

shared by Nicholas Lan on 10 Apr 12 - No Cached
Ma Ru liked it
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    What stroke me especially was the shape of the Marianas Trench (much wider than deep) [edit] This reminds me I used to have a printout of a similar, but more space-related, comic http://xkcd.com/482/ hanging on the wall next to my desk in estec... good ol' times...
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    and in case you missed it, check also the excellent Money infographic that guy created last year: http://xkcd.com/980/huge/
santecarloni

[1010.3437] Dynamical mass generation via space compactification in graphene - 0 views

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    Is it really possible?
  • ...2 more comments...
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    The affiliation is Saudi Arabia and Marocco, not countries famous for their contributions to physics... But nonetheless, yes this is possible, to me it even looks very plausible! But you should know that the term "mass" in this context just means a certain parameter in the dynamical equations and only has a loose relation to what we usually call "mass" in the macroscopic world.
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    ok - admit that I only read the abstract but to me the seems to be a little bit of magic happening ... even if "mass is only a certain parameter in the dynamical equations" ... I assume it still bears some "heavy" consequences in terms of their speed, interactions etc, no? and assuming that you gradually bend such a structure from a 2D to a 1D one ... does it "gain" mass gradually? all very strange to me ...
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    I think the problem is in the boundary conditions... the issue is that if you use and infinite sheet or a cylinder in the equations you always take cyclic boundary condition. If this guys are right then the mass of the quasi-particles in a crystal depends on its topology... this is a major thing...
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    BINGO!! It's almost like good ol' Kaluza-Klein...
Francesco Biscani

Can Curiosity Be Programmed? - 4 views

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    Deja-vu?
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    He talks on "Singularity Summits" of good ol' Kurtzweil? Surprised?
Ma Ru

Video prize for Dorigo & co. - 2 views

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    Good ol' Swarmanoid.
LeopoldS

Optics InfoBase - Highly directional radiation generated by a tungsten thermal source - 0 views

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    as with my last post: how long could such distances get? ready for SPS?
ESA ACT

Optics InfoBase - 0 views

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    Electromagnetic analysis of cylindrical invisibility cloaks and the mirage effect
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