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I'm PhD student of computational solid state physics. I'm mostly interested in molecular electronics. In spare time I'm interested in computer game development, computer graphics and painting.

I'm a big fan pf of aeronautics, astronautics, military technology and high performance computing.


Apr
13
revised nuclear fusion scaling with reactor size
added 1 character in body
Apr
13
revised nuclear fusion scaling with reactor size
edited body
Apr
13
comment nuclear fusion scaling with reactor size
Btw. one of my motivations for this question is that I like big spaceships in sci-fi movies, and scaling laws of fusion reactors can be good arguments why tu build spaceships really big :D :D
Apr
13
comment nuclear fusion scaling with reactor size
Floris > exactly, I heard that deliberately build smaller than planned to save 20-40% of money, but the original project (original size) would probably achieve self-sustained reaction and power production.
Apr
13
comment nuclear fusion scaling with reactor size
anna_v : yes, I like inertial confinement fusion, but perhaps it has also some scaling laws? (I read Bussard paper some time ago .. there was something about scaling with $R^4$)
Apr
13
asked nuclear fusion scaling with reactor size
Apr
12
comment General relation between power density of any engine and dissiapation rate and temperature
ok, this I know, my question was rather about the heat flow rate. At higher temperature or higher temperature gradient the heat flow is higher. ( eg. termal conduction scales as $ dQ/dt \propto (T_2-T_1) $, thermal radiation scales as $ dQ/dt \propto (T_2^4-T_1^4) $
Apr
7
awarded  Tumbleweed
Apr
1
revised General relation between power density of any engine and dissiapation rate and temperature
added 35 characters in body
Mar
31
asked General relation between power density of any engine and dissiapation rate and temperature
Mar
29
asked What is the limit for the size of a galaxy?
Feb
20
revised a question regarding Fourier transform in electron microscopy
added 473 characters in body
Feb
20
answered a question regarding Fourier transform in electron microscopy
Feb
20
asked Energy conservation if photon absorbed below resonance
Feb
14
revised Antimatter production using normal matter rest mass
added 316 characters in body
Feb
14
comment Antimatter production using normal matter rest mass
ah, yes, but just 0.5 MeV :-( less than many nuclear reactions. I was thinking about some process which if combined with anihilation will convert to energy considerable share of rest mass of the source of normal matter.
Feb
14
asked Antimatter production using normal matter rest mass
Feb
14
comment Matter - Antimatter Reactory Practicality
OK, but question is if there is some possibility to produce antimatter by some other process than just by inverse aniholation. i.e. use some combaination of normal matter particles and use it's rest mass to produce antimatter whele satisfying all conservation laws. e.g. for example create some anti-taouon from taouon 2 positrions and 4 anti neutrinos.
Feb
12
awarded  Commentator
Feb
12
comment Complex structures bound by nuclear forces ( nuclear molecules ?)
in chemical molecules the interactions are also rather short-ranged ( e.g. just nearest neighbour interaction in LCAO Hamiltonian are enought to describe 90% of binding energy ). This does not limit the long range order.