[ExI] Small scale solar payback time (was Re: Planetary defense)

[Eugen Leitl]

On Wed, May 18, 2011 at 01:56:40PM -0700, Samantha Atkins wrote:

> Hmm.  So I can recharge batteries from the heat my CPU puts out or run  
> the cooling units with it?  It doesn't say how efficient it is on heat  
> energy alone.   Capturing waste heat has all kinds of interesting  
> possibilities.

They started with THz and FIR first, because the geometries
are bigger. In principle rectenna-like nanostructuctures 
should at least carry into VIS.

-- 
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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