[ RadSafe ] Solar stuff

[JPreisig at aol.com]

Radsafe/Mike,
 
     Good observations, Mike.  I like nuclear, but  will look at solar also.
 
     Don't need to transmit the solar energy all at  once, and can have 
multiple satellites.
 
     As for pinpoint accuracy, we currently do LLR  (Lunar Laser Ranging) 
to a retroreflector on the Moon (a few meters wide???) and  receive the 
return signal photons (20 photons???) with a microchannel  plate.  For more 
information on LLR, see Bogdan Maglich's Adventures in  Experimental Physics or 
Goddard Space Flight Center's Website or the  internet.
 
     Somebody is working on this solar transmission  stuff.  Of course, I 
like the controllability of Nuclear Power.
 
     Joe Preisig
 
  
 
 
In a message dated 3/19/2015 1:32:58 P.M. Eastern Daylight Time,  
Mike.Brennan at DOH.WA.GOV writes:

Years  ago I read a thread where someone was talking about how nuclear 
power wasn't  necessary, because solar power satellites could produce a nearly 
unlimited  amount of electricity that could be beamed down to Earth.  I 
pointed out  there were still some non-trivial practical issues to solve, and 
that if he  didn't like thousand megawatt nuclear facilities, he REALLY 
wouldn't like  terawatt microwave lasers in space.  If you assume the satellites 
are in  geosynchronous orbit a mile-wide receiving antenna requires far better 
than  pin-point accuracy.  

-----Original Message-----
From:  radsafe-bounces at health.phys.iit.edu  
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of  JPreisig at aol.com
Sent: Thursday, March 19, 2015 9:41 AM
To:  radsafe at health.phys.iit.edu
Subject: [ RadSafe ] Solar  stuff

Radsafe,

Some interesting stuff about  solar energy  lately.

Australian researchers  are claiming 40%  conversion efficiencies for their 
solar  cells.

Other solar researchers are thinking  about  ways to collect solar energy 
in space (in Earth orbit) and how to  beam the  energy to the Earth's 
surface.  Too bad Tesla isn't around  to help with  this idea.  Have satellites 
around the Earth with  solar collecters???

The other idea is to place  optics/mirrors  etc. in Earth orbit to direct 
Sunlight to collection  points on the Earth's  surface.  Sounds much like the 
Bond movie ---  the Man with the Golden Gun  (the Solex).  Also sounds like 
solar  weapons systems tinkered with by the  Germans in WW II.

Time to get a second MS/MA degree in solar   energy/EE/Applied Physics from 
the Colorado School of Mines (Solar  Energy  Research Institute) or 
somewhere like that..???.

Joe  Preisig


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