Half a croissant, on a plate, with a sign in front of it saying '50c'
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Solar Coil

a lot of hot air
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Large glass coil, shaped like a tightly wound spring spiraling upwards. Air inside is heated, and thus rises, shooting out the top & sucking air in the bottom. At the top is a turbine to create electricity. For a small one I'm thinking maybe a 1m diameter tube, mabe about 3-5 meters high, but they could be any size really. Placed in the desert these suckers would get mighty hot.
simonj, Mar 17 2004

Solar tower http://www.popsci.c...2543,396386,00.html
Google also Solar Chimney Manzanares Spain [kbecker, Oct 04 2004, last modified Oct 21 2004]

[link]






       Solar chimneys are in the oven. See Mountainside Solar Chimneys in the list above.
FarmerJohn, Mar 17 2004
  

       Unless the glass coil adds a special twist this is baked (link).
kbecker, Mar 17 2004
  

       Nice link [kbecker]
Mungo, Mar 17 2004
  

       [kbecker]Yeah, the twist is that it doesn't have to be twice the height of the Empire State Building (see link)
simonj, Mar 31 2004
  
      
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