A couple of years ago, I unsuccessfully tried to track down an article from a science magazine I had read about how you could easily build huge solar cell farms with a system of self replicating (but quite dumb) robots. I could not remember which magazine I had found it in.
[I have kept most of my old popular science magazines (starting with Omni in the late 70's and 80's, New Scientists and Discover magazine, and the occasional Scientific American.) My wife does not appreciate the hoarding of magazines that, admittedly, I rarely have cause to look at again, but there is a spare room at my office that can hold the boxes.]
Anyway, by pure chance, tonight I found someone in comments at Futurepundit has linked to the story, from 1995. (It was in Discover and is still on line.)
I love the WWW.
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