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by twerpod
Mon Feb 15, 2016 5:50 pm UTC
Forum: What If?
Topic: What-If 0145: "Fire From Moonlight"
Replies: 157
Views: 50490

Re: What-If 0145: "Fire From Moonlight"

This Winston paper "The thermodynamic limits of light concentrators" from 1990 is full of math, and includes discussion of how thermodynamics support concentrations greater than the surface of the sun through combination of non-imaging and a high dielectric material like sapphire. It also...
by twerpod
Fri Feb 12, 2016 4:23 pm UTC
Forum: What If?
Topic: What-If 0145: "Fire From Moonlight"
Replies: 157
Views: 50490

Re: What-If 0145: "Fire From Moonlight"

I had a memory of an old article on "brighter than the sun" so I google searched for Chicago sapphire solar concentrator and found a number of links for work by Roland Winston. One was a blurb in Tech Update section of the May 1991 issue of Popular Mechanics, describing a 16" diameter...

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