I read somewhere that if you cover the inside of a VW bug’s roof with CDs, you’ll have a reflector focusing enough solar energy to boil water in a reasonably sunny climate. I’m curious: How far can this be scaled up, with racks of CD mounted on heliostats blasting a dark vessel to create steam to drive a turbine?

Best answer:

Answer by Nate
it is possible, but make sure all of the CD’s are clear, and more than what u think is necessary.

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