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Comment on A film that can cool buildings without the use of refrigerants

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Wow, this is such a beautiful example of basic science turning into powerful technology. Technology which looks like it will be both cheaper and better for the environment than any current alternative.

Does anyone have an idea of how long this might take to get to market as a rooftop heat exchanger for domestic use? I guess it largely depends on durability of the film; presumably the heat exchanger part of the system is a known quantity.

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