[Chad C. Mulligan]

Then where does that additional radiant energy come from? That’s the part I just don’t get.

I didn't quite get it either, which left Bill kinda frustrated with me. But it has to be extracting heat from the substrate. Exactly how that happens is still a mystery to me. Quantum mechanics or something. I'm just an ancient, retired, dirty-fingernail machine tool engineer.

[Leaning Right]

> Quantum mechanics or something. <

I actually taught a freshman-level college course on Quantum Mechanics for a few years. And from what I gather from the article, perhaps the key is that the paint is biodegradable.

So maybe when the sunlight hits the paint, it breaks a few chemical bonds. And those bonds release energy. But such an arrangement must eventually come to an end - when all of the paint bonds have been broken.

Bottom line: I don’t think it’s a Quantum Mechanics thing. Instead, I think the ChiCom scientists are funnin’ with us again.