"...That Can Make Solar Power and Cool Buildings" but "What they weren’t able to test is whether the device also produced electricity. The upper layer in this e

"...That Can Make Solar Power and Cool Buildings" but "What they weren’t able to test is whether the device also produced electricity. The upper layer in this experiment lacked the metal foil, normally found in solar cells, that would have blocked the infrared light from escaping." They've invented an over-elaborate heat shield until they can demonstrate what the title promises.