I bought a subscription to this and two other magazines on Cyber Monday. I believe that I have received a total of six copies. Anyway, while trying to find something else I ran across this. Let me tell you, I have dreamed of this technology!
New Alloy Can Convert Heat Directly Into Electricity | Popular Science
I do not know for sure, but I have long believed that an air conditioner actually produces more heat than it cancels, while heat is energy, and I have wished that I could figure out how to make use of that energy. We have plenty in Arizona. My laptop gets too hot, I cannot touch my steering wheel in the summer, and not only are solar panels inefficient, they get hot, too! Still, I hate thinking that it might be ten or twenty years before anything useful comes out of this.