Something new under the sun

Interesting article about a new type of heat engine that could double the efficiency of photovoltaic power generation and make it competitive with coal. Apart from the exciting technical possibilities, it’s a wonderful rags-to-riches story of a poor kid from Mobile, AL.

Other links for background: 1) Wikipedia article about the Johnson thermoelectric energy converter. 2) Web page for Johnson ElectroMechanical Systems.

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