Carnot Engines Obsolete

Breakthrough in energy harvesting harnesses non-thermal quantum states for higher efficiency

So far this year, they've announced the ability to sometimes move heat 7,000x faster than normal across a chip, and they've more less mastered all the thermodynamic math required to do almost anything. Here, Japanese scientists have found a way to beat all the records again, and we might wait another five years before the dust settles a little.

This kind of thing means your solar cells can collect heat and sunlight and, the hotter it gets, the more electricity it produces, and you could mount solar cells all over you car engine, and can integrate them into windows or whatever.