You better read it yourself...but americans can apply to produce technology
https://technology.nasa.gov/patent/LEW-TOPS-80
Oh, and lets not forget to make sure we include reliance on fossil fuels.
Cobalt bolted between two strong magnets
Two of these at opposite ends of a tube at a distance proportional
to the wavelength of the resonant cavity formed by the tube
The area in between the generators is heated
This causes a thermoacoustic vibration to resonate in the cavity
a coil around each generator sends the thermoacoustelectricity
off to your load