tesla rocks ! :) good post , extra points for you !

a rectenna or crystal radio is a simple device that uses an antenna, a rectifying crystal and a load to get energy from radio waves and other electromagnetic frequencies.

the use of a silicon carbide and graphene antenna and rectifier could produce unbelievably powerful rectennas and crystal radios.

ill be leaving links below. i am in possession of very advanced knowledge on solar and other forms of energy. a silicon carbide and graphene solar and crystal radio could power the world much better than our pathetic silicon solar panels. to produce silicon carbide and graphene, we need to melt quartz sand w activated carbon at 2500 celcius. then reheat it after it has cooled to expose the graphene underneath.

https://en.wikipedia.org/wiki/Graphene_antenna

https://en.wikipedia.org/wiki/Crystal_radio

https://en.wikipedia.org/wiki/Graphene

https://en.wikipedia.org/wiki/Silicon_carbide