Yes from both. You need both. Earth works as the ground. The negative. And with all the copper on top of the buildings
Someone needs to build a small-scale working prototype and open-source it immediately and anonymously like Satoshi.
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There are many of us now looking at building this stuff.
The only way we will get it is to build it ourselves and release it anonymously.
I seen a video on YouTube of someone doing it on a very very small scale
