If only there was a solution, I don’t know, a cable resistent to jamming the ether, something we could call ether-jamming-resistant-network, in short Ethernet

I know… I am just dreaming :-P

Sorry, but you are wrong, battery means exactly chemical battery

Gravity electrical storage is not a battery

https://en.wikipedia.org/wiki/Electric_battery?wprov=sfla1

Yep

And the picture from 1991 is in black and white?

GTFO

Edit: seems I was wrong in my assumptions