more than 100 years after Tesla's.
A team of engineers is seeking $348,000 in funding on Kickstarter to build the world’s largest Tesla coils, capable of spitting artificial lightning for hundreds of feet. The Lightning Foundry, the brainchild of high voltage engineer Greg Leyh, will stand ten stories high (the original plan was 20 per cent higher) and will be …
Well I can give you a pretty good description (but you will be glad to know not here). It is all to to with charge making voltage and voltage making the air break down. There is very little power in it until it creates an ionised path to earth then wham all the current flows.
It has absolutely nothing to do with power through the air devices which are horribly inefficient and will always be so. Have you ever stood under a high voltage pylon and held a fluorescent tube over your head? It will light up due to the EM field round the line which you are grounding. The transfer efficiency is low of course, otherwise the current would kill you. People who work in high strength fields such as live line workers have to wear conductive suits to prevent the fields from interfering with voluntary muscle control.
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