I think Hi voltage electricity is KEWL!! take a look at my Icon picture...
if you look very closely you can see a grey item just under the silver donut on top of the red tube... ummm thats a 5 gallon bucket. so that kinda gives one an idea how big this thing really is..
the red tube is 12"in dia and 5' tall and the silver donut ( toroid) is about 9' off of the ground... and since the arc is curved and is hitting the ground below, that arc is nearly 12' long.
it takes 32,000 V per inch to arc
thru air... and considering a 12' arc... 144" X 32KV for about 4.6 million volts ( in Tesla coil applications)
sooo... when your hobby is making arcs like this for fun, the hi power 20+' foot arcs are really awesome
and yes that is my Tesla coil made by me
this is something I really want to see IRL one day...