Re: Have you guys seen this...interesting
I checked the "Magnetic fields" link. Interesting idea from a far-out art point of view. Probably a very impressive display for anyone who checks it out.
Of course, the tubes do not light up from magnetic fields, but from the electric field from the HV lines. I see no harm in this. It is actually educational.
Are these HV fields health risks? Possibly, for utility men who had a lot of exposure over, say, 20 years or more. A large study conducted among Canadian utility workers several years ago did show a statistically significant connection between some cancers and long term exposure to both magnetic fields and electric fields, with the electric fields having the most weight.
After the study was published the utility or utilities clamped down and refused to let scientists access to the data for further study. (This is not rumored paranoia, but reported in scientific journals, since the scientists were frustrated not to have access to a huge amount of data).
As with all these studies, the increase in cancer was small, even though higher than could be explained by chance. So if I were a lineman I would not be worried, though if my family had a history of frequent cancer I might do some research. But I also would not want my utility to hide any data on this that they had collected.
Karl