Thanks for posting this, they effects of different types of metal is helpful. Has anyone used silver, nickle or german silver? I'll do some searches before I try- silver has traditionally been considered feminine, gold masculine, silver with psychism and receptivity and gold with energy and power.
As far as the potential of what is going on to human health, sad to say, my tin foil hat is welded permanently on. This just sounds so much cheaper than using a lazer from space.
It takes my breath away.