Harold P. Strand

It just sits there spitting, like a fugitive from a mad scientist’s laboratory. The current it’s discharging - in a wicked, noisy two-inch brush - is of such a high frequency you can’t measure it, but...

Miniature in size only, this physics classroom project packs 60,000 volts of power at 500,000 cycles per second. Yet it’s safe! Figure 1. Fluorescent lamps glow brightly by merely holding them near...