I had been noticing a whole series of lightning rods mounted on roof peaks at a nearby shopping mall. They all looked like this: Figure 1 Lightning rod mounted on roof peak. I wondered what purpose ...

S., the U. S. lightning rod industry continues. According to Department of Commerce figures issued last week, lightning rod business was $923,000 in 1928, $1,232,000 in 1929. Sales at present are ...

Brazilian researchers captured on camera the brief moment when lightning rods on buildings released ... Here’s how to figure out the ideal one for you.