Why power lines have those strange looking devices What are those odd looking things you always see attached to power lines? Turns out, they’re called lightning arresters and they’re crucial to preventing certain blackouts. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Can Scientists Work Outside The Standard Model of Physics? Bill Nye’s Answer on Why We Haven’t Heard of Aliens The Physics of Sperm vs. the Physics of Sperm Whales Inside CERN’s Massive Computer Center Is It Okay to Touch Mars? Is Big Data Getting Too Big?