The reason for the relay is voltage drop in the starter circuit. Because of the usually long length of cable from the starter to the control panel the voltage drop in the cable can be enough to prevent the solenoid from engaging fully. The result is a click and nothing else when you press the starter.
The Flash Interview: Danielle Panabaker On Why Killer Frost is Fascinated By Barry's Body. Danielle Panabaker, who plays Caitlin Snow in The Flash, has a new interview up on The CW's social media channel, explaining just why she's so interested in The Flash's body. The scientist in Caitlin is excited to know everything that's going on in Barry's body, Panabaker said. Sheâs smart. Sheâs beautiful.
The 25-year-old actor spent the weekend promoting his hit CW show The Flash with his co-stars Candice Patton, Carlos Valdes, John Wesley Shipp, Danielle Panabaker, and Tom Cavanagh. They participated in a panel and took portraits together at the Getty Images Portrait Studio.