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.
Life is going to get frosty for The Flashâs supporting castâand no, thatâs not a reference to Rogue (turned Legend) Captain Cold. Rather, itâs STAR Labs and âTeam Flashâ member Caitlin Snow who will ice things down for the Flash. As Danielle Panabaker, who plays Snow, revealed in a Reddit AMA, she will eventually become Killer Frost on the show. As Panabaker noted, From the beginning, I knew that Caitlin Snow becomes Killer Frost. And I can't wait to suit up and duke it out with the boys!.