Adam Experts News Today

Train speed, images from a video camera on the engine and log of when the trains operator used tools like the brake and throttle and horn. were waiting for the mayor of philadelphia to give us an update again at 2:15. adam experts weve been talking to say analogies like crack the whip or something like that if youre on an ice rink with your friends and youre going around the turns, that this train car resembles something like that because of the high rate of speed and inertia. >> reporter: the w...