How Technology Revolutionised Rail Travel | The Ultimates: Supersonic Trains | Spark
An exploration of extreme speed and power, focusing on the scientific research behind notorious war-time explosions, the worst collisions in sports car history, supersonic trains, thrill rides, strike planes, and attack helicopters. Subscribe to Spark for more amazing science, tech & engineering videos: https://goo.gl/LIrlur ? Find us on: Facebook: https://www.facebook.com/SparkDocs/>>>