Ultra High Speed Cameras - How do you film a tank shell in flight or a Nuclear bomb test?

Ever wondered how they film a tank shell in flight for over 100m meters like it was travelling at walking speed or the instant of a nuclear explosion. In this video, I look at the super high-speed cameras that can run at millions of frames per second that were made well before the modern electronic ones of today as well have the amazing flight follower systems and the fastest real-time tracker in the world.