Here we are, about to head downtown to see the big fireworks display. It takes a lot of technology in order to time out and shoot the fireworks accurately, so we get the biggest bang and minimal injury. Even though fireworks is a multi-million dollar industry that now uses computerized launch systems, the general principles behind fireworks have remain unchanged for centuries.

Take a look at this scene from Science Channel's 'How It's Made' as they discuss fireworks and what goes into that big sparkly boom.