Fireworks Drawing

[displayfireworks1]

Not sure what this video is about and how the fireworks works. That is, if it really is fireworks?
.

https://www.youtube.com/watch?v=nqWzLUijJ9s

[chriskrc]

That's a pretty cool video Dave. It looked as if some fireworks were used but not all of it being fireworks. Still pretty amazing what can be done.