Materials
Right around 1/4 gallon of gasoline.
Instead of a can, this time we have a book to help us out, appropriately titled, “Don’t try this at home kids, you’ll loose an arm!”

Procedure
Again, we’ll skip this. No need for little Johnny to set fire to Aunt May’s trash cans. If you should be doing this kind of work, you already know how this was done.

Result
Another beautiful fireball. This time around however we can actually see the point where the fire becomes smoke. And what a gorgeous transition it is. Gasoline for all its blunders in the world of transportation sure does make a wonderful fireball. I hate to leave this section so sparse but sometimes the videos really do speak for themselves. It is pretty, that is about all there is to it!

Materials
A spinning firework of some kind. In this case I use a really cheap plastic shelled version.

Procedure
Set it in an open spot, light.

Result
The outside of the fuse is covered with a resin or epoxy that burns slower than the fuse it coats creating a simple propulsion device. The curvature of the fuse ensures that the firework spins in a specific manner. The sparks and smoke are both interesting to observe, as is the way the sparks illuminate the smoke as it passes.

Now let us look at the artifacting we see in the video. Specifically there is a carrying over of the brighter pixels on the right side of the screen to the left side. The pixels that are carried over also repeat across the screen in a regular interval. Another interesting artifact we see is the vertical banding on the smoke. I spoke with Nils over at Photron this afternoon in an attempt to figure out what was causing these issues.

After talking with Nils some more the problem was (as I originally thought) user error. The vertical banding is an issue that shows up when you haven’t calibrated the camera after moving to a new lighting condition. In this case I moved from indoors (bright) to the outdoors at night. You should calibrate the camera after doing any of the following; changing the lens, changing shutter speed or filming speed, changing the lighting. This will ensure you get a nice clean image. The repeating artifacting we believe is a lens issue but Nils is looking deeper into that problem. I have to say that I am really impressed with Photron’s technical support. The service has been incredibly fast and Nils was very knowledgeable and helpful. I have to commend Photron’s support, and when you are discussing a camera as expensive as this, good support is a must and they certainly nailed it. Well done Photron.