Make:

Robert writes-

This last weekend the whole family flew on Space Adventure's G-Force One (just featured last night on Mythbusters). Being science nuts, we spent some time thinking up experiments to do in microgravity, and ended up testing the Diet Coke & Mentos reaction.

We hacked a camera port and mount into a portable glove bag (to contain the mess) and filmed the whole thing with the Casio EX-F1 at 300 frames a second, using light from an emergency exit window. The results were a bit equivocal ("more research is needed, hahahah!") but the video is interesting, as is the story of how the experiment evolved and how we managed to do it.

http://rjwoodhead.blogspot.com/ for the whole story.

http://www.youtube.com/watch?v=P01kVKp6MIs for just the video.

We also hacked a hard drive into a gyroscope and flew it, but I won't have the video of that for a few weeks.

Kudos to the Space Adventures people, btw. They went the extra mile to help us work out a way to do the experiment (they are extremely science-friendly) and coordinated with the TSA to ensure that there would be no last minute hiccups.