I found this randomly, it had no description. What is this and what is he trying to show?
h…ttp://www.liveleak.com/view?i=5d8_1175407250
ETA: Oops, when I checked back on the link, there were maybe NSFW ads. Above link is broken.
My guess is footage from skylab just demonstrating the properties of water in zero-g. The first experiment is just a basic wave propagation demonstration. The second experiment is dealing with collision dynamics. With no gravity, the intermolecular forces (attractive forces between molecules) dominate the behavior of the water. The surface tension of the droplets is high and results in elastic collisions. Not completely sure what is trying to show in the last experiment other than, look at this it is pretty cool.
That was my guess but would they really let that much water loose in the craft?
The Alka-Seltzer part is also on Youtube, described there as taken aboard the ISS in 2003.
I think the OP’s video has been redubbed by the experimenter at a later date, or he presented it at a lecture and supplied his own narration then. The narration doesn’t match the person’s mouth at the beginning.
I’ve seen other water globe videos done in free fall in an airplane.