Well if you really want to download it:
LitecNewtonFluidMod
Note that this isn't the newest version, nor the best. It's just the most stable so far.

Just run your buoyancy demo normally. The transparent cube has been replaced with a fluid. At the moment, you cannot change levels and back again, otherwise the fluid will be gone. That is fixed in the unstable version.

[EDIT] You must '0' move the camera to get it into a position where you can see the fluid.

Last edited by the_mehmaster; 07/14/09 22:57.