[youtube]http://www.youtube.com/watch?v=Nj1cFNQFU2Q[/youtube]
Created by Rexjericho, these awesome animations are made using a fluid simulation program Rexjericho also developed. That part of it does the math, and then when you plug the results into Blender—an open-source computer animation program—you can get results in the form of very convincing waves of Lego
Sidd