Rocket Jump. The art of getting propelled higher by shooting a rocket below our feet as you are jumping.

I don't know where this technique came from, but it might have been popularized in Team Fortress 2 with the Soldier class.

And then, this came.

http://www.youtube.com/watch?v=6O95oG5N8po

So, the question is: why we can't use the Fus Ro Dah to get higher? Hence why I am requesting a mod allowing us to do so.