Shake the Bejesus Out of a Rocket

You just need to be able to puff your propellant a couple of times when you're in the microgravity was your falling down to earth, and detect whether or not that part is actually working. And i guess that's one of the other issues as well as i got to deal with, is is handling the gs of the launch,. But then also being able to handle the zero gs as well, and all the rattling and shaking and so on. Well, yes, it's they, especially out at goddard space flight center, for shaking the bejesus out of something before they launch it into outer space.