In "celebration" of Tornado Week on the Weather Channel they have a nifty little program here that lets you create tornadoes of different intensities and experiment with how different objects react inside those tornadoes.
For example, it will tell you how high up and how far an F3 tornado can through a pig or a chicken. Or a truck or a train.
Fun, in a sick kind of way. Or should I say twisted? *groan*
So with that ringing endorsement, check it out. It's kind of fun.